Intracorneal hydrogel lenses and corneal aberrations.
OBJECTIVE
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.
Department of Refractive Surgery, Vissum Instituto Oftalmológico de Alicante and Division of Ophthalmology, Miguel Hernández University, Medical School, Alicante, Spain. jlalio@oftalio.com
Jorge L
JL
Alió
Mohamed Helmy
MH
Shabayek
Robert
R
Montes-Mico
M Emilia
ME
Múlet
Ahmed Galal
AG
Ahmed
Jesús
J
Merayo
D000328:Adult; D003319:Corneal Stroma / Q000503:physiopathology* / Q000601:surgery*; D019781:Corneal Topography; D006801:Humans; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D006956:Hyperopia / Q000503:physiopathology / Q000601:surgery*; D007910:Lenses, Intraocular; D008875:Middle Aged; D019919:Prosthesis Implantation; D012029:Refraction, Ocular / Q000502:physiology; D012189:Retrospective Studies; D014792:Visual Acuity / Q000502:physiology
D020136:Hydrogel, Polyethylene Glycol Dimethacrylate