Posters

Clinical outcomes of beveled full thickness astigmatic keratotomy

Poster Details

First Author: B.Kim SOUTH KOREA

Co Author(s):    Y. Chung   S. Mun   D. Lee              

Abstract Details

Purpose:

Treatment of astigmatism is generally considered more difficult than treatment of simple spherical errors. Astigmatic keratotomy is effective in correcting astigmatism,in this technique, an incision is made over a steep axis to flatten the cornea. It is possible to reduce astigmatism without altering the spherical equivalent. Using this procedure, it is possible to get better visual result for patients who has high astigmatism. We would like to evaluate the beveled, full thickness astigmatic keratotomy.

Setting:

Onnuri Eye Clinic, Jeonju, Korea.

Methods:

We enrolled 185 eyes from 112 patients with high-level astigmatism who were treated with beveled, full thickness astigmatic keratotomy at Onnuri eye clinic from January 2012 to November 2013. Treated eyes were divided into 3 groups: astigmatic keratotomy after ICL implantation (A group), astigmatic keratotomy after cataract surgery (B group), astigmatic keratotomy alone (C group). Astigmatic keratotomy was performed 2 months after ICL implantation (A group) or cataract surgery (B group). Follow-up visits were at 1 week, 1 month, 3 months, and 6 months. The outcome measures included uncorrected distance visual acuity (UDVA), astigmatism, efficacy, safety and predictability.

Results:

At 6 months postoperatively, astigmatism was significantly reduced: 68.9 ± 18.24% in total, 69.24 ± 20.76%, in the A group, 67.84 ± 17.56% in the B group, 67.82 ± 13.97% in the C group. The proportion of eyes with astigmatism 1.0 or less was 88.65% in total, 91.49% in the A group, 87.5% in the B group, 70.0% in the C group. Mean improvement in corrected distance visual acuity (CDVA) was 0.56 lines; there were no eyes that lost 2 lines of CDVA after 6 months postopertively. No postoperative complication was observed.

Conclusions:

Astigmatic keratotomy is effective and easy to treat astigmatism, but this procedure is not widely used because of variety in the nomogram, relatively low predictability, tendency to regress, and complications. However using beveled, full thickness astigmatic keratotomy, we could correct astigmatism effectively and safely in treatment of astigmatism alone as well as treatment of astigmatism after ICL implantation or cataract surgery.

Financial Disclosure:

NONE