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Intraoperative aberrometry reduces astigmatism in patients undergoing IOL implantation
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NEW ORLEANS — Use of intraoperative aberrometry reduced residual refractive astigmatism in patients undergoing toric IOL implantation, according to a study presented here.
“Our objective was to compare mean preoperative keratometric and postoperative refractive astigmatism and determine the distribution of postoperative refractive astigmatism in eyes implanted with toric IOLs,” Robert P. Lehmann, MD, said at the American Society of Cataract and Refractive Surgery meeting.
Robert P. Lehmann
The prospective, multicenter, masked evaluator study included 84 astigmatic patients who were implanted with AcrySof toric IOLs (Alcon).
Patients were 22 years of age or older and undergoing refractive cataract surgery or refractive IOL exchange.
Lehmann and colleagues used the ORA system with VerifEye+ (Alcon) to determine IOL cylinder power selection and axis of placement.
“[The ORA system] measures the total refraction during surgery and provides streaming feedback for the aphakic portion of the procedure,” Lehmann said. “Once the toric implant is implanted, it gives the pseudophakic powers including the amount of residual astigmatism.”
Mean refractive astigmatism was 1.72 D at baseline and 0.26 D postoperatively, a reduction of 85%.
At 21 days to 35 days after implantation, 89% of eyes had less than 0.50 D of refractive astigmatism. – by Nhu Te
Reference:
Lehmann R. Study of postoperative and distribution of residual refractive astigmatism using intraoperative aberrometry. Presented at: American Society of Cataract and Refractive Surgery meeting; May 6-10, 2016; New Orleans.
Disclosure: Lehmann reports he is a consultant for Alcon.