Scleral Lens–Induced Corneal Edema After Radial Keratotomy

Abstract:

This case series examines the magnitude and regional variation in scleral lens–induced corneal edema in postradial keratotomy (RK) eyes. Scheimpflug imaging was used to measure corneal thickness across the central 6 mm before and after scleral lens wear in nine post-RK eyes (median age 64 years). Variations in corneal edema were examined as a function of distance from the corneal center (six 0.5-mm annuli) and from 0° to 360°. The median central corneal edema was 2.19% (interquartile range 1.03%–3.18%; P=0.02) and increased in magnitude and variability further from the central cornea (from 1.30% in the central 0–0.5 mm to 3.12% in the 2.5–3.0 mm midperiphery) (P=0.02). Scleral lens–induced corneal edema in post-RK eyes was greater in magnitude further from the corneal center and at the approximate location of corneal incisions.

Source: Eye and Contact Lens: Science and Clinical Practice - September 29, 2021 Category: Opthalmology Tags: Case Report Source Type: research