Surface ablation with 1050-Hz laser and SPT software improves uncorrected distance visual acuity

Patients undergoing surface ablation with a 1050-Hz excimer laser and special software experienced improved uncorrected distance visual acuity at 6 months postop.

A retrospective comparative trial of myopic eyes included 139 eyes that underwent ablation with the Amaris 750-Hz excimer laser (Schwind) and 40 eyes that underwent ablation with the Amaris 1050-Hz excimer laser (Schwind) with Smart Pulse Technology (SPT) software. Researchers compared visual acuity outcomes between the two cohorts at 6 months follow-up.

In the 1050-Hz group, 55% of patients achieved 20/16 or better uncorrected distance visual acuity compared with 21% of patients in the 750-Hz group (P = .005). Additionally, 90% of patients in the 1050-Hz group achieved 20/20 or better compared with 65% of patients in the 750-Hz group (P = .019).

“We hypothesize that this difference in outcomes is due to improved surface smoothness and reduced irregularity induced by the SPT treatment algorithm,” the study authors wrote. – by Robert Linnehan

Disclosures: Vinciguerra reports he is a consultant for Schwind eye-tech-solutions and Oculus Optikgeräte. Please see the study for all other authors’ relevant financial disclosures.

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Source:

Vinciguerra P, et al. J Refract Surg. 2017;doi:10.3928/1081597X-20161122-01.