Analysis of cataract surgery induced astigmatism: Two polar methods comparison

Conclusion SIA value is independent of the polar method used to its calculation and slight variations in the incision position could be accepted without clinical relevant impact in SIA magnitude. Both methods [Method #1: KP (90)/KP (135) and Method #2: AKP/AKP (+45)] are useful to calculate SIA with superior incisions at 120°.
Source: Journal of Optometry - Category: Opthalmology Source Type: research