[Bandage lamellar-optical keratoplasty for post-excimer laser keratectasia].

摘要: Introduction According to various sources, occurrence rate of keratectasia (KE) after Laser in situ Keratomileusis (LASIK) ranges from 0.04 0.2%. No known technique for keratorefractive surgery eliminates the probability. Neither corneal cross-linking, nor implantation polymeric segments can completely prevent its development. Purpose To treat KE LASIK with bandage lamellar-optical keratoplasty (BLOK) and evaluate results. Material methods The study included 22 patients divided into two groups. first group consisted 6 patients; they underwent BLOK using a segment transplant 1.5 mm width 180-220 µm thickness. second 16 who 2.75 wide, 290-350 thick allogeneic individual length. follow-up lasted 4 years. Results In group, uncorrected visual acuity (UCVA) improved by 0.4±007, - 0.46±0.15. After years, had their exchanged wider one due ectasia progression. Corneal refraction was stable at 45.36±1.47 Diopters all other group. it consistently between 40.6 45.7 Diopters. main complication displacement edge flap formed during occurred patients. Conclusion Bandage proved effective treating LASIK, leading improvement acuity, strengthening cornea normalization surface; slows further progression ectasia.