Abstract
Purpose :
To report the visual, refractive and keratometric changes after INTACS implantation for keratovonus.
Methods :
Retrospective chart review of records between March 2016 and September 2019 at the Cleveland Clinic Abu Dhabi. All INTACS SK rings were inserted using a femtosecond laser according to the manufacturer's recommendations. Visual, refractive and keratometric changes, along with surgical complications, were analyzed.
Results :
Sixty seven eyes of 67 keratoconus patients aged 18 to 47 (average 29) years were included. Thirty-eight were male and 38 had their right eyes operated on. Seventeen had prior collagen cross-linking and 2 had previous PRK. The mean follow-up duration was 7.5 months. Statistically significant improvement was noted in uncorrected visual acuity (preop LogMAR 1.00 to postop 0.55), best-corrected acuity (0.30 to 0.20), spherical equivalent (8.29D to 5.43D), sphere (-6.59D to -3.94D), and cylinder (3.52D to 3.16D). On keratometry, SimKimproved from 49.08D to 46.58D (p<0.001) and Kmax from 55.19D to 52.30D (p,0.001), however corneal astigmatism improved from 4.15D to 3.85D which was not significant (p=0.27). No complications were noted.
Conclusions :
INTACS implantation resulted in significant improvement in visual, refractive, and keratometric outcomes in our patients.
This is a 2021 ARVO Annual Meeting abstract.