ArticleClinical optometry2023
Understanding Presbyopia in Asmara: Prevalence, Association with Refractive Error, and Age-Based Addition.
Article in Clinical optometry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Presbyopia is an age-related progressive decrease of near vision, corrected by near addition glasses. These age-appropriate glasses, however, vary across different geographical locations and populations. But there is no existing information on the age-based addition for Asmara and high number of uncorrected presbyopes, so this study determined the required age-based addition for the presbyopes in Asmara. Methods: A cross-sectional study was conducted on patients aged 35-60 years who visited all eye centers in the city. Patients with best-corrected visual acuity in both eyes better than 6/9 were included in the study. Near add was calculated using Monocular Estimation Method (MEM) and amplitude of accommodation results. Data entry and analysis were performed using Statistical Package for the Social Sciences v. 20. Results: This study included 1310 participants of whom 48.5% were females and 51.5% were males. The prevalence of presbyopia was found to be 74.1% out of which 44% were females. There were 35.6% of the participants with a previous prescription for glasses, though only 24% of the participants presented with glasses on. Among the different occupational categories, laborers were the ones who had the highest number of presbyopes (79.5%), office workers (73%), and housewives (68.7%). The mean age of those with presbyopes was 49.5 ± 5.8 years. Multivariable analysis performed for presbyopia showed that older age and female sex were associated with a higher likelihood of presbyopia (<0.005). An addition table was prepared separately for males and females. On post-hoc tests, no significant association was found between the given and the different refractive status. Conclusion: The study showed that there is a high level of uncorrected presbyopes in the city, so the availability of refraction sites and glasses accessibility needs to increase. The near addition demand for this population varies from the previously stated amount in other countries. Therefore, guidelines specifically prepared for a society are necessary.
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