Prevalence of corneal astigmatism before cataract surgery in Western Indian Population
Journal Title: Medical Journal Armed Forces - Year 2018, Vol 74, Issue 1
Abstract
Background: The prevalence and nature of corneal astigmatism among cataract surgery candidates has not been well-documented in Indian population. The purpose of the study is to analyse prevalence and presentation patterns of corneal astigmatism (CA) in cataract surgery candidates. Methods: Keratometric values were measured in patients before cataract extraction. Descriptive statistics of CA were analysed including the assessment with age ranges. Results: Mean CA of 223 eyes of 223 patients [mean age 61 10 years (range, 29–90 years)] was 0.88 0.61 (95% CI, 0.80–0.96) with 27.8%, 51.1% and 21.1% having with the rule (WTR), against the rule (ATR) and oblique astigmatism (OBL) respectively. Between 40 and 50 years, ATR exceeds WTR and reaches 100% by 80 years. A trend of less negative CA was seen up to 60 years and then increases up to 90 years. CA was below 0.25 dioptre (D) in 17.5% of eyes, between 0.25 and 1.25 D in 63.7% and ≥1.50 D in 18.8% of eyes. Conclusions: Considering CA < 1.25 D in majority of cataract surgery candidates, it is preferable to perform inexpensive keratorefractive procedures rather expensive toric IOLs, especially in developing world.
Authors and Affiliations
P. S. Moulick
Keywords
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- EP ID EP639369
- DOI 10.1016/j.mjafi.2017.02.003
- Views 56
- Downloads 0
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