SIGNIFICANCE:The investigation of peripheral refraction profiles in Indian myopes showed relative peripheral hyperopic refraction in temporal retina and possible dominant role of hyperopic defocus signals from temporal retina in the development of myopia. PURPOSE:Considering that the peripheral refraction profiles were extensively reported to be associated with the central refractive error and vary among different ethnicities, we investigated the peripheral refraction profiles in Indians.METHODS: A total of 161 participants aged between 18 and 33 years were included in the study. All of the eligible participants underwent a comprehensive eye examination. Central and peripheral refractions were determined using an open-field autorefractor in 10°intervals up to ±30°in the horizontal meridian, and in 5°intervals up to ±15°in the vertical meridian. Axial length and central corneal radius were measured using a non-contact optical biometer. Peripheral refraction was compared between the different refractive error groups and myopic subgroups.RESULTS: Myopes showed a significant asymmetrical peripheral refraction profile along horizontal meridian with relative peripheral myopia at nasal 30°and relative peripheral hyperopia at temporal 30°(mean ± standard error at N30°: −0.37 ± 0.13 D vs. T30°: +0.56 ± 0.11 D, P < .05). Emmetropes and hyperopes showed relative peripheral myopia both in nasal and temporal eccentricities. Relative peripheral refraction was significantly different between the refractive groups and myopic subgroups along the temporal retinal eccentricities only (P < .05). Along the vertical meridian, relative peripheral myopia was seen among the three refractive error groups (P < .05). J 0 and J 45 significantly changed with retinal eccentricity along both the meridians in all the refractive error groups (P < .05).CONCLUSIONS: Myopes showed an asymmetric type of peripheral refraction with relative hyperopic defocus in temporal retina and myopic defocus in the nasal retina. Possible role of retinal hyperopic defocus along temporal retina in myopiogenesis needs to be explored.
Purpose: To report the barriers for seeking eye care among the elderly population aged ≥60 years with avoidable vision impairment (VI) in the South Indian state of Telangana. Methods: A total of 3640 participants aged ≥60 years were recruited using cluster-random sampling. Demographic information, including presenting visual acuity, was measured using the standard Rapid Assessment of Visual Impairment (RAVI) protocol. “Avoidable VI” was considered if the VI was due to cataract or uncorrected refractive error (URE). A detailed interview was conducted using a validated questionnaire to report the barriers for not seeking eye care. Data were analyzed using the Stata statistical software version 14. Results: Prevalence of avoidable VI was 30.2% (95% CI: 28.02–31.06; n = 1102). Among those who noticed decreased vision (n = 1074), only 392 participants (36.4%) reported that they felt the need for seeking eye care. The major barriers for not seeking eye care were: cannot afford the consultation fee and services (42.0%) and no escort (25.7%). Overall, the personal barriers (57.9%) were the major reason for not seeking care, followed by economic barriers (42.0%). No significant difference was reported in barriers between the participants with unilateral and bilateral VI (>0.05). Conclusion: Overall, among the elderly people, personal and economic barriers were the major reason for not seeking eye care. Health care providers and policymakers should focus on newer models of eye care delivery to ensure better accessibility and uptake of care by the elderly people.
Purpose: This study was conducted to report on the pattern of spectacles use and compliance among the elderly (aged ≥60 years) in homes for the aged in Hyderabad region in Telangana State, India. Methods: Participants were recruited from 41 homes for the aged centres for comprehensive eye health assessments. A questionnaire was used to collect information on current and past use of spectacles, type of spectacles, spectacles provider and amount paid for the spectacles. For those that reported using spectacles in the past, information was collected on the reasons for their discontinuation. Compliance with spectacles use was assessed after eight months of provision of the spectacles. Results: A total of 1182/1513 participants were examined from 41 homes for the aged in Hyderabad, India. The mean age of the participants examined was 75 years (standard deviation (SD): 8.8 years; range: 60–108 years); 764 (64.6%) of them were women and 240 participants (20.3%) had no formal education. The prevalence of spectacles use was 69.9% (95% confidence interval [CI]: 67.1–72.4; n = 825). Bifocals were the most commonly used type of spectacles (86.7%) followed by single vision glasses for distance vision (7.4%). Private eye clinics were the largest service provider (85.5%) followed by local optical outlets (6.9%) and other service providers (7.7%). The prevalence of spectacles compliance was 81.5% (211/259). Conclusion: Use of spectacles and compliance are high among the elderly living in residential care homes in the Hyderabad region. Spectacles use can be further improved by periodic eye assessments along the lines similar to school eye programs, which can immensely benefit this vulnerable, aged population.
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