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.
Alió
Jorge L
JL
Department of Refractive Surgery, Vissum Instituto Oftalmológico de Alicante and Division of Ophthalmology, Miguel Hernández University, Medical School, Alicante, Spain. jlalio@oftalio.com
Shabayek
Mohamed Helmy
MH
Montes-Mico
Robert
R
Múlet
M Emilia
ME
Ahmed
Ahmed Galal
AG
Merayo
Jesús
J
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