title: A retrospective analysis of vision correction and safety in keratoconus patients wearing Toris K soft contact lenses.
abstract: The purpose of this study was to investigate the efficacy and safety of the Toris K silicone hydrogel contact lens (SwissLens; Prilly, Switzerland) in keratoconus patients. A database with information on 50 keratoconus patients (64 eyes) fitted with Toris K soft contact lenses over a 2-year period was retrospectively reviewed. Demographic data, prefitting refraction, the reason for choosing the Toris K soft contact lens, uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), best-corrected visual acuity with a rigid gas permeable lens (BCVA RGP), best-corrected visual acuity with the Toris K lens (BCVA Toris K), and complications were evaluated. The mean age ± standard deviation at the time of fitting was 27.92 ± 9.86 years. The mean spherical refractive power was -4.62 ± 6.53 dioptres, and the mean cylinder was -3.78 ± 2.43 dioptres. The most common reason for using Toris K soft contact lenses was an inability to fit the patient with a RGP contact lens. There was a statistically significant difference between UCVA and BCVA Toris K (p = 0.0001), as well as between BSCVA and BCVA Toris K (p = 0.0001). However, there was no statistically significant difference between BCVA Toris K and BCVA RGP (p = 0.20). Superficial punctate keratitis and giant papillary conjunctivitis were the most common complications. The Toris K contact lens is a viable alternative for the optical management of all grades of keratoconus. The Toris K soft contact lens is a promising alternative for the visual rehabilitation of keratoconus patients who cannot tolerate RGP lenses or achieve a good fit.
authors.affiliation: Ophthalmology Department, Cerrahpasa Medical Faculty, Istanbul University, Kocamustafapasa Cd. No: 53 Cerrahpasa, Fatih, 34098, Istanbul, Turkey. orenc_pinar@yahoo.com.|Ophthalmology Department, Istanbul Training and Research Hospital, Kasap Ilyas Mah Org Abdurrahman Nafiz Gurman Cd, PK, Fatih, 34098, Istanbul, Turkey. orenc_pinar@yahoo.com.
authors.forename: Pinar
authors.initials: P
authors.lastname: Sultan
authors.affiliation: Ophthalmology Department, Cerrahpasa Medical Faculty, Istanbul University, Kocamustafapasa Cd. No: 53 Cerrahpasa, Fatih, 34098, Istanbul, Turkey.
authors.forename: Cezmi
authors.initials: C
authors.lastname: Dogan
authors.affiliation: Ophthalmology Department, Cerrahpasa Medical Faculty, Istanbul University, Kocamustafapasa Cd. No: 53 Cerrahpasa, Fatih, 34098, Istanbul, Turkey.
authors.forename: Guzin
authors.initials: G
authors.lastname: Iskeleli
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003263:Contact Lenses, Hydrophilic / Q000009:adverse effects; D003316:Corneal Diseases / Q000209:etiology; D019781:Corneal Topography; D005260:Female; D006801:Humans; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D007640:Keratoconus / Q000150:complications* / Q000534:rehabilitation; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014786:Vision Disorders / Q000209:etiology / Q000534:rehabilitation*; D014792:Visual Acuity; D055815:Young Adult
chemical_list: D020136:Hydrogel, Polyethylene Glycol Dimethacrylate
keywords: Keratoconus; Silicone hydrogel contact lens; Toris K contact lens; Visual rehabilitation