Matthias Fuest1, Marcus Ang2, Hla Myint Htoon3, Donald Tan2, Jodhbir S Mehta4. 1. Singapore Eye Research Institute, Singapore; Department of Ophthalmology, RWTH Aachen University, Aachen, Germany. 2. Singapore Eye Research Institute, Singapore; Singapore National Eye Centre, Singapore; Eye-ACP, Duke-NUS Graduate Medical School, Singapore. 3. Singapore Eye Research Institute, Singapore; Eye-ACP, Duke-NUS Graduate Medical School, Singapore. 4. Singapore Eye Research Institute, Singapore; Singapore National Eye Centre, Singapore; Eye-ACP, Duke-NUS Graduate Medical School, Singapore; School of Material Science and Engineering, Nanyang Technological University, Singapore. Electronic address: jodmehta@gmail.com.
Abstract
PURPOSE: To compare 5-year visual acuity and refraction outcome in Descemet stripping automated endothelial keratoplasty (DSAEK) and penetrating keratoplasty (PK) for Fuchs endothelial dystrophy (FED) or bullous keratopathy (BK) in Asian eyes. DESIGN: Prospective interventional case series. METHODS: We analyzed 828 consecutive cases of DSAEK (423) or PK (405) for FED and BK from the Singapore Cornea Transplant Registry performed from 1991 to 2011. Our main outcome measures were best spectacle-corrected visual acuity (BSCVA) with astigmatism (cylinder) and spherical equivalent (SE) over 5 years of follow-up. RESULTS: Mean age was 67.5 ± 11.5 years (50.1% male, 49.9% female) and majority was Chinese (76.6%, n = 634) in our multiracial Asian population. DSAEK eyes had significantly better BSCVA (P < .001-.037) with lower SE (P < .001-.017) and cylinder (P < .001), independent of surgical indication, compared to PK over 5 years. DSAEK was superior to PK over 5 years (P < .001-.026) in FED, but only over 3 years in BK (P < .001-.031). DSAEK in FED eyes had significantly better BSCVA compared to BK eyes (P = .006 at 4-year follow-up). DSAEKs with preoperative BSCVA < 1.3 logMAR had significantly better visual outcomes than cases with ≥ 1.3 logMAR (P < .001-.042). PKs had significantly higher postoperative refractive correction than DSAEKs, with no significant influence of the surgery indication. CONCLUSIONS: In our study cohort, DSAEK provided significantly better long-term BSCVA and lower astigmatism than PK over 5 years of follow-up. Visual outcomes of DSAEK for FED were better than BK. In some analyses for years 1-3, analysis of covariance adjustment indicated that this DSAEK-associated better long-term BSCVA was independent of better preoperative vision in DSAEK eyes.
PURPOSE: To compare 5-year visual acuity and refraction outcome in Descemet stripping automated endothelial keratoplasty (DSAEK) and penetrating keratoplasty (PK) for Fuchs endothelial dystrophy (FED) or bullous keratopathy (BK) in Asian eyes. DESIGN: Prospective interventional case series. METHODS: We analyzed 828 consecutive cases of DSAEK (423) or PK (405) for FED and BK from the Singapore Cornea Transplant Registry performed from 1991 to 2011. Our main outcome measures were best spectacle-corrected visual acuity (BSCVA) with astigmatism (cylinder) and spherical equivalent (SE) over 5 years of follow-up. RESULTS: Mean age was 67.5 ± 11.5 years (50.1% male, 49.9% female) and majority was Chinese (76.6%, n = 634) in our multiracial Asian population. DSAEK eyes had significantly better BSCVA (P < .001-.037) with lower SE (P < .001-.017) and cylinder (P < .001), independent of surgical indication, compared to PK over 5 years. DSAEK was superior to PK over 5 years (P < .001-.026) in FED, but only over 3 years in BK (P < .001-.031). DSAEK in FED eyes had significantly better BSCVA compared to BK eyes (P = .006 at 4-year follow-up). DSAEKs with preoperative BSCVA < 1.3 logMAR had significantly better visual outcomes than cases with ≥ 1.3 logMAR (P < .001-.042). PKs had significantly higher postoperative refractive correction than DSAEKs, with no significant influence of the surgery indication. CONCLUSIONS: In our study cohort, DSAEK provided significantly better long-term BSCVA and lower astigmatism than PK over 5 years of follow-up. Visual outcomes of DSAEK for FED were better than BK. In some analyses for years 1-3, analysis of covariance adjustment indicated that this DSAEK-associated better long-term BSCVA was independent of better preoperative vision in DSAEK eyes.
Authors: Fang-Chi Hsiao; Po-Yuan Chen; Yaa-Jyuhn James Meir; Hsin-Yuan Tan; Ching-Hsi Hsiao; Hsin-Chiung Lin; David Hui-Kang Ma; Lung-Kun Yeh; Wei-Chi Wu; Hung-Chi Chen Journal: Int J Environ Res Public Health Date: 2019-11-17 Impact factor: 3.390