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Martha Jaimes, Zoraida Espinosa-Mattar, Diana Álvarez-Melloni, Fiona Xacur-García, Enrique Graue-Hernández, Tito Ramirez-Luquín, Alejandro Navas; Toric Intraocular Lens Implantation in Keratoconus. Invest. Ophthalmol. Vis. Sci. 2011;52(14):5770.
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© ARVO (1962-2015); The Authors (2016-present)
To report the clinical characteristics and surgical outcome of patients with keratoconus treated with implantation of in the bag toric intraocular lens.
Retrospective review of medical records from patients diagnosed with keratoconus treated with in the bag toric single piece hydrophobic acrylic intraocular lens implantation. Age, preoperative and postoperative UCVA (uncorrected visual acuity) and BSCVA (best spectacle corrected visual acuity), objective and subjective refraction, spherical equivalent, total keratometric power, total astigmatism, axis, toric IOL model and power were analyzed. Statistical analysis was performed using the Stata 8 software using descriptive statistics and paired T test.
14 eyes of 11 patients. 10 with topographic diagnosis of keratoconus and 1 diagnosed as pellucid marginal degeneration were evaluated. The toric intraocular lens models used were T3 to T9. Follow-up was 3 months to 2 years. The mean age of the patients was 47.5±6.68 years (40-64 years). Mean preop sphere was -3.78±6.8 (+1 to -13.25) and the postop sphere was 0.295±1.01 (+2.5 to -1.12), p=0.03. The preop cylinder was -3.69±1.3 (-2 to -5) and the postop cylinder was -1.16±1.16 (-0.25 to -5) p<0.001. The mean preop spherical equivalent was -5.23±6.58 (+4.5 to -15.4) and the postop spherical equivalent was -0.29±0.98 (+2 to -1.35) p=0.008. The preop mean visual acuity without spectacle correction was 1.28±0.33 (mean 20/380 Snellen, 2 to 1 logMar) and the postop uncorrected visual acuity was 0.27±0.25 (mean 20/37 Snellen, 1 - 0 logMar) with a p value of <0.001.
Toric hydrophobic acrylic single piece intraocular lens implantation is a relatively new and effective therapeutic option in the optical rehabilitation of patients with stable and non progressive keratoconus.
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