Analysis of results related to good and bad outcomes of Intacs implantation for keratoconus correction.

摘要: Purpose To evaluate factors influencing good and poor outcomes after intracorneal ring segment implantation to correct keratoconus. Setting Instituto Oftalmologico de Alicante (Vissum Corporation), University of Miguel Hernandez, Alicante, Spain. Methods A retrospective comparative study the visual outcome, 25 eyes 21 patients were implanted segments (Intacs, Addition Technology) as a method Outcomes evaluated 6 months based on results. Group comprised 20 that gained 3 lines or more best spectacle-corrected acuity (BSCVA) keratoconus, B 5 lost 1 line BSCVA. Results In A, preoperative mean BSCVA was 0.43 (20/50) postoperative BSCVA, 0.82 (20/20) ( P ≤.0001). B, 0.36 (20/63) 0.24 (20/80) ≤.02). The sphere power 3.90 diopters (D) greater in than ≤.007); spherical equivalent 4.36 D ≤.007), K-reading 6.91 ≤.001). reduction dioptric 2.11 ≤.027) equivalent, 2.81 ≤.003), significant only A. central K-readings 4.30 ≤.0001) 6.19 ≤.014) B. correlation K value at .01 level by Pearson test (−0.67). all (100%) had ≤53 D. 4 (80%) ≥55 Conclusion Intacs provided better results corneal topography quality significantly reduced with keratoconus relatively low values (≤53 D) equivalent. advanced (mean D), can be anticipated.