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Article Abstract
Purpose: To compare the visual quality, accommodation, and stereoacuity between patients with a myopia magnitude of -3.00 to -8.50 diopters (D) who underwent ICLV4c (STAAR Surgical) implantation and small incision lenticule extraction (SMILE).
Methods: The visual quality parameters, amplitude of accommodation (AMP), and stereoacuity were compared between and within the ICLV4c and SMILE groups (40 eyes/group) with a mean spherical equivalent (SE) of -6.14 D. Differences in these parameters before and after surgery were analyzed using SPSS 22.0 software (SPSS, Inc).
Results: Modulation transfer function (MTF) cut-off increased significantly by 3.24 cycles/degree ( = -2.111, = .041) and AMP decreased significantly by 1.66 D ( = 7.519, < .001) from baseline to 3 months after surgery in the ICLV4c group. However, the MTF cut-off was significantly lower ( = 2.123, = .037) and the AMP was significantly better ( = -3.605, = .001) in the SMILE group than in the ICLV4c group at 3 months postoperatively. Other parameters such as Objective Scatter Index, Strehl ratio, and Optical Quality Analysis System (Visiometrics) under different contrast values did not show significant changes ( > .05). Stereoacuity did not improve significantly, except in a patient with anisometropia (2.50 D) in the ICLV4c group.
Conclusions: The ICLV4c implantation yielded a better visual quality but worse AMP than did SMILE in patients with a myopia magnitude of -3.00 to -8.50 D in the short term. .
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| http://dx.doi.org/10.3928/1081597X-20220919-02 | DOI Listing |
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