Five year clinical results of Bowman's layer transplantation
Session Details
Session Title: Cornea: Surgical I
Session Date/Time: Sunday 08/10/2017 | 10:30-12:30
Paper Time: 12:02
Venue: Meeting Center Room I
First Author: : I. Dapena THE NETHERLANDS
Co Author(s): : J. Parker K. van Dijk E. Groenveld van Beek J. Lie L. Ham G. Melles
Abstract Details
Purpose:
To evaluate the 5 year clinical results of Bowman layer transplantation, a surgical technique to reduce and stabilize ectasia in eyes with advanced keratoconus
Setting:
Netherlands Institute for Innovative Ocular Surgery/tertiary referral center
Methods:
In twenty-two eyes of 19 patients undergoing Bowman layer transplantation for progressive, advanced keratoconus, corrected distance visual acuity (CDVA) with spectacles and contact lenses, Scheimpflug-based corneal tomography measurements, endothelial cell density, biomicroscopy, and postoperative complications were evaluated up to 60 months after surgery.
Results:
Mean maximum keratometry decreased on average from 77.2 (±6.2) D to 69.2 (±3.7) D at one month postoperatively (P<.05), and remained stable thereafter (P>.05). Mean LogMar spectacle CDVA improved from 1.27 (±0.44) before to 0.90 (±0.30) 12 months postoperatively (P<.05), with stabilization thereafter (P>.05). During the whole follow-up period, no change in mean contact lens CDVA was observed (P>.05). Pachymetry increased from before to one month postoperatively (P<.05), after which no changes were found (P>.05). One eye experienced a corneal hydrops 4.5 years postoperatively; no other postoperative complications were observed Endothelial cell density remained stable from pre- to postoperatively (P>.05).
Conclusions:
With isolated Bowman layer transplantation, reduction of corneal ectasia and stabilization up to five years thereafter was achieved in eyes with progressive, advanced keratoconus. The procedure may be performed to postpone penetrating or deep anterior lamellar keratoplasty.
Financial Disclosure:
NONE
