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Managing pre-existing corneal astigmatism using iris registration-guided, femtosecond laser-assisted arcuate incisions performed during cataract surgery

Poster Details

First Author: D.Visco USA

Co Author(s):                        

Abstract Details

Purpose:

To evaluate the outcomes of Iris registration-guided, femtosecond laser-assisted arcuate incisions performed with cataract surgery in eyes with pre-existing astigmatism.

Setting:

Eyes of York Cataract & Laser Center, York, PA

Methods:

This retrospective non-comparative study included 279 eyes of 203 patients with cataract and pre-existing astigmatism ranging from 0.50 D to 1.91 D. All eyes underwent LENSAR femtosecond laser-assisted cataract surgery and AIs using wireless transfer (Streamline) of the preoperative undilated Iris registration image from Cassini to the laser system. Cyclorotation was automatically compensated by adjusting incision placement. The incision parameters were automatically generated by LENSAR�â�€�™s Arcuate Incision Planning software based on surgeon preference and surgically induced astigmatism. The primary outcome measure was residual astigmatism at two weeks and 3 months after surgery.

Results:

At postoperative 2 weeks, the mean residual sphere, cylinder and MRSE were -0.17 D, -0.09 D and -0.13 D respectively. In particular, 88.2% eyes had �â�‰�¤ 0.25 D, 94.6% eyes had �â�‰�¤ 0.5 D and 99.3% eyes had �â�‰�¤ 0.75 D of residual astigmatism postoperatively. At postoperative 3 months, the mean residual sphere, cylinder and MRSE were -0.20, 0.17 and -0.11D respectively. Residual astigmatism was �â�‰�¤ 0.25 D in 74.8% eyes, �â�‰�¤ 0.5 D in 94.1% eyes and �â�‰�¤ 0.75 D in 99.2% eyes at 3 months. No complications were observed.

Conclusions:

The LENSAR Arcuate Incision Planning software using Iris registration yielded safe and effective outcomes in cataract patients with low to moderate astigmatism, with ~95% of the eyes having residual refractive astigmatism of �â�‰�¤ 0.50 D.

Financial Disclosure:

receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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