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Microkeratome complications in 65503 Laser in situ Keratomileusis cases

Microkeratome complications in 65503 Laser in situ Keratomileusis cases. Danielle Miranda, MD Leila Higashi,OD Marivaldo Oliveira, MD Waldir Portellinha, MD Excimer Laser Hospital Santa Cruz Sao Paulo, Brazil The authors have no financial interest in the subject matter of this poster.

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Microkeratome complications in 65503 Laser in situ Keratomileusis cases

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  1. Microkeratome complications in 65503 Laser in situ Keratomileusis cases Danielle Miranda, MD Leila Higashi,OD Marivaldo Oliveira, MD Waldir Portellinha, MD Excimer Laser Hospital Santa Cruz Sao Paulo, Brazil The authors have no financial interest in the subject matter of this poster

  2. PURPOSE To describe the incidence of LASIK complications related with microkeratomes

  3. METHODS • Retrospective, comparative, interventional case series. • We reviewed the records of patients who underwent LASIK at Excimer Laser Santa Cruz, São Paulo, Brazil (65503 eyes). • Type of complication,microkeratome and keratometric readingswere studied.

  4. RESULTSType of Complication • 380 eyes (0.0058%) with an intraoperative complication were identified. • Complications included incomplete flaps (0.21%), buttonholes (0.09%), thin flaps (0.06%), and free flaps (0.07%).

  5. RESULTSType of Complication

  6. RESULTSType of Complication x Microkeratome %

  7. RESULTSMicrokeratome • The Hansatome was the most common microkeratome used (44.884 eyes; 68,52%), followed bythe Automated CornealShaper-ACS (14.652 eyes, 22,36%) and the Nidek MK-2000 (5967 eyes, 9,1%).

  8. RESULTSMicrokeratome • Intraoperative complications were more common with the ACS (1.31%) than with the Hansatome (0.62%) and Nidek MK-2000 (0.64%) (P<.001)

  9. RESULTSMicrokeratome • Buttonholes were more frequent with the ACS (0.32%) than with the Hansatome (0.07%) (P<.001) and free flaps were more common with the ACS (0.27%) and MK-2000 (0.3%) than with the Hansatome (0.05%) (P<.001).

  10. RESULTSKeratometric Readings

  11. CONCLUSIONS • Complications with mechanical microkeratomes to perform LASIK surgery are extremely rare • Most of the complications involve construction of corneal flap • There is no significant disadvantage compared with the femtonsecond laser • Intraoperative complications were more common with the ACS than with the Hansatome or MK-2000. Buttonholes were most frequent with the ACS, and the Hansatome had the lowest incidence of free flaps

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