June 2020

ASCRS NEWS

Eyeworld Journal Club
Comparison of visual performance and satisfaction with a bilateral emmetropic vs. a bilateral mild myopic target using a spherical monofocal intraocular lens


Paolo Vinciguerra, MD, Jack Holladay, MD, Luca Pagano, MD, Marco Gramigna, MD, Alfredo Borgia, MD, Vittoria Lanni, MD, Emanuela Legrottaglie, MD, Riccardo Vinciguerra, MD

Cataract Refract Surg. 2020;46(6);839–843.

Purpose: To compare the binocular visual outcomes and satisfaction of patients with emmetropia or mild myopia (–0.50 diopters [D]) implanted with a bilateral spherical monofocal intraocular lens (IOL).
Setting: Ophthalmology Department, Humanitas Clinical and Research Center, Rozzano, Milan, Italy.
Design: Prospective nonrandomized study.
Methods: This study comprised 2 groups of 30 patients each. Group 1 included patients implanted with bilateral monofocal IOLs with near emmetropic target (plano to –0.25 D). Group 2 included patients with a postoperative bilateral target of –0.50 D. Both groups underwent uncorrected and corrected distance defocus curves postoperatively, and subjective questionnaires were used to investigate patient satisfaction after surgery.
Results: The defocus curve showed a significant difference between Group 1 and Group 2 binocular vision (all p values <0.01 except at –3.00 D where p value=0.32) with Group 1 seeing significantly better than Group 2 at +1.00, +0.50 and 0 but significantly worse in all other points of the defocus. In addition, patients of Group 2 at 0 D of defocus curve (infinite) had a visual acuity close to 0 logarithm of the minimum angle of resolution (logMAR) (0.03±0.04). The main outcome of Group 2 defocus curves was that, at defocus point 0 D, even if the mean refraction was –0.67 0.15 x 160, mean unaided logMAR visual acuity was 0.0±0.06.
Conclusions: Bilateral monofocal IOLs implanted with mild myopic target provided better intermediate visual acuity compared to emmetropia at a minimal cost in terms of unaided distance visual acuity.

Comparison of visual performance and satisfaction with a bilateral emmetropic vs. a bilateral mild myopic target using a spherical monofocal intraocular lens Comparison of visual performance and satisfaction with a bilateral emmetropic vs. a bilateral mild myopic
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2020-06-22T11:24:32Z
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