April 2011
Volume 52, Issue 14
Free
ARVO Annual Meeting Abstract  |   April 2011
Femtosecond Laser Keratoplasty: Suture Removal and Impact on Astigmatism
Author Affiliations & Notes
  • Whitney Lomazow
    Ophthalmology, University of California, Irvine, Irvine, California
  • Roger F. Steinert
    Ophthalmology, Gavin Herbert Eye Institute, Irvine, California
  • Marjan Farid
    Ophthalmology, University of California, Irvine, Irvine, California
  • Sumit Garg
    Ophthalmology, University of California, Irvine, Irvine, California
  • Wenxin Wei
    Ophthalmology, University of California, Irvine, Irvine, California
  • Garrick Chak
    Ophthalmology, University of California, Irvine, Irvine, California
  • Footnotes
    Commercial Relationships  Whitney Lomazow, None; Roger F. Steinert, Abbot Medical Optics (C); Marjan Farid, None; Sumit Garg, None; Wenxin Wei, None; Garrick Chak, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 3385. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Whitney Lomazow, Roger F. Steinert, Marjan Farid, Sumit Garg, Wenxin Wei, Garrick Chak; Femtosecond Laser Keratoplasty: Suture Removal and Impact on Astigmatism. Invest. Ophthalmol. Vis. Sci. 2011;52(14):3385.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract
 
Purpose:
 

To study the effect of suture removal on refractive and topographical astigmatism in patients who underwent femtosecond laser keratoplasty (FLK), zigzag pattern.

 
Methods:
 

Retrospective chart review at a single center referral academic practice identified patients who had suture removal after zig-zag incision FLK with at least 1 follow-up measurement. Topographical simK astigmatism was measured by either Orbscan or Pentacam and by manifest refraction prior to suture removal and at 1, 3, 6, 12, and 18 months after suture removal. Either a 24-bite running suture or a 16-bite running suture with 8 interrupted sutures was employed for these grafts. Eyes that had secondary surgical procedures or wound manipulation within the postoperative period were omitted. Data was compiled in a database and a paired t-test was used for statistical calculations.

 
Results:
 

25 eyes qualified for analysis. Average refractive cylinder before suture removal was 3.4 diopters and average topographical astigmatism was 4.3 diopters. After suture removal, the average refractive and topographical astigmatism at 1 month was 3.8 and 5.5 diopters respectively. At 3 months, the average refractive and topographical astigmatism was 3.85 and 4.2 diopters respectively. At 6 months the average refractive and topographical astigmatism was 3.7 and 3.8 diopters respectively. At 12 months the average refractive and topographical astigmatism was 3.5 and 3.7 diopters respectively At 18 months the average refractive and topographical astigmatism was 2.1and 2.4 diopters respectively

 
Conclusions:
 

Suture removal in these eyes show an initial increase in refractive and topographical astigmatism at 1 month with a subsequent trend towards decreased astigmatism at 3, 6, and 12 months similar to the pre-suture removal baseline.

 
Keywords: astigmatism • transplantation • laser 
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×