Femtosecond Laser-Assisted Keratolimbal Allograft Transplantation for the Treatment of Total Limbal Stem Cell Deficiency.

Abstract:

PURPOSE:To investigate the surgical procedure and therapeutic efficacy of femtosecond (FS) laser-assisted keratolimbal allograft (KLAL) transplantation in the treatment of eyes with total limbal stem cell deficiency. METHODS:Ten eyes from 10 patients who underwent FS laser-assisted KLAL transplantation were enrolled. The best-corrected visual acuity (BCVA), ocular surface stability, corneal transparency, and postoperative complications were recorded. RESULTS:The keratolimbal grafts prepared using the FS laser were even in thickness and width. After the surgery, glucocorticoid and tacrolimus eye drops were administered locally to the eyes with concentration gradients, and a medium dose was prescribed for maintenance. Within the mean follow-up period of 16.8 ± 7.3 months, 9 of 10 eyes (90.0%) maintained a stable ocular surface and showed significant improvements in corneal transparency and BCVA. Persistent corneal edema only occurred in one eye because of repeated epithelial defects, and the BCVA of this eye did not improve. Confocal microscopy revealed activated dendritic cells in the Bowman membrane at the limbus, but they were always low in density with small dendritic processes. No acute immune rejection, cataracts, or elevation of intraocular pressure were detected. CONCLUSIONS:The FS laser-assisted KLAL technique can produce ring-shaped grafts with an even depth and width, resulting in a stable ocular surface and good visual prognosis. After surgery, glucocorticoids and potent immunosuppressive eye drops were administered locally with concentration gradients and effectively inhibited acute immune rejection.

journal_name

Cornea

journal_title

Cornea

authors

Qi X,Duan F,Li X,Zhang X,Li N,Liu M,Gao H

doi

10.1097/ICO.0000000000002041

subject

Has Abstract

pub_date

2019-10-01 00:00:00

pages

1280-1285

issue

10

eissn

0277-3740

issn

1536-4798

journal_volume

38

pub_type

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