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May 28, 2005
Intracorneal Hydrogel Lenses and Corneal Aberrations
JOURNAL OF REFRACTIVE SURGERY Vol. 21 No. 3 May/June 2005
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.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. [J Refract Surg. 2005;21:247-252.]
Posted by mehdi khanlari at May 28, 2005 11:43 PM