Predictability of microkeratome-dependent flap thickness for DSAEK.

摘要: BACKGROUND: The recommended thickness of the graft lamella in Descemet's stripping automated endothelial keratoplasty (DSAEK) is 120 - 180 microm. To adjust for large variation central corneal (CCT) eye bank donor corneas, microkeratome plates different heights are available. aim this study was to evaluate predictability keratome a clinical routine setting. METHODS: In prospective 60 consecutive DSAEK procedures, CCT measured with 50 MHz ultrasound pachymeter after meticulous epithelium removal immediately before and creation. Selected plate 300, 350, or 400 micro, respectively. Cutting depth calculated by subtracting remaining deep cut from initial cut. RESULTS: mean (+/- SD) cutting 320 +/- 45 microm Amadeus 350 keratome, 317 48 Moria 300 388 58 467 94 keratome. Neither duration nor type preservation had an effect on accuracy depth. CONCLUSION: keratomes more accurate than same heads designed LASIK. This might be due fact that lamellas were complete epithelial removal. Despite accuracy, there substantial between individual cuts which have taken into consideration.