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Visual quality and performance following bilateral implantation of TECNIS Symfony intraocular lenses with or without micro-monovision

Authors Tan J, Qin Y, Wang C, Yuan S, Ye J

Received 21 January 2019

Accepted for publication 10 April 2019

Published 28 June 2019 Volume 2019:13 Pages 1071—1077


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser

Jilin Tan,1,2 Yan Qin,2 Changpeng Wang,2 Shiman Yuan,2 Jian Ye1

1Department of Ophthalmology, Army Medical Center of PLA, Daping Hospital, Army Medical University, Chongqing 400042, People’s Republic of China; 2Cataract Department, Chongqing Aier Mega Eye Hospital, Chongqing 400060, People’s Republic of China

Purpose: To evaluate the visual quality and performance of TECNIS Symfony intraocular lenses (IOLs) implanted with or without micro-monovision approach.
Setting: Chongqing Aier Mega Eye Hospital, Chongqing, China; Daping Hospital of Army Medical University, Chongqing, China.
Design: Prospective study.
Methods: The study comprised 70 cataract patients who had bilateral implantation of TECNIS Symfony extended range of vision IOLs, either with intended micro-monovision (monovision group: 35 patients) or with intended emmetropia (control group: 35 patients). Visual acuity, modulation transfer function (MTF), defocus curve, spectacle independence, and photic phenomena were analyzed 3 months postoperatively.
Results: There was no significant difference between the two groups in binocular uncorrected visual acuity at distance. Mean binocular uncorrected visual acuity at intermediate (monovision: 0.81 dec; control: 0.58 dec) and near (monovision: 0.59 dec; control: 0.30 dec) were significantly better in the monovision group. In the monovision group, the difference of MTF values between the dominant and the non-dominant eyes was not statistically significant and MTF values were within the normal range for both eyes. Spectacle independence at intermediate and near was statistically significantly higher in the monovision group compared to the control group. The incidence of photic phenomena was similar in both groups.
Conclusion: Micro-monovision implantation of TECNIS Symfony IOLs provided a superior range of visual acuity from far to near and higher spectacle independence compared to a control group targeted for emmetropia.

Keywords: cataract, extended range of vision, defocus curve, spectacle independence, emmetropia, photic phenomena

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