Prevalence of corneal astigmatism before cataract surgery in Western Indian Population
| Autor: | P.S. Moulick, Deepak Kalra, M.A. Khan, Alok Sati, Sandeep Gupta, Archana Singh |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
genetic structures business.industry medicine.medical_treatment Indian population Mean age General Medicine Cataract surgery Oblique astigmatism eye diseases Cataract extraction 03 medical and health sciences 0302 clinical medicine Ophthalmology 030221 ophthalmology & optometry Medicine In patient 030212 general & internal medicine business Corneal astigmatism ORIGINAL ARTICLE Dioptre |
| Zdroj: | Medical Journal Armed Forces India. 74:18-21 |
| ISSN: | 0377-1237 |
| DOI: | 10.1016/j.mjafi.2017.02.003 |
| Popis: | 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.Keratometric values were measured in patients before cataract extraction. Descriptive statistics of CA were analysed including the assessment with age ranges.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.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. |
| Databáze: | OpenAIRE |
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