Intracorneal hydrogel lenses and corneal aberrations

J Refract Surg. 2005 May-Jun;21(3):247-52. doi: 10.3928/1081-597X-20050501-07.

Abstract

Purpose: To investigate the optical performance of the cornea based on corneal aberrometry following intracorneal hydrogel lens implantation.

Methods: A retrospective, nonconsecutive, observational study of the anterior corneal surface aberration profile of four hyperopic eyes previously implanted with an intracorneal hydrogel lens were studied by videokeratographic elevation maps before and 6 months after surgery.

Results: Intracorneal hydrogel lenses reduced the optical performance in all four eyes by increasing the spherical aberrations by a mean factor of 1.87 and 1.95, coma aberrations by a mean factor of 2.98 and 3.01, and total higher order aberrations by a mean factor of 2.6 and 2.17 at 3.0-mm and 6.5-mm pupils, respectively (P<.005).

Conclusions: Intracorneal hydrogel lenses decreased the optical performance of the cornea by significantly increasing spherical, coma, and total higher order aberrations.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Corneal Stroma / physiopathology*
  • Corneal Stroma / surgery*
  • Corneal Topography
  • Humans
  • Hydrogel, Polyethylene Glycol Dimethacrylate*
  • Hyperopia / physiopathology
  • Hyperopia / surgery*
  • Lenses, Intraocular*
  • Middle Aged
  • Prosthesis Implantation
  • Refraction, Ocular / physiology
  • Retrospective Studies
  • Visual Acuity / physiology

Substances

  • Hydrogel, Polyethylene Glycol Dimethacrylate