18 results on '"Schuster, A. K."'
Search Results
2. Do biometric parameters improve the quality of optic nerve head measurements with spectral domain optical coherence tomography?
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Elksne, E., Stingl, J. V., Schuster, A. K., Wagner, F. M., and Hoffmann, E. M.
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Retinal Ganglion Cells ,SD-OCT ,Biometry ,genetic structures ,Optic Disk ,Pilot Projects ,General Medicine ,RE1-994 ,Optic nerve head ,MRW ,eye diseases ,Ophthalmology ,Cross-Sectional Studies ,Nerve Fibers ,RNFL ,Humans ,Bruch Membrane ,Prospective Studies ,sense organs ,Intraocular Pressure ,Tomography, Optical Coherence ,Research Article ,BMO - Abstract
Background Spectral domain optical coherence tomography (SD-OCT) is a widely applied non-invasive technique for evaluating optic nerve head parameters. The aim of this study was to evaluate the impact of biometric parameters such as the spherical equivalent (SE) and the anterior corneal curvature (ACC) on the peripapillary retinal nerve fiber layer (pRNFL), Bruch’s membrane opening (BMO), and the minimum rim width (MRW) measurements performed by spectral domain optical coherence tomography (SD-OCT) in glaucomatous and healthy eyes. Methods In this cross-sectional, case–control prospective pilot study, the glaucoma group consisted of 50 patients with previously diagnosed and treated glaucoma and one healthy group of 50 subjects. Two consecutive examinations of pRNFL, BMO, and MRW with SD-OCT for every patient were performed without ACC and objective refraction (imaging 1) and with them (imaging 2). Results The interclass correlation coefficient (ICC) reflected high agreement between imaging 1 and imaging 2 in both groups. The ICC in the glaucoma and healthy groups for pRNFL (0.99 vs. 0.98), BMO (0.95 vs. 0.97), and MRW (1.0 vs. 1.0) was comparable. Conclusions Our preliminary data from a small number of eyes showed that the measurements of pRNFL, MRW, and BMO reflected high agreement between both imaging techniques with ACC and objective refraction and without these parameters in subjects with a refractive error up to ± 6.0 diopters. Further studies with participants with higher refractive error are necessary to evaluate the impact of biometric parameters such as SE and ACC on measurements with SD-OCT.
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- 2022
3. Physical Activity, Incidence, and Progression of Age-Related Macular Degeneration: A Multicohort Study
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MAUSCHITZ, Matthias M., SCHMITZ, Marie Therese, Verzijden, Timo, Schmid, Matthias, THEE, Eric F., Colijn, Johanna M., Delcourt, Cécile, Cougnard-Gregoire, Audrey, MERLE, Benedicte M. J., KOROBELNIK, Jean Francois, Gopinath, Bamini, Mitchell, Paul, ELBAZ, Hisham, SCHUSTER, Alexander K., Wild, Philipp S., BRANDL, Caroline, STARK, Klaus J., Heid, Iris M., Gunther, Felix, Peters, Annette, KLAVER, Caroline C. W., FINGER, Robert P., EUROPEAN EYE EPIDEMIOLOGY, Consortium, Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), Ophthalmology, and Epidemiology
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Adult ,medicine.medical_specialty ,genetic structures ,Population ,Physical activity ,Sensory disorders Donders Center for Medical Neuroscience [Radboudumc 12] ,Cohort Studies ,03 medical and health sciences ,Macular Degeneration ,0302 clinical medicine ,SDG 3 - Good Health and Well-being ,Risk Factors ,Internal medicine ,Age related ,medicine ,Humans ,Longitudinal Studies ,Risk factor ,education ,Exercise ,Aged ,education.field_of_study ,business.industry ,Incidence (epidemiology) ,Incidence ,Hazard ratio ,Macular degeneration ,Middle Aged ,medicine.disease ,eye diseases ,3. Good health ,Ophthalmology ,030221 ophthalmology & optometry ,Disease Progression ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,sense organs ,business ,030217 neurology & neurosurgery ,Cohort study ,Follow-Up Studies - Abstract
Contains fulltext : 249581.pdf (Publisher’s version ) (Closed access) PURPOSE: To investigate the impact of physical activity (PA) on the incidence or progression of age-related macular degeneration (AMD) in the general population. DESIGN: Meta-analysis of longitudinal cohort studies. METHODS: We included 14,630 adults with no or early AMD at baseline from 7 population-based studies and examined associations of PA with AMD incidence and progression using multistate models (MSM) per study and subsequent random effects meta-analysis. Age effects were assessed using meta-regression. The main outcome measure was the hazard ratio (HR) for incident early or progression to late AMD. RESULTS: At baseline, mean age was 60.7 ± 6.9 to 76.4 ± 4.3 years, and prevalence of early AMD was 7.7% (range, 3.6%-16.9%) between cohorts. During follow-up, 1461 and 189 events occurred for early and late AMD, respectively. In meta-analyses, no or low to moderate PA (high PA as reference) was associated with an increased risk for incident early AMD (HR, 1.19; 95% CI, 1.01-1.40; P = .04), but not for late AMD. In subsequent meta-regression, we found no association of age with the effect of PA on incident AMD. CONCLUSIONS: Our study suggests high levels of PA to be protective for the development of early AMD across several population-based cohort studies. Our results establish PA as a modifiable risk factor for AMD and inform further AMD prevention strategies to reduce its public health impact. 01 april 2022
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- 2022
4. Additional file 3 of Childhood glaucoma registry in Germany: initial database, clinical care and research (pilot study)
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Aghayeva, Fidan A., Schuster, Alexander K., Diel, Heidi, Chronopoulos, Panagiotis, Wagner, Felix M., Grehn, Franz, Pirlich, Nina, Schweiger, Susann, Pfeiffer, Norbert, and Hoffmann, Esther M.
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genetic structures ,sense organs ,eye diseases - Abstract
Additional file 3: Figure S3. Extended general anesthesia examination form (extended GAEF). PHPV = Persistent hyperplastic primary vitreous; ROP = Retinopathy of prematurity; FEVR = Familial exudative vitreoretinopathy.
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- 2022
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5. Additional file 4 of Childhood glaucoma registry in Germany: initial database, clinical care and research (pilot study)
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Aghayeva, Fidan A., Schuster, Alexander K., Diel, Heidi, Chronopoulos, Panagiotis, Wagner, Felix M., Grehn, Franz, Pirlich, Nina, Schweiger, Susann, Pfeiffer, Norbert, and Hoffmann, Esther M.
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genetic structures ,eye diseases - Abstract
Additional file 4: Table S1. Causes and genetic data of secondary childhood glaucoma in Germany.
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- 2022
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6. Prevalence and new onset of depression and anxiety among participants with AMD in a European cohort
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Peto, Tunde, Rezapour, Jasmin, Schuster, Alexander K., Nickels, Stefan, Korb, Christina A., Elbaz, Hisham, Michal, Matthias, Münzel, Thomas, Wild, Philipp S., König, Jochem, Lackner, Karl, Schulz, Andreas, Pfeiffer, Norbert, and Beutel, Manfred E.
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genetic structures ,sense organs ,eye diseases - Abstract
To investigate the prevalence and new onset of depression and anxiety among subjects with age-related macular degeneration (AMD) and its association with AMD in a large European cohort with relatively good visual acuity. 11,834 participants enrolled in the German population-based Gutenberg Health Study were studied. AMD was diagnosed by grading of fundus photographs. Depression and anxiety were assessed with the Patient Health Questionnaire and the Generalized Anxiety Disorder-2 Scale, respectively. Logistic regression analyses were performed and adjusted for several parameters. 1,089 (9.2%) participants were diagnosed having AMD. Prevalence of depression in AMD and non-AMD participants was 7.2% and 8.0%, respectively and prevalence of anxiety was 4.2% and 7.0%, respectively. New onset of depression and anxiety at 5-year follow-up in AMD subjects was 2.6% and 3.6%, respectively. AMD was not associated with depression (OR 0.93; CI 95% 0.70–1.20; p = 0.62). AMD was associated with less anxiety (OR 0.67; CI 95% 0.47–0.93; p = 0.02). This is the first study analyzing both prevalence and new onset of depression and anxiety in AMD subjects. AMD- and non-AMD participants had a similar prevalence and new onset of depression in our population-based sample. Participants without AMD had a higher prevalence of anxiety. AMD was not associated with depression.
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- 2020
7. Prevalence and new onset of depression and anxiety among participants with AMD in a European cohort
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Rezapour, Jasmin, Schuster, Alexander K., Nickels, Stefan, Korb, Christina A., Elbaz, Hisham, Peto, Tunde, Michal, Matthias, Münzel, Thomas, Wild, Philipp S., König, Jochem, Lackner, Karl, Schulz, Andreas, Pfeiffer, Norbert, and Beutel, Manfred E.
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Adult ,Male ,genetic structures ,Epidemiology ,Science ,610 Medizin ,Anxiety ,Article ,Cohort Studies ,610 Medical sciences ,Germany ,Surveys and Questionnaires ,Prevalence ,Humans ,Aged ,Depression ,Macular degeneration ,Middle Aged ,Anxiety Disorders ,eye diseases ,Europe ,Medicine ,Female ,sense organs ,Negative Results ,Follow-Up Studies - Abstract
To investigate the prevalence and new onset of depression and anxiety among subjects with age-related macular degeneration (AMD) and its association with AMD in a large European cohort with relatively good visual acuity. 11,834 participants enrolled in the German population-based Gutenberg Health Study were studied. AMD was diagnosed by grading of fundus photographs. Depression and anxiety were assessed with the Patient Health Questionnaire and the Generalized Anxiety Disorder-2 Scale, respectively. Logistic regression analyses were performed and adjusted for several parameters. 1,089 (9.2%) participants were diagnosed having AMD. Prevalence of depression in AMD and non-AMD participants was 7.2% and 8.0%, respectively and prevalence of anxiety was 4.2% and 7.0%, respectively. New onset of depression and anxiety at 5-year follow-up in AMD subjects was 2.6% and 3.6%, respectively. AMD was not associated with depression (OR 0.93; CI 95% 0.70–1.20; p = 0.62). AMD was associated with less anxiety (OR 0.67; CI 95% 0.47–0.93; p = 0.02). This is the first study analyzing both prevalence and new onset of depression and anxiety in AMD subjects. AMD- and non-AMD participants had a similar prevalence and new onset of depression in our population-based sample. Participants without AMD had a higher prevalence of anxiety. AMD was not associated with depression.
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- 2020
8. Prevalence of depression and anxiety among participants with glaucoma in a population-based cohort study: The Gutenberg Health Study
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Rezapour, J., Nickels, S., Schuster, A. K., Michal, M., Münzel, T., Wild, P. S., Schmidtmann, I., Lackner, K., Schulz, A., Pfeiffer, N., and Beutel, M. E.
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Adult ,Male ,genetic structures ,610 Medizin ,Anxiety ,Cohort Studies ,European cohort ,lcsh:Ophthalmology ,610 Medical sciences ,Germany ,Prevalence ,Humans ,Aged ,Depressive Disorder ,Depression ,Glaucoma ,Middle Aged ,Anxiety Disorders ,eye diseases ,Cross-Sectional Studies ,Logistic Models ,Population-based cohort study ,lcsh:RE1-994 ,Female ,sense organs ,Research Article - Abstract
Background To investigate the prevalence of depression and anxiety among subjects with self-reported glaucoma and the association between self-reported glaucoma and depression respectively anxiety in a European cohort. Methods A study sample of 14,657 participants aged 35 to 74 years was investigated in a population-based cohort study. All participants reported presence or absence of glaucoma. Ophthalmological examinations were carried out in all participants and demographic and disease related information were obtained by interview. Depression was assessed with the Patient Health Questionnaire (PHQ-9), and generalized anxiety with the two screening items (GAD-2) of the short form of the GAD-7 (Generalized Anxiety Disorder-7 Scale). Prevalence of depression and generalized anxiety were investigated for subjects with and without self-reported glaucoma. Logistic regression analyses with depression, respectively anxiety as dependent variable and self-reported glaucoma as independent variable were conducted and adjusted for socio-demographic factors, systemic comorbidities (arterial hypertension, myocardial infarction, stroke, diabetes mellitus, chronic obstructive pulmonary disease, cancer), ocular diseases (cataract, macular degeneration, corneal diseases, diabetic retinopathy), visual acuity, intraocular pressure, antiglaucoma eye drops (sympathomimetics, parasympathomimetics, carbonic anhydrase inhibitors, beta-blockers, prostaglandins) and general health status. Results 293 participants (49.5% female) reported having glaucoma. Prevalence of depression among participants with and without self-reported glaucoma was 6.6% (95%-CI 4.1–10.3) respectively 7.7% (95%-CI 7.3–8.2), and for anxiety 5.3% (95%-CI 3.1–8.7) respectively 6.6% (95%-CI 6.2–7.1). Glaucoma was not associated with depression (Odds ratio 1.10, 95%-CI 0.50–2.38, p = 0.80) or anxiety (1.48, 95%-CI 0.63–3.30, p = 0.35) after adjustment for socio-demographic factors, ocular/systemic diseases, ocular parameters, antiglaucoma drugs and general health status. A restriction to self-reported glaucoma cases either taking topical antiglaucoma medications or having a history of glaucoma surgery did not alter the result. Conclusions This is the first study analyzing both depression and anxiety among glaucoma patients in a European cohort. Subjects with and without self-reported glaucoma had a similar prevalence of depression and anxiety in our population-based sample. Self-reported glaucoma was not associated with depression or anxiety. A lack of a burden of depressive symptoms may result from recruitment from a population-based sample as compared to previous study groups predominantly recruited from tertiary care hospitals.
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- 2018
9. The National Eye Institute 25-Item Visual Function Questionnaire (NEI VFQ-25) – reference data from the German population-based Gutenberg Health Study (GHS)
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Nickels, Stefan, Schuster, Alexander K., Singer, Susanne, Wild, Philipp, Laubert-Reh, Dagmar, Schulz, Andreas, Finger, Robert P., Michal, Matthias, Beutel, Manfred E., Münzel, Thomas, Lackner, Karl J., and Pfeiffer, Norbert
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genetic structures ,610 Medical sciences ,610 Medizin ,lcsh:R858-859.7 ,lcsh:Computer applications to medicine. Medical informatics ,eye diseases - Abstract
Background To estimate the burden of diseases, it is important to consider patient-reported outcomes including Quality of Life (QoL). The aim of this study is to provide population-based reference data for the National Eye Institute 25-Item Visual Function Questionnaire (NEI VFQ-25), stratified by sex and age. Methods The Gutenberg Health Study (GHS) is a population-based, prospective, observational cohort study in Germany, including 15,010 participants aged between 35 and 74. The baseline examination was conducted between 2007 and 2012. To overcome known shortcomings of the NEI VFQ-25, we calculated the previously proposed visual functioning scale and the socio-emotional scale based on Rasch-transformed person-level data. We present mean values, standard deviations and percentiles for age decades stratified by sex. We used a linear regression model to assess the influence of age, sex, socioeconomic status, distance-corrected visual acuity (better-seeing eye) and the absolute difference in distance-corrected visual acuity of both eyes on vision-related QoL. Results NEI VFQ-25 data are available from 12,231 participants (82%). Both the long-form visual functioning scale (LFVFS) and the long-form socio-emotional scale (LFSES) showed a clear age dependency, with an average LFVFS score of 92.8 for men and 90.5 for women in the youngest age group and 85.7 and 83.4 in the oldest age group, and a LFSES score of 98.3 for men and 98.1 in women in the youngest and 94.7 and 94.5 in the oldest decade. The largest difference was observed between the youngest age group (35–44 years) and the 45–54 years group. Men tended to have slightly higher scores than women. In the multivariable linear regression analysis, age (per 5 years −0.42), female sex (−1.57), worse distance-corrected visual acuity of the better eye (per 0.1 increase in logMAR −2.92) and the difference between both eyes (per 0.1 increase in logMAR −0.87) were associated with a reduced LFVFS score (all p
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- 2017
10. Five-year cumulative incidence and progression of age-related macular degeneration: results from the German population-based Gutenberg Health Study (GHS).
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Korb, Christina A., Elbaz, Hisham, Schuster, Alexander K., Nickels, Stefan, Ponto, Katharina A., Schulz, Andreas, Wild, Philipp S., Münzel, Thomas, Beutel, Manfred E., Schmidtmann, Irene, Lackner, Karl J., Peto, Tunde, and Pfeiffer, Norbert
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MACULAR degeneration ,POISSON regression ,AGE groups ,EYE diseases ,VISION disorders ,DISEASE progression - Abstract
Purpose: Age-related macular degeneration (AMD) is a major cause of visual impairment and blindness. This study evaluates the incidence and progression of AMD in a large German cohort. Methods: The Gutenberg Health Study (GHS) is a population-based, prospective, observational cohort study in Germany that includes 15,010 participants between 35 and 74 years of age. The baseline examination, including fundus photography, was conducted between 2007 and 2012, and the 5-year follow-up examination was performed between 2012 and 2017. AMD grading of fundus photographs was performed according to the Rotterdam Eye Study classification. The 5-year cumulative incidence and progression of AMD were calculated. Poisson regression analysis was conducted to investigate factors associated with the cumulative incidence and progression of AMD. Results: Six-thousand-eight-hundred-eighty-eight participants (49.8%, n = 3427 female) were included in the analysis. AMD prevalence was 8.5% [95% CI: 7.9–9.2%] at baseline and 10.3% [95% CI: 9.6–11.1%] at follow-up. The cumulative 5-year-incidence was 2.0% [1.7–2.4%]. AMD progression within 5 years was seen in 18.1% [95% CI: 15.1–21.5%] of the participants. AMD incidence and AMD progression were associated with higher age, for each 10-year increase in age, the risk of AMD doubles (RR = 2.30), and the risk of progression of the disease is increased by 1.6. while AMD incidence also with pseudophakic status. Conclusions: In summary, this population-based sample provides substantial epidemiologic data from a large German cohort, including data on progression and cumulative incidence of macular degeneration in younger age groups. AMD progression over 5 years is common in the German population, 18.1% of subjects with AMD showed progression in at least one eye in this time frame and is associated with higher age. Nevertheless, although usually defined to occur over the age of 50, in this cohort AMD occurred in 0.5% and AMD progression occurred in 5.4% of those already affected in the youngest age group before 50 years of age. [ABSTRACT FROM AUTHOR]
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- 2022
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11. Vision-related quality of life considering both eyes : results from the German population-based Gutenberg Health Study (GHS)
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Nickels, Stefan, Schuster, Alexander K., Elflein, Heike, Wolfram, Christian, Schulz, Andreas, Münzel, Thomas, Beutel, Manfred E., Schmidtmann, Irene, Finger, Robert P., and Pfeiffer, Norbert
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Adult ,Male ,genetic structures ,Research ,Vision Disorders ,Visual Acuity ,610 Medizin ,macromolecular substances ,Middle Aged ,lcsh:Computer applications to medicine. Medical informatics ,eye diseases ,Germany ,Surveys and Questionnaires ,610 Medical sciences ,Quality of Life ,lcsh:R858-859.7 ,Humans ,Regression Analysis ,Female ,Prospective Studies ,Aged - Abstract
Purpose Most definitions of visual impairment focus on the status of the better-seeing eye only, but this approach might underestimate the influence of the worse-seeing eye on the vision-related quality of life (VRQoL). Methods We assessed distance-corrected visual acuity in both eyes and VRQoL using the “National Eye Institute 25-Item Visual Function Questionnaire” (NEI VFQ-25) in the German population-based Gutenberg Health Study. We calculated the Rasch-based visual functioning scale (VFS) and socioemotional scale (SES). We categorized the visual acuity of the better-seeing eye (BE) and worse-seeing eye (WE) as follows: (1) no visual impairment (VI) ( 0.5 logMAR). Next, the subjects were categorized as follows: both eyes with no VI (no/no), the better-seeing eye with no VI and the worse-seeing eye with mild VI (no/mild), no VI/severe VI (no/severe), both eyes with mild VI (mild/mild), light VI/severe VI (mild/severe), and both eyes with severe VI (severe/severe). We calculated the median scores for VFS and SES. We used linear regression to estimate the combined influence of BE/WE on VFS and SES. Results We included 11,941 participants (49.9% female, age range: 35–74 years) with information on VRQoL and visual acuity. The median VFS/SES scores were 90/100 (no/no VI group), 84/97 (no/mild group), 81/94 (no/severe group), 70/90 (mild/mild group), 67/74 (mild/severe group), and 63/76 (severe/severe group). These differences were supported by the regression analysis results. Conclusion Relying on the function of the better-seeing eye considerably underestimates the impact of visual impairment on VRQoL. Electronic supplementary material The online version of this article (10.1186/s12955-019-1158-1) contains supplementary material, which is available to authorized users.
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- 2019
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12. Myopia is associated with education : results from NHANES 1999-2008
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Nickels, Stefan, Hopf, Susanne, Pfeiffer, Norbert, and Schuster, Alexander K.
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Adult ,Male ,genetic structures ,Science ,Ocular Anatomy ,Colleges ,Visual Acuity ,610 Medizin ,Social Sciences ,Graduates ,Refraction, Ocular ,Education ,Cornea ,Young Adult ,Sociology ,Ocular System ,610 Medical sciences ,Medicine and Health Sciences ,Myopia ,Ethnicities ,Humans ,Educational Attainment ,Aged ,Visual Impairments ,Aged, 80 and over ,Schools ,Biology and Life Sciences ,Astigmatism ,Middle Aged ,Nutrition Surveys ,eye diseases ,United States ,Ophthalmology ,Cross-Sectional Studies ,People and Places ,Linear Models ,Medicine ,Eyes ,Educational Status ,Population Groupings ,Female ,Anatomy ,Head ,Research Article - Abstract
PURPOSE:Myopia is increasing worldwide and possibly linked to education. In this study, we analyse the association of myopia and education in the U.S. and investigate its age-dependency. METHODS:We conducted a secondary data analysis using the public use files from the cross-sectional study National Health and Nutrition Examination Survey of the period from 1999 to 2008. 19,756 participants aged 20 to 85 years were included with data on education and ophthalmic parameters (distance visual acuity, objective refraction and keratometry). Spherical equivalent, astigmatism, corneal power and corneal astigmatism were evaluated for an association with education using linear regression analysis with adjustment of potential confounders. RESULTS:Analysis revealed an association between spherical equivalent and educational level in the univariate analysis (P < .001), and in the adjusted model (P < .001). Subjects who attend school to less than 9th grade had a mean spherical equivalent of 0.34 D, subjects with 9-11th grade -0.14 D, subjects that finished high school -0.33 D, subjects with partial college education -0.70 D, subjects that graduated from college or a higher formal education -1.22 D. Subjects that graduated from college or above were -1.47 D more myopic compared to subjects that completed less than 9th grade school in the adjusted analyses. Astigmatism and corneal curvature was not associated with education. CONCLUSIONS:Myopia is associated with higher education in the U.S. Our analysis shows that corneal curvature does not contribute to this association, therefore axial elongation or lens power are likely to contribute to myopia.
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- 2019
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13. Association of Birth Weight with Central and Peripheral Corneal Thickness in Adulthood—Results from the Population-Based German Gutenberg Health Study.
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Fieß, Achim, Urschitz, Michael S., Marx-Groß, Susanne, Nagler, Markus, Wild, Philipp S., Münzel, Thomas, Beutel, Manfred E., Lackner, Karl J., Pfeiffer, Norbert, and Schuster, Alexander K.
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CORNEA measurement ,LOW birth weight ,EYE diseases ,EPIDEMIOLOGY ,FETAL growth retardation ,CHILD patients - Abstract
Purpose: Low birth weight (BW) is associated with altered ocular geometry such as a steeper corneal shape in adulthood. However, it is unclear whether low birth weight affects corneal thickness development in the center or periphery in adulthood which may contribute to ocular disease. The purpose of this study was to investigate corneal thickness in former low birth weight individuals in adulthood. Methods: The German Gutenberg Health Study is a prospective, population-based study in which every participant (age range 40–80 years) was measured with Scheimpflug imaging (Pentacam HR, Oculus Optikgeräte GmbH, Wetzlar, Germany). BW was collected by self-reports. The relationship between birth weight and corneal thickness at different locations were assessed. Linear regression models were carried out including uni- and multivariable analyses with adjustment for age, sex, mean corneal radius, and white-to-white distance. Main outcome measures were corneal thickness at the apex, at the pupil center, and at the corneal periphery. Results: Overall, 5657 participants were successfully measured (3019 females, aged 56.0 ± 10.3 years). In multivariable analyses a lower BW was associated with a thinner corneal thickness at the apex (B = 1.71 µm/500 g, p < 0.001) and at the pupil (B = 1.69 µm/500 g, p < 0.001). These effects diminished towards the corneal periphery resulting in no differences in the perilimbal regions. Conclusion: The present study provides evidence that lower birth weight goes along with corneal thickness alterations even into adult ages of 40 to 80 years. Thinner measurements of the cornea were particularly found in the corneal center and diminished in the periphery. This indicates that there may be fetal origins affecting corneal thickness development particularly in the corneal center. [ABSTRACT FROM AUTHOR]
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- 2021
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14. Referral patterns of children with glaucoma and their caretakers in Northern Tanzania
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Fieß, Achim, Godfrey, Furahini, Schuster, Alexander K, Bowman, Richard, and Philippin, Heiko
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Investigation ,genetic structures ,primary childhood glaucoma ,africa ,lcsh:Ophthalmology ,lcsh:RE1-994 ,referral ,eye diseases ,secondary childhood glaucoma - Abstract
"AIM: To describe the referral patterns of children with primary childhood glaucoma (PCG) or secondary childhood glaucoma (SCG) and their presenting symptoms in Northern Tanzania. METHODS: A retrospective observational study of children 0.48, better eye). Most of the children (60%) and their caretakers presented on their own initiative, while 24% were sent by different general health cadres and 16% by eye care professionals. Buphthalmos was the main symptom mentioned as a trigger for presentation. CONCLUSION: The study shows that most of the children presented late resulting in advanced stages of glaucoma at the time of initiation of treatment. The majority attended the referral eye department on their own initiative with buphthalmos being the most commonly described symptom. Awareness creation among caretakers of children, general health and eye care providers, ideally embedded in general child health promotion activities, is needed to increase and accelerate referrals."
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- 2020
15. Steeper Iris Conicity Is Related to a Shallower Anterior Chamber: The Gutenberg Health Study
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Schuster, Alexander K., Pfeiffer, Norbert, Nickels, Stefan, Schulz, Andreas, Wild, Philipp S., Blettner, Maria, Lackner, Karl, Beutel, Manfred E., Münzel, Thomas, and Vossmerbaeumer, Urs
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Article Subject ,lcsh:Ophthalmology ,genetic structures ,lcsh:RE1-994 ,urogenital system ,610 Medical sciences ,610 Medizin ,sense organs ,urologic and male genital diseases ,eye diseases ,Research Article - Abstract
Purpose. To report the distribution of iris conicity (steepness of the iris cone), investigate associated factors, and test whether pseudophakia allows the iris to sink back. Methods. A population-based cross-sectional study was carried out. Ophthalmological examination including objective refraction, biometry, noncontact tonometry, and Scheimpflug imaging (Pentacam®, Oculus) was performed including automated measurement of iris conicity. 3708 phakic subjects, 144 subjects with bilateral and 39 subjects with unilateral pseudophakia were included. Multivariable analyses were carried out to determine independently associated systemic and ocular factors for iris conicity in phakic eyes. Results. Mean iris conicity was 8.28° ± 3.29° (right eyes). Statistical analysis revealed associations between steeper iris conicity and shallower anterior chamber depth, thicker human lens and higher corneal power in multivariable analysis, while older age was related to a flatter iris conicity. Refraction, axial length, central corneal thickness, pupil diameter, and intraocular pressure were not associated with iris conicity. Pseudophakia resulted in a 5.82° flatter iris conicity than in the fellow phakic eyes. Conclusions. Associations indicate a correlation between iris conicity with risk factors for angle-closure, namely, shallower anterior chamber depth and thicker human lens. In pseudophakic eyes, iris conicity is significantly lower, indicating that cataract surgery flattens the iris.
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- 2017
16. Association of birth weight with corneal power in early adolescence: Results from the National Health and Nutrition Examination Survey (NHANES) 1999–2008
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Fieß, Achim, Schuster, Alexander K., Pfeiffer, Norbert, and Nickels, Stefan
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Male ,genetic structures ,Physiology ,Vision ,610 Medizin ,Visual Acuity ,lcsh:Medicine ,Social Sciences ,Adolescents ,Cornea ,Families ,Mathematical and Statistical Techniques ,610 Medical sciences ,Medicine and Health Sciences ,Psychology ,Ethnicities ,Birth Weight ,lcsh:Science ,Child ,Children ,Age Factors ,Physiological Parameters ,Child, Preschool ,Physical Sciences ,Regression Analysis ,Sensory Perception ,Female ,Anatomy ,Infants ,Statistics (Mathematics) ,Research Article ,Adolescent ,Ocular Anatomy ,Linear Regression Analysis ,Research and Analysis Methods ,Refraction, Ocular ,Sex Factors ,Ocular System ,Humans ,Statistical Methods ,Vision, Ocular ,Nutrition ,lcsh:R ,Body Weight ,Infant, Newborn ,Biology and Life Sciences ,Astigmatism ,Infant ,Correction ,eye diseases ,United States ,Age Groups ,People and Places ,lcsh:Q ,Population Groupings ,Mathematics ,Neuroscience ,Follow-Up Studies - Abstract
PURPOSE:To analyze the effect of birth weight on ocular morphology, refraction and visual function in early adolescents aged 12-15 years. MATERIAL AND METHODS:We conducted a secondary data analysis using the public use files from the National Health and Nutrition Examination Survey of the period from 1999 to 2008. Study participants aged 12 to 15 years were included with data on birth weight and ophthalmic parameters including presenting distance visual acuity, objective refraction and keratometry. Visual acuity, sphere, astigmatism in power vectors J0 and J45, corneal power and corneal astigmatism were evaluated for an association with birth weight. Linear and logistic regression with adjustment for age, sex, ethnicity, survey cycle and birth weight as independent variable were calculated. RESULTS:Linear regression analysis revealed an association between corneal power and birth weight (per 100g: beta = -0.04, p
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- 2017
17. Association of ocular, cardiovascular, morphometric and lifestyle parameters with retinal nerve fibre layer thickness.
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Lamparter, Julia, Schmidtmann, Irene, Schuster, Alexander K., Siouli, Angeliki, Wasielica-Poslednik, Joanna, Mirshahi, Alireza, Höhn, René, Unterrainer, Josef, Wild, Philipp S., Binder, Harald, Lackner, Karl, Beutel, Manfred E., Münzel, Thomas, Pfeiffer, Norbert, and Hoffmann, Esther M.
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MORPHOMETRICS ,GLAUCOMA ,NEURODEGENERATION ,RETINA ,CARDIOVASCULAR system - Abstract
Background: Glaucoma is a neurodegenerative disease, leading to thinning of the retinal nerve fibre layer (RNFL). The exact influence of ocular, cardiovascular, morphometric, lifestyle and cognitive factors on RNFL thickness (RNFLT) is unknown and was analysed in a subgroup of the Gutenberg Health Study (GHS). Methods: Global peripapillary RNFLT was measured in 3224 eyes of 1973 subjects (49% female) using spectral-domain optical coherence tomography (SD-OCT). The association of age, sex, ocular, cardiovascular, morphometric, lifestyle and cognitive factors on RNFLT was analysed using Pearson correlation coefficient and fitting a linear mixed model. Results: In the univariable analysis highest correlations were found for axial length (r = -0.27), spherical equivalent (r = 0.24), and glaucoma (r = -0.15) (p<0.0001, respectively). Other significant correlations with RNFLT were found for age, sex, intraocular pressure, systemic hypertension and systolic blood pressure, previous eye surgery, cholesterol, homocysteine, history of coronary artery disease, history of myocardial infarction, apnoea, diabetes and alcohol intake, p<0.05, respectively. Body length, body weight, BMI, diastolic blood pressure, blood glucose, HbA1c, history of apoplexy, cognitive function, peripheral artery disease, tinnitus, migraine, nicotine intake, central corneal thickness, and pseudophakia were not significantly correlated with RNFLT. The regression model revealed a significant relationship between RNFLT and age in decades (p<0.02), spherical equivalent (p<0.0001), axial length (p<0.0001), glaucoma (p<0.0001), tinnitus (p = 0.04), apnoea (p = 0.047), homocysteine (p = 0.05) and alcohol intake >10g/d for women and >20g/d for men (p = 0.02). Glaucoma, apnoea, higher homocysteine, higher alcohol intake and higher axial length as well as age were related to decreased RNFLT while higher spherical equivalent or history for tinnitus were related to thicker RNFL. Conclusion: RNFLT is related to age, ocular parameters and lifestyle factors. Considering these parameters in normative databases could improve the evaluation of peripapillary RNFLT. It is necessary to evaluate if a reduction of alcohol intake as well as the therapy of apnea or high homocysteine levels could positively influence RNFLT. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
18. The Importance of Visual Health--A Representative Population Survey.
- Author
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Fink, David J., Terheyden, Jan H., Berger, Moritz, Holz, Frank G., Pfeiffer, Norbert, Schuster, Alexander K., and Finger, Robert P.
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DEMOGRAPHIC surveys ,VISION ,MACULAR degeneration ,SURVEYS ,BLINDNESS ,EYE diseases ,VISION disorders ,DISEASES ,TASTE disorders ,PEOPLE with visual disabilities ,SMELL - Abstract
The article discusses a representative survey designed to understand the importance of visual health in Germany. Topics discussed include the main questions asked to the participants, blindness as the worst possible sensory loss, diseases that were the most feared and visual impairments being more common among respondents with low household incomes.
- Published
- 2022
- Full Text
- View/download PDF
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