Toric Lenticule Implantation for Correction of Traumatic Hyperopia and Astigmatism

Abstract

PURPOSE: To describe the preliminary corrective results of treating hyperopia and hyperopic astigmatism with toric lenticule implantation. METHODS: A 23-year-old man presented with corneal scars and aphakia in the right eye. Manifest refraction was +10.00 −1.25 × 165° and plano in the right and left eyes, respectively. Owing to the patient's rigid gas permeable contact lens intolerance and other factors, an allogenic toric lenticule from a donor eye with a refractive power of −8.50 −1.25 × 5° was implanted. The lenticule (refraction = +9.75 −1.25 × 95°) was transferred onto the exposed stromal bed of the recipient's eye and aligned to the marking axis (refraction = +9.75 −1.25 × 165°). The correction index was calculated using the online Alpins Statistical System for Ophthalmic Refractive Surgery Techniques vector calculator. RESULTS: At 6 months postoperatively, refraction of the right eye was +3.00 −0.25 × 160°. Anterior corneal surface curvature and astigmatism changed from 42.90 diopters, 2.30 @ 48.00 to 49.10 diopters, 1.50 @ 90.00. Optical coherence tomography showed smooth attachment of the lenticule to the stromal layer with visible boundaries. CONCLUSIONS: Toric lenticule implantation was beneficial in treating traumatic hyperopia and hyperopic astigmatism. Further studies are required to assess the effectiveness of this technique. [ Journal of Refractive Surgery Case Reports . 2022;2(1):e1–e5.]