Non-penetrating femtosecond laser intrastromal astigmatic keratotomy combined with cataract surgery

Session Details

Session Title: LASIK II

Session Date/Time: Tuesday 25/09/2018 | 16:30-18:00

Paper Time: 17:28

Venue: Room A3, Podium 2

First Author: : H.Aslankara TURKEY

Co Author(s): :    A. Kocakaya   A. Dvallishvilli   C. Yildirim              

Abstract Details

Purpose:

To evaluate the effectiveness and stabilitiy of femtosecond laser assisted intrastromal arcuate keratotomy (AK) combined with cataract surgery in reducing corneal astigmatism in eyes with low to moderate corneal astigmatism.

Setting:

Private Gozakademi Eye Hospital, Denizli, Turkey.

Methods:

Data were collected retrospectively. All of the cases underwent anterior capsulotomy, lens fragmentation, corneal incisions and intrastromal AK using a Catalys, (Abbott Medical Optics Inc.,Santa Ana, CA, USA) femtosecond laser platform. The procedure was completed by phacoemulsification and insertion of an intraocular lens. An intrastromal AK nomogram with 8.0 mm diameter paired symmetric limbal centered nonpenetrating corneal arcuat incisions of 20% to 80% depth was used. Corneal keratometry was measured using a topographer-autorefractor (Nidek, CO.,Ltd). Corneal astigmatism, best corrected and uncorrected distance visual acuity measurements (BCDVA, UCDVA) obtained preoperatively and postoperatively at 1 month and 1 year were analyzed.

Results:

The study enrolled 50 eyes of 36 patients. The mean and range of preoperative and postoperatively at 1month and 1 year keratometric astigmatism measurements were 1.36±0.46D(0.75-2.75), 0.74±0.31D(0.25-1.50) and 0.77±0.47D(0.25-1.50) respectively. These results indicate that mean keratometric astigmatism was significantly reduced at 1 month(p < 0.05) and remained stable at 1 year postoperatively(p < 0.05). The BCDVA at baseline was 0,61±0,31(0,22-1) logMARunit. UCDVA postoperatively at 1 month and 1 year were 0,16±0,13 and 0,18±0.15 logMAR unit respectively(both p<0.05). There were no intraoperative or postoperative complications and no perforations occurred.

Conclusions:

Femtosecond laser non penetrating intrastromal AK combined with phacoemulsification were effective and safe in reducing corneal astigmatism during cataract surgery.

Financial Disclosure:

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