Scleral lens tolerance after corneal cross-linking for keratoconus

Optom Vis Sci. 2015 Mar;92(3):318-23. doi: 10.1097/OPX.0000000000000515.

Abstract

Purpose: Subjective and objective evaluation of scleral lens tolerance and fitting before and after corneal cross-linking (CXL) for progressive keratoconus.

Methods: In this prospective cohort, evaluations were made of 18 unilateral eyes in patients who underwent CXL and had been wearing scleral lenses before the procedure. All the patients gave informed consent; they were able to cooperate with the study, were eligible for CXL, had been wearing well-fitting scleral lenses for at least 3 months, and had no other active ocular disease. Data were collected before and 1 year after CXL. Outcome measures were changes in clinical and subjective scleral lens performance. The following components were studied: scleral lens corrected distance visual acuity, scleral lens specifications, scleral lens fit, wearing time, and subjective measures on visual analogue scale questionnaires (1 to 100 mm).

Results: There was no significant change in scleral lens corrected distance visual acuity (p = 0.632). Sixty-one percent of eyes needed a scleral lens fit and/or power change. Wearing time (median, 16 hours per day) and subjective tolerance were found to be stable.

Conclusions: Scleral lens tolerance after CXL appeared to be stable.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged, 80 and over
  • Cohort Studies
  • Collagen / metabolism
  • Contact Lenses*
  • Corneal Stroma / metabolism
  • Cross-Linking Reagents*
  • Female
  • Humans
  • Keratoconus / drug therapy
  • Keratoconus / metabolism
  • Keratoconus / therapy*
  • Male
  • Middle Aged
  • Photosensitizing Agents / therapeutic use
  • Prospective Studies
  • Prosthesis Fitting
  • Sclera*
  • Ultraviolet Rays
  • Visual Acuity / physiology
  • Young Adult

Substances

  • Cross-Linking Reagents
  • Photosensitizing Agents
  • Collagen