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- W1483083371 abstract "It has previously been reported that patients who suffer from Fuchs' endothelial dystrophy (Fuchs' ED) have decreased contrast sensibility threshold. The removal of endothelial guttata by Descemet's Stripping Automated Endothelial Keratoplasty (DSAEK) surgery has also been demonstrated to decrease intraocular light scatter and improve contrast thresholds. The purpose of this study was to compare different visual qualities in patients that had undergone DSAEK surgery in one eye while having untreated Fuchs' dystrophy in the other eye.Thirty-two eyes of 16 patients with bilateral Fuchs' ED who had DSAEK surgery performed in one eye were enrolled. Visual acuity at 100% contrast and contrast sensitivity (CS) as evaluated by a modified simulation of the Freiburg Acuity and Contrast Test, was measured in both eyes of each patient. Snellen visual acuity improved in treated eyes from 0.66 ± 0.35 (SD) before surgery to 0.38 ± 0.18 after surgery (log MAR units; p < 0.01). In eyes with untreated Fuchs' dystrophy, visual acuity was 0.46 ± 0.14. In a pairwise comparison, there was no difference in Snellen visual acuity between treated and nontreated eyes (p = 0.12). Contrast sensitivity was significantly better in DSAEK-treated eyes compared with untreated eyes. Mean log CS in DSAEK-treated eyes was 1.06 ± 0.25 compared with a mean log CS of 0.84 ± 0.16 in untreated eyes (p < 0.01). Fourteen of 16 patients (88%) reported that vision in their DSAEK-treated eye had the best visual quality.In this study, using a paired design, we demonstrate improved CS in DSAEK-operated eyes when compared with the other eye that had untreated Fuchs' ED despite the fact that no difference in visual quality was detected with standard Snellen visual acuity. Contrast sensitivity appears to be superior to normal visual acuity measurements in the evaluation of overall visual quality after DSAEK." @default.
- W1483083371 created "2016-06-24" @default.
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- W1483083371 date "2011-08-11" @default.
- W1483083371 modified "2023-09-23" @default.
- W1483083371 title "Visual acuity and contrast sensitivity after posterior lamellar keratoplasty" @default.
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- W1483083371 doi "https://doi.org/10.1111/j.1755-3768.2011.02218.x" @default.
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