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Purpose: This study aims to analyze the myopia prevalence in Spanish children from five to seven years old over the last five years and to predict the rate of myopia in Spain by 2030. Methods: The sample consisted of children aged between 5 and 7, who underwent an optometric examination consisting of the measurement of visual acuity (VA) and determination of objective and subjective refraction. In addition, they completed a lifestyle questionnaire. The cut-off points to define the refractive error are established according to the spherical equivalent (SE) value as hyperopia, for SE over +0.50D, myopia, for SE under -0.50D, or emmetropia, when the SE is between -0.50D and +0.50D. Results: The myopia rate in Spanish children aged between five and seven was 19%. Myopia prevalence progressively increased as children grew up (p≤0.001). It is estimated that, in the year 2030, the rate of myopia will be 30.2% [CI: 25.3–35.0]. Of which 81.9% [CI: 78.3–85.3] will have low myopia, 10.0% [CI: 7.2–12.8] moderate myopia, and 7.3% [CI: 4.9–9.7] high myopia. Conclusion: Nineteen percent of Spanish children between five and seven are myopes. In 2030 is expected that 30.2% of Spanish children between 5 and 7 years of age will be myopes. These estimations will support eye care professionals in recommending children spend more time outdoors to prevent the onset of myopia and the use of methods to control myopia to avoid reaching these figures of high myopia.

Background: To perform motor tasks, athletes must gather a considerable amount of visual information quickly. Evidence shows that visual skills vary between athletes and non-athletes, and impact athletic performance. However, there is no scientific evidence suggesting that there are any differences between the visual skills of federated and non-federated athletes. As such, the objective of this paper was to compare how visual skills influence the sports performance of federated and non-federated athletes, respectively. Methods: A visual examination has been conducted on a total of 52 athletes between 18 and 37 years of age. The COI-Sport Vision system screen (International Optometry Center, Madrid, Spain) was used to examine static visual acuity, dynamic visual acuity, contrast sensitivity, stereopsis, fixation disparity, visual memory, identification, anticipation time, peripheral awareness, and hand-eye coordination. Results: On average, federated athletes train more hours per day than non-federated athletes (1.4 ± 0.8) (p = 0.046). A significant correlation was observed between the average time of visual memory (β = −0.0683, p < 0.001), the average time of anticipation (β = 0.006, p = 0.009), the average time of peripheral awareness (β = 0.026, p = 0.002), hand-eye coordination (β = 0.028, p = 0.004), dynamic visual acuity (β = 0.055, p < 0.001), and the number of training hours. Conclusion: Results suggest that federated athletes are more concerned about their ocular health. Nonetheless, no differences were found in the oculomotor skills of both groups. Further investigation is required to consider each sport discipline individually.

Background and objective The implantation of multifocal intraocular lens (IOL) has increased in recent years, allowing patients to achieve good quality vision at all distances, independence from use of glasses, and consequently, an increase in quality of life. The main purpose of this study was to analyse the links between publications and authors via citation networks, as well to as identify the different research areas and determine the most cited publications. Material and methods The publication search was performed through the Web of Science database, using the terms «Multifocal intraocular lens», «Bifocal intraocular lens», «Trifocal intraocular lens», «Diffractive intraocular lens», «Refractive intraocular lens», «Accommodative intraocular lens» and «Extended depth of focus intraocular lens», for a time interval from 1989 to August 2020. The software used to analyse the publications was the Citation Network Explorer. Results A total of 1293 publications were found, with 11,730 citations generated in the network, and 2019 had the highest number of publications of any year. The most cited publication was «European multicenter study of the AcrySof ReSTOR apodized diffractive intraocular lens» by Kohnen et al., published in 2006. Four groups about different research areas in this field were found using the Clustering functionality: visual quality, IOL designs, ocular aberrations, or defocus curves. Conclusions The citation network offers an objective and comprehensive analysis of the main articles on the different designs and classes of multifocal IOL. Antecedentes y objetivo La implantación de lentes intraoculares (LIO) multifocales se ha incrementado en los últimos años, permitiendo a los pacientes una calidad de visión en todas las distancias, una independencia de la gafa y, en consecuencia, un aumento de la calidad de vida. El objetivo de este estudio es analizar las relaciones entre publicaciones y autores mediante las redes de citación, así como identificar las distintas áreas de investigación y determinar la publicación más citada. Material y método La búsqueda de publicaciones se realizó mediante la base de datos Web of Science, empleando los términos «Multifocal intraocular lens», «Bifocal intraocular lens», «Trifocal intraocular lens», «Diffractive intraocular lens», «Refractive intraocular lens», «Accommodative intraocular lens» y «Extended depth of focus intraocular lens», en un intervalo de tiempo entre 1989 y agosto del 2020. Para el análisis de las publicaciones se empleó el software Citation Network Explorer. Resultados Se encontraron 1.293 publicaciones con 11.730 citaciones generadas en la red, siendo el año 2019 el de mayor número de publicaciones. La publicación más citada es «European multicenter study of the AcrySof ReSTOR apodized diffractive intraocular lens», de Kohnen et al., publicada en el año 2006. Mediante la función Clustering se encontraron cuatro grupos sobre distintas áreas de investigación en este campo, tales como: calidad visual, diseños de LIO, aberraciones oculares o curvas de desenfoque. Conclusiones La red de citaciones muestra un análisis exhaustivo y objetivo de los principales trabajos sobre los distintos diseños y clases de LIO multifocales. Sin financiación No data 2021 UEM

Antecedentes y objetivo La implantación de lentes intraoculares (LIO) multifocales se ha incrementado en los últimos años, permitiendo a los pacientes una calidad de visión en todas las distancias, una independencia de la gafa y, en consecuencia, un aumento de la calidad de vida. El objetivo de este estudio es analizar las relaciones entre publicaciones y autores mediante las redes de citación, así como identificar las distintas áreas de investigación y determinar la publicación más citada. Material y método La búsqueda de publicaciones se realizó mediante la base de datos Web of Science, empleando los términos «Multifocal intraocular lens», «Bifocal intraocular lens», «Trifocal intraocular lens», «Diffractive intraocular lens», «Refractive intraocular lens», «Accommodative intraocular lens» y «Extended depth of focus intraocular lens», en un intervalo de tiempo entre 1989 y agosto del 2020. Para el análisis de las publicaciones se empleó el software Citation Network Explorer. Resultados Se encontraron 1.293 publicaciones con 11.730 citaciones generadas en la red, siendo el año 2019 el de mayor número de publicaciones. La publicación más citada es «European multicenter study of the AcrySof ReSTOR apodized diffractive intraocular lens», de Kohnen et al., publicada en el año 2006. Mediante la función Clustering se encontraron cuatro grupos sobre distintas áreas de investigación en este campo, tales como: calidad visual, diseños de LIO, aberraciones oculares o curvas de desenfoque. Conclusiones La red de citaciones muestra un análisis exhaustivo y objetivo de los principales trabajos sobre los distintos diseños y clases de LIO multifocales. Background and objective: The implantation of multifocal intraocular lens (IOL) has increased in recent years, allowing patients to achieve good quality vision at all distances, independence from use of glasses, and consequently, an increase in quality of life. The main purpose of this study was to analyse the links between publications and authors via citation networks, as well to as identify the different research areas and determine the most cited publications. Material and methods: The publication search was performed through the Web of Science database, using the terms «Multifocal intraocular lens», «Bifocal intraocular lens», «Trifocal intraocular lens», «Diffractive intraocular lens», «Refractive intraocular lens», «Accommodative intraocular lens» and «Extended depth of focus intraocular lens», for a time interval from 1989 to August 2020. The software used to analyse the publications was the Citation Network Explorer. Results: A total of 1293 publications were found, with 11730 citations generated in the network, and 2019 had the highest number of publications of any year. The most cited publication was «European multicenter study of the AcrySof ReSTOR apodized diffractive intraocular lens» by Kohnen et al., published in 2006. Four groups about different research areas in this field were found using the Clustering functionality: visual quality, IOL designs, ocular aberrations, or defocus curves. Conclusions: The citation network offers an objective and comprehensive analysis of the main articles on the different designs and classes of multifocal IOL. Sin financiación No data JCR 2021 0.209 SJR (2021) Q4, 97/128 Ophthalmology No data IDR 2021 UEM

Purpose: The objective of this study is to analyse co-authorship and co-citation networks of publications in the field of artificial intelligence in ophthalmology and optometry. As well as, identify the different areas of research and the most cited publication. Method: A search of publications was performed in the Web of Science database for the period from 1977 to December 2021, using the term “Artificial Intelligence AND (Ophthalmol* OR optometry)”. The analysis of the publication was carried out using the Citation Network Explorer, VOSviewer and CiteSpace software. Results: 1086 publications and 2348 citation networks were found. 2020 was the year with the highest number of publications, a total of 351 publications and 115 citation networks. The most cited publication was “Clinically applicable deep learning for diagnosis and referral in retinal disease” published by De Fauw et al. in 2018, with a citation index of 723. Through the clustering function, three groups were found that cover the main research areas in this field: retinal pathology, anterior segment and glaucoma. Conclusions: The citation network analysis offers an in-depth analysis of scientific publications and the adoption of new topics and fields of research. The results of an exhaustive analysis of citation networks in artificial intelligence in the field of ophthalmology and optometry are presented since the publication of the first article in 1977.

espanolEn los ultimos anos, la prevalencia de la miopia en el mundo ha aumentado significativamente. El objetivo de este trabajo fue identificar la prevalencia combinada de la miopia en America segun las siguientes categorias: edad, raza, genero y region. Se realizo una revision sistematica de la literatura en las bases de datos Medline, Embase y Lilacs, con el objetivo de buscar estudios transversales con informacion sobre la prevalencia de miopia. Para encontrar la prevalencia combinada se utilizo el metodo de doble arco sinusoidal de efectos fijos o aleatorios de Freeman-Tukey. Se analizaron 15 estudios que incluyeron a 45.349 personas de Estados Unidos, Brasil y Paraguay, de 0 a 96 anos. El rango de prevalencia vario del 1,2 % al 48 % con diferencias entre hombres y mujeres del 18,4 % [IC del 95 %: 13,9-22,8] y el 19,8 % [IC del 95 %: 18,9-20,7], respectivamente. La prevalencia global en las zonas rurales fue del 1,4% [IC del 95 %: 1,3-1,5] y en las zonas urbanas del 14,3 % [IC del 95 %: 13,3-15,2]. Al mismo tiempo, se identificaron algunas diferencias basadas en la raza. En el caso de la raza blanca 15,4 % [IC 95 %: 14,4-16,3], raza negra 20,6 % [IC 95 %: 19,6-21,5] y otras razas (espanola, no espanola y afroamericana) 2,9 % [95 % CI: 1,97-3,82]. Las cifras mas bajas de prevalencia de miopia se identificaron en areas rurales en ninos en edad preescolar; Es probable que exista una relacion en el uso y el tiempo de exposicion a elementos electronicos como pantallas en contraste con el desarrollo de otras actividades en interiores. EnglishIn recent years, prevalence of myopia in the world has increased significantly. The aim of this research work is to consider the combined prevalence of myopia in America, according to the following categories: age, race, gender, and region. Such research will be done also in harmony with the reports found in scientific literature. A systematic review of the literature found in the following databases was carried out: medline, embase, and lilacs. The aim was searching cross-sectional studies containing myopia prevalence information. To find the combined prevalence, the double arc sine method of fixed or random effects by Freeman-Tukey was used. 15 research studies that included 45.349 individuals from the United States, Brazil, and Paraguay, were identified in the literature; studies of subjects aged 0-96 years old. The prevalence of myopia varied from 1,2% to 48% with differences between male and female of 18,4% [95% CI: 13,9-22,8] and 19,8% [95% CI: 18,9-20,7], respectively. The global prevalence of myopia in rural areas was 1,4% [95% CI: 1,3-1,5], and in urban areas 14,3% [95% CI: 13,3-15,2]. At the same time, some differences were identified based on race. In the case of the white race 15,4% [95% CI: 14,4-16,3], Afrodescendants 20,6% [95% CI: 19,6-21,5] and other races (Spanish, non-Spanish, and African American) 2,9% [95% CI: 1,97-3,82]. The lowest figures of myopia prevalence were identified in rural areas in pre-school children (14,1%). There is, probably, a relationship in use and exposure time to electronic items such as screens, in contrast with the development of other indoor activities as outdoor exposure as an environmental factor to slow myopia.

Ocular pathologies can lead to permanent vision loss and pose an important public health problem [...]

Background: Myopia has become a public health issue worldwide. The fast increase in myopia prevalence in the last years has been accompanied by an increase in information through social and conventional media. This has led to the fight not only against a pandemic but also against the infodemic. The excess of information has made it increasingly difficult for health professionals to identify high-quality articles. Alternative Metrics are useful tools to identify publications that provoke attention to society. This research aims to study the impact that research on myopia has had on social media. Methods: Almetric Explorer was used to make a search using “myopia” as a keyword. The 100 outputs with the highest attention were analyzed and correlated with the number of cites on Web of Science using Spearman’s correlation coefficient. Results: The top 100 Altmetric Attention Score were published in 47 journals and had a mean value of Altmetric Attention Score of 437.61 ± 718.33. The outputs were mostly discussed on Twitter, with a mean of 296.36 ± 1585.58 tweets and retweets, and a mean of 185.18 ± 211.57 readers in Mendeley. There was a low correlation between Altmetric Attention Score and Web of Science Cites for the top-100 outputs. Conclusions: although myopia is a research topic with a high interest in society, most cited articles are not those with the most impact on social media. Myopia researchers should make more effort in promoting their goals, and social media is a useful tool to share them.

The relationship between vision and academic performance has been discussed for a long time, with special emphasis on visual factors associated with learning problems. The objective of this pilot study is to obtain an initial idea about the evolution and the impact of refractive errors on school-aged children. A visual examination was performed on 252 children between the ages of 6 and 11 years, which consisted of objective refraction, subjective refraction, and accommodative and binocular tests. No significant differences were observed regarding the refractive state when taking academic performance into account (p > 0.05). However, it was determined that academic performance was better among children with a negative spherical equivalent. Studies with a larger sample size must be conducted to verify the results that were attained in this present pilot study, and these must likewise look at possible ways in which strategies can be implemented in schools to reduce myopia progression.

The lack of information on active military pilots has led to the present study, which aimed to analyze the sense of aviation-associated spatial disorientation and the incidence of visual illusions ...

Purpose: To analyze the state of scientific publications in multifocal contact lenses field through a bibliometric study. Methods: The database used to carry out the study was SCOPUS and contained the descriptors ‘‘multifocal contact lens’’, ‘‘bifocal contact lenses’’, ‘‘progressive contact lenses’’ and ‘‘presbyopia contact lenses’’, limited to the fields of title, keywords and abstract. The indicators applied in this research were: doubling time and annual growth rate, Price’s transience index, Lotka’s law of scientific productivity, and Bradford’s zones. Results: A total of 346 articles were published between 1960 and 2019. The growth in the number of publications matches the exponential adjustment slightly better (R = 0.53). The duplication time was 13.2 years. The productivity level is focused on articles with an average number of authors of just 2.06 per article. The Bradford core was formed by two journals, Optometry and Vision Science and Eye and Contact Lens. Conclusions: Research on multifocal contact lenses has exponential growth, without evidence of having reached a saturation point. The main countries in scientific production in this field are the United States and Australia. Sin financiación No data JCR 2021 0.653 SJR (2021) Q2, 3/12 Optometry No data IDR 2021 UEM

(1) Background: Chronic diseases affect patients’ quality of life. Age Macular Degeneration (AMD) is one of the most prevalent chronic ocular diseases. The study aims to measure the anxiety and quality of life related to vision in patients with AMD, as well as the relationship with other visual and demographic parameters. (2) Methods: Prospective cross-sectional study in AMD patients. Visual acuity (VA), contrast sensitivity (CS), line difference in the Colenbrander test, and the degree of pathology were measured. Other variables such as gender, age, and time from the diagnosis were also collected. Anxiety was measured with the Spielberger State-Trait Anxiety Inventory (STAI) and quality of life with the National Eye Institute Visual Function Questionnaire (NEI VFQ-25). The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) checklist was followed. (3) Results: Patients with higher punctuation in Trait STAI showed lower punctuation in NEI VFQ-25 questionnaire (Spearman coefficient −0.415; p = 0.001). The variables VA, CS, and age were correlated to the quality of life. The relationship between trait anxiety and subscales of NEI VFQ-25 was significant for all subscales (p < 0.05), except for social functioning, peripheral vision, general vision, ocular pain, and driving. (4) Conclusions: AMD patients with higher levels of anxiety show a decrease in their quality of life. The quality of life of AMD patients depends on their VA and CS. Sin financiación 4.614 JCR (2021) Q1, 45/182 Public, Environmental & Occupational Health 0.814 SJR (2021) Q1, 34/136 Health, Toxicology and Mutagenesis No data IDR 2020 UEM

Background: The main objective of this study was to use citation networks to analyze the relationship between different publications on the impact of cytokines at an ocular level and their authors. Furthermore, the different research areas will be identified, and the most cited publications determined. Methods: A search was performed in the Web of Science (WoS) database using the following keywords: “cytokine”, “inflammatory”, and “eye disease” for the period from 1990 to October 2021. The Citation Network Explorer and the CiteSpace software were then used to analyze the different publications. Results: 3127 publications with 8955 citations generated on the web were found. The largest number of publications on this topic emerged in 2018 and the authors with the largest number of publications addressing this area of research were Peizeng Yang (1.4%), Aize Kijlstra (1.3%), and Stephen C. Pflugfelder (1.2%). Conclusions: the citation network has provided a comprehensive and objective analysis of the main studies on the influence of cytokines in ocular inflammatory diseases.

Background: Due to the importance of choroidal thickness in the development of myopia, this study examined the effect of MiSight contact lenses (CLs) on the choroidal thickness of myopic children and the differences between responders and non-responders to the treatment with these CLs. Methods: A total of 41 myopic children were fitted with MiSight CLs and 33 with single-vision spectacles. They were followed up for two years. Subfoveal choroidal thickness and choroidal thickness 1 and 3 mm temporal and nasal to the fovea were measured by OCT at baseline and one and two years after the treatment. Differences in all the choroidal thickness parameters were assessed in each group over time. Patients from the MiSight group were classified based on a specific range of changes in axial length at the end of the second year of treatment as “responders” (AL change < 0.22 mm/per year) and “non-responders”, and the choroidal thickness of both groups was analyzed. Results: The subfoveal choroidal thickness of the MiSight and single-vision spectacle groups did not show any changes over time. Wearing MiSight CLs induced relative choroidal thickening in the responder group in the first year of treatment. Conclusion: Choroidal thickness might work as a predictor of the effectiveness of MiSight in myopia treatment.

Background: Driving is the main mode of transportation in many countries, and visual safety depends largely on good visual health. The objective of this study is to analyze the visual health of Spanish drivers, as well as analyze the difference between professional and non-professional drivers. Methods: A visual screening was carried out in Spanish drivers from all over Spain, in which the following tests were performed: monocular visual acuity in distance and near vision, visual field, stereopsis, contrast sensitivity, intraocular pressure and balance test binocular. Subsequently, a questionnaire was carried out on the patient’s driving data and ocular antecedents. Results: 74.5% of the drivers used glasses to drive, of which 61.5% used progressive glasses. However, 39.4% reported having difficulties seeing well. The mean visual acuity in the distance and near was 0.93 ± 0.13 and 0.94 ± 0.13, respectively. Significant differences have been found in accident risk based on visual acuity (p &lt, 0.001). But no significant differences have been found in terms of visual field, stereopsis, contrast sensitivity, binocular balance and intraocular pressure (p &gt, 0.05). Conclusion: Vision appears to play a key role in driving and a good visual assessment is recommended for early detection of visual problems that may affect road safety. A study with a larger sample size would be necessary to confirm the results of this pilot study.

Background: In recent years, there was a significant increase in myopia incidence worldwide. However, it is still not clear how it affects Spanish children. Since 2016, this research team analyzed myopia prevalence and risk in 9668 children aged between 5 and 7 years. It was shown that the prevalence rates increased from 16.8% in 2016 to 20.4% in 2019. The objective of this study is to update the prevalence rate of myopia in Spain in 2020 and analyze the risk and prevention factors of myopia. Methods: The participants underwent an optometric examination, and a questionnaire on their lifestyle, family history, and geographical origin was carried out. Finally, data were analyzed using the SPSS version 27 program. Results: 1601 children from various Autonomous Communities of Spain were examined. In 2020 the myopia rates did not increase compared to 2019 (p < 0.05), although the number of hyperopes decreased and the number of emmetropes increased. Regarding age, the prevalence of myopia increased progressively over the years (p < 0.001). There was no association between gender and myopia (p > 0.05). There was a link between the time spent in near vision and family history with the prevalence of myopia (p < 0.05). Conclusions: The prevalence of myopia in Spain in children between 5 and 7 years old increased significantly between 2016 and 2020.

Background: Sports vision is a specialisation of optometry whose objective is to improve and preserve visual function to increase sports performance. The main objective of the present study was to compare the visual expertise of non-athletes to skeet shooting athletes. Methods: Participants underwent an optometric assessment in which all those with severe deviations from normal vision, after compensating for visual abnormalities, were eliminated. After that, the following six visuospatial components were measured: hand–eye coordination, peripheral awareness, fixation disparity, saccadic eye movements, speed of recognition and visual memory. To measure the aforementioned components, the following tests were used: directional arrows, similar and different characters, the dichromatic disparity test, character marking, a tachistoscopic test and tic-tac-toe using COI-vision software. Results: Skeet shooting athletes performed significatively better (p ≤ 0.05) in two out of the six tests: hand–eye coordination and visual memory. Conclusions: Although this study does not support the theory that athletes—in this case, skeet shooting athletes—perform significantly better in most components of the visuospatial tests, visual memory and hand–eye coordination are exceptions. To be more accurate in distinguishing between athletes and non-athletes, specific testing methods that can be used by a wide variety of disciplines should be developed. Training the weakest aspects of athletes can improve their sports performance.

Background: Myopia is a public health problem, with estimations that 50% of the world population will be myopic by 2050. Some environmental factors, such as time spent outdoors, doing near work, and using digital devices, influence the development of myopia in children. Home confinement in Spain has increased these risk factors, so this study aims to investigate the impact of home confinement during the COVID-19 outbreak in the vision of school-aged children, Methods: A cross-sectional study in children between 5 and 7 years old that completed a visual screening and a questionnaire about their lifestyles at opticians in Spain in September and October of 2019 and 2020. Statistical analysis to compare lifestyles pre and post confinement, and vision in 2020 versus a similar cohort examined at the same opticians in 2019, was conducted, Results: Spanish children spent less time outdoors and more time doing near work in 2020 than in 2019 (p ≤ 0.001). There was a significant decrease of the spherical equivalent (mean ± standard deviation, 0.66 ± 2.03 D in 2019 vs. 0.48 ± 1.81 D in 2020, p ≤ 0.001), Conclusions: Lifestyles of Spanish children changed during the home confinement at the beginning of 2020. Together with changes in their lifestyles, spherical equivalents have decreased, which implies higher figures of myopia for children aged between 5 and 7.

Background: Sports vision is a relatively new specialty. The objective is to provide ophthalmological and optometric care services for the care of vision in the sports field. An increasing number of athletes and coaches are trying to improve visual skills and they seek information on social media. The current excess of information has made it increasingly difficult to identify high quality articles. For this reason, alternative metrics are useful tools to identify publications that draw attention to society. This research aims to study the influence of social networks on the importance of vision in sport. Methods: Altmetric Explorer was used to perform a search using “sport”, “vision” and “eye” as keywords. The 100 outcomes with the most attention were analyzed and correlated with the number of citations in the Web of Science (WoS) using the Spearman correlation coefficient. Results: The 100 best Altmetric Attention Scores (AASs) were published in 67 journals and had a mean AAS value of 30.22 ± 62.37 The results were discussed mainly on Twitter, with a mean of 113.99 ± 43.86 tweets and retweets and a mean of 75.92 ± 79.92 readers in Mendeley. There was no correlation between AAS and WoS Cites for the top 100 outcomes and the correlation was low if we considered the total research results rather than the top 100. Conclusions: The citations are not related to the impact of scientific articles on social networks. Sports vision is a specialty with a growing interest in social media.

Background Contact lenses can cause complications in 2/3 of the total population, but in most cases, they are mild and easy to manage. However, most of the studies are short-term. The aim of the study was to analyze the publications on the long-term effects of contact lens wear to understand the current research landscape through the analysis of dating networks as well as determining the different research areas and the most cited publications. Methods The Web of Science database was used to perform the publication search, looking for the terms “Long-term” AND “contact lens wear” within the period between 1977 and January 2021. The CitNetExplorer and CiteSpace software were then used to conduct the publication analysis. To obtain the graphics, the VOSviewer software was used. Results A total of 721 publications were found with 2999 citations generated within the network. The year 2010 was singled out as a “key year”, considering the number of publications that emerged in that year and increase in adaptations of contact lens worldwide. The most widely cited publication was “Effects of long-term extended contact lens wear on the human cornea”, an article by Holden et al., which was published in 1985. By using the clustering function, we were able to establish three clusters that encompassed the different research areas within this field: morphological changes, the loss of corneal sensitivity, tear film characteristics and longitudinal changes in ocular physiology. Conclusions The main research topic in this field focuses on the morphological changes that take place in the corneal endothelial cell layer.

Background: The treatment of floaters has consisted primarily of monitoring. The therapeutic approach is based on surgical removal or Nd:YAG laser treatment. The objective of this study was the assessment of the quality of life in patients treated with Nd:YAG laser for floaters. Methods: Single-center pretest-posttest design in a cohort of subjects treated with Nd-YAG laser with Ultra Q-Reflex technology. Health-related quality of life of the patients was measured before and after the intervention with the Visual Function Questionnaires VFQ-25 and VFQ-39. Anxiety level was measured with the State-Trait Anxiety Inventory. Visual acuity, contrast sensitivity, and safety parameters were also considered. Results: Thirty-four patients were included in the study. For the VFQ-25 baseline, the median was 73.05, interquartile range (19.25) versus a final median value of 93.76 (8.73) with p Conclusions: This study shows an improvement in the health-related quality of life and a significant decrease in anxiety for patients that have undergone Nd: YAG Ultra-Q Reflex laser vitreolysis for floaters vaporization. The effect found is higher in myopic patients.

(1) Background: In mesopic lighting conditions, or under adverse environmental circumstances, visual information is reduced, which increases the risk of traffic accidents. This effect could be reduced with a precise evaluation of the visual function under mesopic conditions, but it is difficult to replicate in clinics. This study aims to develop an easy-to-adopt method to evaluate mesopic visual acuity (VA) in drivers. (2) Methods: Prospective and observational study in drivers. logMAR mesopic VA was compared with photopic VA measured under different combinations of contrast charts and filters to find the combination that responds best to mesopic conditions. (3) Results: Fifty-six drivers were examined. The best correlation was found with an 80% density filter and a Weber contrast chart of 20%. The logMAR VA for this combination was 0.01 ± 0.11, which was close to the mesopic VA values (0.01 ± 0.12). The difference between both logMAR VA was 0.00 ± 0.06 (R = 0.86, p ≤ 0.001, ICC = 0.86). (4) Conclusions: The use of 20% contrast optotypes and the interposition of an 80% filter under photopic conditions provide VA values similar to those measured under mesopic lighting conditions, making this simple system a good predictor of mesopic VA values.

Background: The main objective of this study was to use citation networks to analyze the relationship between different publications on the impact of COVID-19 at an ocular level and their authors. Furthermore, the different research areas will be identified, and the most cited publication will be determined. Materials and Methods: The publications were searched within the Web of Science database, using “ocular”, “SARS-CoV-2”, “ophthalmology”, “eyesight”, and “COVID-19” as keywords for the period between January 2020 and January 2021. The Citation Network Explorer and the CiteSpace software were used to analyze the different publications. Results: A total of 389 publications with 890 citations generated on the web were found. It must be highlighted that July was the month with the largest number of publications. The most cited ones were “Characteristics of Ocular Findings of Patients with Coronavirus Disease 2019 (COVID-19) in Hubei Province, China” by Wu et al., which was published in May 2020. Three groups covering the different research areas in this field were found using the clustering functions: ocular manifestations, teleophthalmology, and personal protective equipment. Conclusions: The citation network has shown a comprehensive and objective analysis of the main studies on the impact of COVID-19 in ocular disease.

Recent studies in Spain have shown that males, younger workers, and people involved in manual jobs had the highest risk of suffering a work-related eye injury (WREI). This study aims to assess the predictors of sick leave associated with WREI and to compare them with risk factors of initial injury. A retrospective and descriptive study of WREI that causes sick leave of one or more days among workers from an insurance labor mutual company in Spain was conducted over a period from 2008 to 2018. The variables of the study were sex, age, occupation, and type of injury. A total of 9352 (18.6% of 50,265 WREI) cases and 113,395 total days of sick leave were observed, with an estimated EUR 4,994,009.59 of associated labor cost. The main predictors of sick leave related to WREI were found to be female (highest incidence, 25.9 (95% CI (24.8–27.1))), &gt, 55 years of age (highest incidence, 20.5 (95% CI (19.3–21.7))), not working in the industry (lowest incidence, 13.8 (95% CI (13.3–14.2))), and not suffering “other disorders of conjunctiva” (lowest incidence, 5.7 (95% CI (4.7–6.8))). The consequences associated with WREI are worse for female and older workers, despite the main risk of suffering WREI being observed in males and younger workers.

Background: Ocular exposure to intense light or long-time exposure to low-intensity short-wavelength lights may cause eye injury. Excessive levels of blue light induce photochemical damage to the retinal pigment and degeneration of photoreceptors of the outer segments. Currently, people spend a lot of time watching LED screens that emit high proportions of blue light. This study aims to assess the effects of light emitted by LED tablet screens on pigmented rat retinas with and without optical filters. (2) Methods: Commercially available tablets were used for exposure experiments on three groups of rats. One was exposed to tablet screens, the other was exposed to the tablet screens with a selective filter and the other was a control group. Structure, gene expression (including life/death, extracellular matrix degradation, growth factors, and oxidative stress related genes), and immunohistochemistry in the retina were compared among groups. (3) Results: There was a reduction of the thickness of the external nuclear layer and changes in the genes involved in cell survival and death, extracellular matrix turnover, growth factors, inflammation, and oxidative stress, leading decrease in cell density and retinal damage in the first group. Modulation of gene changes was observed when the LED light of screens was modified with an optical filter. (4) Conclusions: The use of short-wavelength selective filters on the screens contribute to reduce LED light-induced damage in the rat retina. Sin financiación 7.666 Q2 JCR 2021 1.452 Q1 SJR 2021 No data IDR 2021 UEM

In response to a comment, in this study [...]

Background: Many epidemiological and experimental studies have established that myopia is caused by a complex interaction between common genetic and environmental factors. The objective of this study was to describe and compare the allelic and genotypic frequencies of the rs524952 (GJD2), rs8000973 (ZIC2), rs1881492 (CHRNG), rs1656404 (PRSS56), rs235770 (BMP2), and rs7744813 (KCNQ5) SNPs (single-nucleotide polymorphism) between responder and nonresponder patients who had undergone a two-year treatment with lenses for myopia control. Method: Twenty-eight participants from the MiSight Assessment Study Spain (MASS), who had received treatment for myopia control for two years with MiSight contact lenses, were examined. The criteria for better/worse treatment response was the change in the axial length (&lt, / ≥ 0.22 mm two years after the treatment). The clinical procedure consisted of the extraction of a saliva sample, and the participants also underwent an optometric examination. Genetic data were analyzed using SNPStats software (Catalan Institute of Oncology, Barcelona, Spain), and statistical analysis was performed using SPSS v.25 (SPSS Inc., Chicago, IL, USA). Demographic variables were analyzed using the Student’s t-test. Results: The T allele, the one with the lowest frequency, of the “rs235770” SNP was associated with a better treatment response [AL/CR (axial length/corneal radius): OR = 3.37, CI = 1.079–10.886, SE (spherical equivalent): OR = 1.26, CI: = 0.519–57.169, p = 0.019). By performing haplotype analysis, significant differences were found between the rs235770…rs1881492 and rs235770–rs1656404 polymorphisms. The latter presented a strong linkage disequilibrium with each other (r2 ≥ 0.54). Conclusion: The result of lens therapies for myopia control could vary depending on genetic variants. Studies with a larger sample are needed to confirm the results presented in this pilot study.

ObjectiveTo describe the epidemiological characteristics and trends of work-related eye injuries (WREIs) in Spain over a 10-year period by sex, age and occupational sector.Design and settingsA descriptive, retrospective and longitudinal study based on data from workers insured by a labour insurance company in Spain from 2008 to 2018 was presented. The study considered the ratio of the number of WREI per 100 000 population and the relative risk of suffering an ocular injury. WREIs were characterised by sex, age and occupational sector of injured workers.Primary and secondary outcome measuresRatio of the number of WREI.ParticipantsIn Spain, all workers are insured by a labour insurance company that provides cover in the event of work-related accidents. In this study, we have included all workers insured by one of these insurance companies, IBERMUTUA, with workers in all areas of Spain.ResultsThe study included 50 265 WREI in the company over the 10-year period. Most of the injuries occurred in males (44 445; 88.4%), in 35–44 age group (15 992; 31.8%) and in industry workers (18 899; 42.6%). The average incidence was 429.75 per 100 000 workers insured and 4273.36 per 100 000 IBERMUTUA accidents (related and not related to eyes). Males, 16–24 age group and industry occupational sector group, have the highest incidence for WREI. The incidence of WREI decrease over the study period in all variables. Males have 6.56 (95% CI 6.38 to 6.75) times more risk of suffering WREI than females. 16–24 age group have 1.77 (95% CI 1.71 to 1.83) times more risk than in the group of workers older than 55. Finally, industry workers have 7.73 (95% CI 7.55 to 7.92) times more risk than services workers.ConclusionsThe risks of suffering WREI is higher for males, younger and less experienced workers, and for those who works in a manual task.

Background: Age-related macular degeneration (AMD) is a disease with an increasing incidence due to the general aging of the population that decreases the patient&rsquo, s quality of life. This work aims to study whether selective cut optical filters improve the AMD patient&rsquo, s quality of life. Methods: Prospective and longitudinal study in 79 patients. Visual acuity, contrast sensitivity, and the line differences in the Colenbrander test were measured. Patients answered The National Eye Institute 25-Item Visual Function Questionnaire (NEI VFQ-25), which measures the quality of life related to vision before and after using cut optical filters. Results: There was an improvement of 5.99 points (3.7&ndash, 8.3) in NEI VFQ-25 after wearing filters. This improvement was 4.0 points for 450-nm filters and 12.7 points for 511-nm filters. For patients with visual acuity (VA) &lt, 0.25, results of NEI VFQ-25 increased by 10.11 points (1.19&ndash, 19.02) and for patients with late AMDs, results increased by 5.33 points (1.31&ndash, 9.35). Conclusions: Selective filters improve the quality of life of patients with AMD. The success rate in the fitting of filters is better for those with VA lower than 0.25 and those with late or advanced AMD.

Background: Several studies show a high percentage of eye injuries related to work compared to other origins. However, there are few studies that describe work-related eye injuries. Methods: A descriptive, retrospective, and longitudinal study that describes the characteristics of work-related eye injuries in a group of insured workers. Eye injuries were classified according to the International Classification of Diseases (ICD-10) and analyzed over 10 years (2008&ndash, 2018). Results: Keratitis and conjunctivitis were the most prevalent injuries (26,674 (53.1%) and 15,906 (31.6%)). Keratitis and conjunctivitis also show the highest percentage of injury incidence per 100,000 insured workers in both sexes, any age group, and any occupation. The analysis of the cumulative percentage change and average annual percent change in incidences over ten years shows a decrease in the incidences of all injuries, except for other disorders of the eye and anexa. Conclusions: Most of the work-related eye injuries affect the most exposed eye structures in any line of work: the cornea and conjunctiva. Suitable protection of these eye structures will decrease the number of cases of work-related eye injuries.

Introduction Advances in medicine have contributed to a higher average life expectancy, as well as an increasing number of chronic diseases patients. This longevity means that the assessment of the quality of life, particularly that related to vision, has become very relevant. Objective The validation of the translation and cross-cultural adaptation into Spanish of one of the most widely used vision-related quality of life questionnaires. It has sought to ensure that the Spanish version of the questionnaire was equivalent in semantic, conceptual, and technical content and criteria level, compared to its already validated English version. Method An analytical observational study was conducted using a cohort of patients, in whom their quality of life related to vision was analyzed. The study was developed in two steps; the first was the translation and cross-cultural adaptation to Spanish of the NEI VFQ-25 questionnaire. The second one was the psychometric study of the reliability and validity of the scale of the Spanish version. Results The analysis of the terms of reliability and validity showed that the translation and cross-cultural adaptation met the expected requirements and was well accepted by users. Conclusion There is now a possibility of having a Spanish validated questionnaire available to assess the quality of life related to vision in patients with chronic diseases, such as age-related macular degeneration.

Sin financiación 2.386 JCR (2018) Q2, 21/60 Ophthalmology 0.824 SJR (2018) Q2, 38/126 Ophthalmology, 758/2844 Medicine (miscellaneous) No data IDR 2018 UEM