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701 results on '"Yekta, Abbasali"'

18. Ocular Biometric and Optical Coherence Tomography Parameters in Former Preterm Children: A Cohort Study.

Author

Najjaran, Marzieh, Zarei-Ghanavati, Siamak, Ostadimoghaddam, Hadi, Yekta, Abbasali, Shoeibi, Nasser, Hemmati, Armin, Abrishami, Mojtaba, Akhlaghi, Saeed, Ziaei, Mohammed, and Cagini, Carlo

Subjects
EYE, OPTICAL coherence tomography, PREMATURE infants, BEVACIZUMAB, BIOMETRY, DESCRIPTIVE statistics, RETROSPECTIVE studies, LONGITUDINAL method, MEDICAL records, ACQUISITION of data, GESTATIONAL age, COMPARATIVE studies, VISUAL acuity, RETROLENTAL fibroplasia, CHILDREN
Abstract

Purpose. To compare biometric and optical coherence tomography parameters as well as refractive status in preterm children aged 4–8 years with or without retinopathy of prematurity (ROP), and evaluate their correlations with age and gender‐matched full‐term children. Methods. Retrospective comparative cohort study of four groups of children. Children with a history of preterm birth, including ROP who received intravitreal bevacizumab (IVB) treatment, children with a history of ROP that regressed without treatment and those with no history of ROP were compared to age and gender‐matched full‐term children as a control group. Best corrected visual acuity (BCVA), spherical equivalent of refraction (SE), macular and choroidal thickness, as well as biometric parameters was measured. Results. A total of 120 eyes of 120 children (30 children in each group) were included. There was no significant difference in BCVA, SE, and subjective cylinder between groups (p = 0.05, p = 0.3, p = 0.6, respectively). Axial length was significantly shorter, and the cornea was steeper in both ROP groups than in other groups (p = 0.001, p < 0.001, respectively). The central macular thickness was significantly thicker in the treated, regressed ROP and preterm groups than in full‐term children (p < 0.001). The gestational age was negatively correlated with macular thickness in both treated and regressed ROP groups (r = −0.517; p = 0.003, r = − 0.490; p = 0.006, respectively). Conclusions. Children with a history of ROP had a shorter axial length, steeper cornea, and thicker macula that correlated with lower gestational age. [ABSTRACT FROM AUTHOR]

Published
2024
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19. The association between ocular biometric components and corneal aberrations.

Author

Hashemi, Hassan, Mesbahi, Shima, Jamali, Alireza, Ostadimoghaddam, Hadi, Yekta, Abbasali, and Khabazkhoob, Mehdi

Abstract

Evaluating factors affecting corneal higher-order aberration component has a very important role in interpreting the characteristics of the formed image on the retina. To determine the relationship between ocular biometric components and corneal higher-order aberrations in an elderly population. This report is related to a subsample of the Tehran Geriatric Eye study (TGES), a population-based cross-sectional study that was conducted on individuals aged 60 years and above in Tehran city, Iran using multistage stratified random cluster sampling. All study participants underwent ocular examinations including visual acuity measurement, refraction and slit-lamp biomicroscopy. Anterior segment imaging and corneal aberrometry were performed using Pentacam AXL. In the present study, 644 eyes of 415 individuals (56.9% female) with mean age of 66.36 ± 4.70 years were evaluated. According to a multiple generalised estimating equation model, the root mean square of total higher-order aberrations was related to age (β = 0.081, p = 0.002), crystalline lens thickness (β = 0.08, p < 0.001), and corneal diameter (β = -0.04, p = 0.014). The root mean square of total coma aberration was directly related to the female sex (β = 0.02, p = 0.05), and crystalline lens thickness (β = 0.06, p < 0.001). There was a direct relationship between the root mean square of third- and fourth-order higher-order aberrations and crystalline lens thickness (p < 0.001). Spherical aberration was directly related to the male sex (β = -0.02, p = 0.004), axial length (β = 0.05, p < 0.001) and central corneal thickness (β = 0.001, p = 0.025), and was inversely related to anterior chamber depth (β = -0.07, p = 0.031) and crystalline lens thickness (β = -0.25, p < 0.001). Ocular biometric components are related to corneal aberrations in the elderly. These factors need to be considered in respect of medical and surgical procedures required for the elderly. [ABSTRACT FROM AUTHOR]

Published
2024
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