Detection of Subclinical Corneal Ectasia after Laser in Situ Keratomileusis: Corvis ST

Abstract

Described herein are the cases of 2 patients who underwent bilateral femtosecond-assisted laser in situ keratomileusis (FS LASIK) surgery and subsequently developed unilateral postLASIK ectasia. The fellow eye of both patients was topographically normal, their visual acuity was 20/20, and the patients had no visual symptoms. However, a biomechanical assessment using the Corvis ST tonometer (Oculus Optikgerate GmbH; Wetzlar, Germany) revealed remarkable weakness not only in the ectatic eyes, but also in the fellow eye. Arrangements were made to perform corneal crosslinking for the eyes with manifest ectasia and close follow-up of the fellow eyes.

The Importance of Using CBI-LVC for Detecting Ectasia in Post-Refractive Eyes

“…We have read the article by Yilmaz et al with great interest ( 1 ). The study aimed to detect subclinical ectasia in the fellow eye of two patients who underwent femtosecond-assisted laser in situ keratomileusis surgery (FS LASIK) and developed post-LASIK clinical and topographical ectasia in the other eye, using the Corvis ST tonometer.…”