A Restrospective Analysis To Identify An Appropriate Formula For Intraocular Lens Power Calculation In Children
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2017, Vol 16, Issue 11
Abstract
Intraocular lens power calculation in children is very much different from that of adults. However, various formulae (SRK T, SRK II, Holladay, Hoffer-Q) which are designed for adults eyes are being used for IOL power calculation in children. Hence we made an attempt to determine the appropriate formula for IOL power calculation in children. A retrospective analysis was conducted over a period of two years among 54 children- 34 boys and 20 girls; aged between 4 and 15 years; a total of 80 eyes (26 bilateral cataract and 28 unilateral cataract)- who were operated for congenital and developmental cataract. The predictive error of <0.5D (not significant) with SRK/T, SRK/II, Holladay-1 and Hoffer-Q formulae were 35%, 32.5%, 37.5% and 40% of eyes respectively. With regard to the ratio of eyes showing least APE according to SRK/T, SRK/II, Holladay-1 and Hoffer-Q formulae were 23.7%, 22.5%, 18.7% and 35% eyes respectively, which reveals that Hoffer-Q formula has the maximum predictive ability for IOL power calculation. But, we found that there is no significant difference between SRK/T, SRK/II, Holladay-1, and Hoffer-Q formulae in IOL power calculation. However from among these, Hoffer-Q formula seems to have an edge over others in arriving at best predictive value.
Authors and Affiliations
Dr. V. Mahathi, Dr. Sai Rani. K, Dr. Gaurav Agarwal
Keywords
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- EP ID EP238234
- DOI 10.9790/0853-1611026164
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