Abstract

study design- Cross Sectional interventional study
purpose- To calculate if there is any difference in axial length, k1 and k2 readings before and after dilatation of pupil in various age groups (14-70 years) using manual and optical biometry.

methods -I have selected 150 patients (300 eyes) who have come to the hospital for routine checkup abiding by the inclusion and exclusion criteria.

IOL Master 500 and BioMedix Echo rule and Appasamy manual keratometer was used to check the axial length, K1, K2 values.
Both eyes were then dilated with Tropicamide (0.8%) + phenylephrine (5%) eye drop, and measurements were recorded.
conclusion- there is a statistically significant difference in the flat and steep keratometry values before and after pupillary dilatation via the manual and optical devices. However, axial length does not seem to get affected.
There is also no statistical difference between the two methods of biomtery-i.e. manual optical for recording the K1,K2 Axial length values.

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