title: Implantation of a toric poly(methyl methacrylate) intraocular lens to correct high astigmatism.
abstract: A 57-year-old man experienced a decrease in visual function because of cataract formation. Corneal astigmatism was 13.4 diopters (D) because he had had a penetrating keratoplasty 27 years before. Cataract surgery was planned, and biometric data for toric intraocular lens (IOL) implantation were collected for the manufacture of a custom IOL. After phacoemulsification, a toric poly(methyl methacrylate) (PMMA) IOL of +19.0 D spherical and +12.0 D cylindrical power was implanted via a sclerocorneal tunnel incision. Three months postoperatively, corneal astigmatism was 14.3 D and best corrected visual acuity (BCVA), 20/25. Postoperative refraction (+1.5 -3.0 x 90) and BCVA remained stable for 7 months. No significant IOL rotation was observed. Implantation of a toric PMMA IOL corrected high corneal astigmatism. Toric IOL technology with high cylindrical power allows enhancement of IOL surgery.
authors.affiliation: Department of Ophthalmology, Eberhardt Karls-University, Tübingen, Mainz, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Frohn
authors.forename: H B
authors.initials: HB
authors.lastname: Dick
authors.forename: H J
authors.initials: HJ
authors.lastname: Thiel
mesh_terms: D001251:Astigmatism / Q000150:complications / Q000473:pathology / Q000601:surgery*; D002386:Cataract / Q000150:complications; D003315:Cornea / Q000473:pathology / Q000601:surgery*; D019781:Corneal Topography; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D019904:Polymethyl Methacrylate; D012029:Refraction, Ocular; D014792:Visual Acuity
chemical_list: D019904:Polymethyl Methacrylate