Intracorneal hydrogel lenses and corneal aberrations.

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.