Corneal Ectasia after Photorefractive Keratectomy for Low Myopia
Received 18 April 2005; accepted 15 November 2005.
Objective
To alert ophthalmologists of the possibility of an aggravation of forme fruste keratoconus after photorefractive keratectomy (PRK).
Design
Clinical case report.
Intervention
Standard bilateral PRK for low myopia.
Main Outcome Measures
Corneal topography, corneal thickness, and visual acuity.
Results
Corneal ectasia occurred bilaterally after PRK. Retrospective analysis of preoperative videokeratography indicated the existence of forme fruste keratoconus on the left eye.
Conclusions
This article is the first case report of a bilateral corneal ectasia after PRK for low myopia. Even if there is no direct proof to demonstrate that PRK has worsened the evolution of keratoconus, the safety of the PRK procedure in forme fruste keratoconus must be considered.
1Ophthalmology Department, Purpan Hospital, Toulouse, France