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Refractive stability in patients with keratoconus and posterior chamber toric lens implantation after phacoemulsification

Poster Details

First Author: E.Fernandez MEXICO

Co Author(s):    L. Tapia   J. Ozorno           

Abstract Details


To evaluate refractive results and stability in patients with keratoconus and toric lens implantation after phacoemulsification.


Patients with cataract and keratoconus are currently treated by phacoemulsification and aspheric or spheric lens implantation. After surgery, visual acuity results are poor because of persisting high corneal astigmatism, requiring contact lenses to compensate. Toric posterior chamber lenses have given adequate refractive results in patients with regular astigmatism after phacoemulsification surgery. We supposed that patients with keratoconus may have reduction in refractive astigmatism resulting in better visual acuity.


Eyes with cataract and keratoconus were evaluated for corneal astigmatism stability by Orbscan topography during one year. Phacoemulsification with toric hydrophobic lens implantation was performed. Visual acuity and refractive astigmatism were evaluated 1 month, 6 months and 1 year after.


Twenty eyes of 15 patients undergone phacoemulsification and toric hydrophobic lens implantation. Mean age was 55+- 8 years. Previos to surgery, mean visual acuity was 20/200 and mean refractive astigmatism was -4.0 diopters. One month after surgery mean visual acuity was 20/40; 6 months after was 20/25 and at 1 year 20/25.


Toric lens implantation after phacoemulsification in eyes with keratoconus and cataract, result in refractive stability at 6 months and 1 year after the procedure, giving an adequate option to treat not only cataract but also astigmatism in this group of patients.

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