DR. VIBHA BADRINATH

DR.SHAMIKA GHAISAS, Dr. Sumita Agarkar, Dr. AKSHAY BADAKERE

Abstract

Aim: To compare the predictability of SRK II and Barrett’s Universal II formulae in paediatric eyes and possible effect of axial length, keratometry and age. Methods: Retrospective analysis of children<8 years who underwent cataract surgery with intra ocular lens implantation between September 2018 & July 2019. The prediction error(PE) of SRK II and Barrett’s was calculated & compared. Results:72 eyes of 39 patients were included. In eyes with axial length between 18-21mm the PE(1.37±1.45) for Barrett’s was higher than the PE(-0.06 +/- 0.95) for SRK II but vice-versa for the 21-24mm group. Barrett’s performed better in eyes with a K ≤ 45 D and showed a smaller PE across all age groups, especially in children <2 years and >5 years of age. Overall, Barrett’s formula gave a lower mean PE as compared to SRK II (p <0.05). Conclusion: Barrett’s formula shows predictable outcomes in children <2 years & >5 years of age, in eyes with axial length between 21 mm and 24 mm & with flatter corneas.

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