A rule of astigmatism in pediatric subluxated crystalline lens

Abstract

Crystalline lens subluxation leads to refractive error typically resulting in myopic-shift and astigmatism. Retinoscopy is challenging due to phaco/iridodonesis and distorted reflex. This study explored simplified rules of thumb to help determining the correct refraction. We postulated that the expected axis of astigmatism should be parallel to the direction of subluxation.