Descemet Stripping Automated Endothelial Keratoplasty in Fuchs’ Endothelial Dystrophy versus Pseudophakic Bullous Keratopathy

PURPOSE To compare clinical and confocal scan outcomes after Descemet stripping automated endothelial keratoplasty (DSAEK) performed for Fuchs' endothelial dystrophy (FED) versus pseudophakic bullous keratopathy (PBK). METHODS This retrospective comparative study included 47 consecutive eyes of 39 patients with the diagnosis of FED (n = 29, group 1) or PBK (n = 18, group 2) that underwent DSAEK. Clinical outcomes were compared between the study groups. At the final follow-up examination, confocal microscopy was used to measure and compare central corneal and graft thickness as well as endothelial cell density and morphology between the two groups. RESULTS Mean age at the time of surgery was 65.2 ± 11.8 and 69.4 ± 12.5 years in groups 1 and 2, respectively (P = 0.27). Follow-up period was 23.6 ± 14.0 months in group 1 and 25.6 ± 15.7 months in group 2 (P = 0.79). Postoperative best spectacle-corrected visual acuity was significantly better in group 1 than in group 2 until postoperative month 6. Afterwards, the two study groups were comparable in this regard. At the final follow-up examination, spherical equivalent refractive error was + 0.39 ± 1.46 diopters (D) in group 1 and + 0.80 ± 1.47 D in group 2 (P = 0.45). Postoperative keratometric astigmatism was 1.02 ± 0.83 D and 2.36 ± 0.67 D, respectively (P < 0.001). Mean central graft thickness was 98.0 ± 33.3 μm in group 1 and 107.6 ± 28.0 μm in group 2 (P = 0.45). No statistically significant difference was observed between the two groups in terms of the postoperative endothelial cell density. CONCLUSION The outcomes of DSAEK surgery were comparable between FED and PBK. All grafts were clear despite the lower than normal endothelial cell counts.