Effects of posterior scleral reinforcement in pathological myopia: a 3-year follow-up study
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To assess the effects of posterior sclera reinforcement (PSR) in refractive outcomes, choroidal thickness (CT), and retinal thickness (RT) during a 3-year follow-up in eyes with pathological myopia.
Thirty-eight eyes of 26 adults with pathological myopia who underwent PSR (the PSR group) and 30 eyes of 18 adults with matched age and myopia who did not receive PSR treatment (the control group) were followed up with measurements of axial length (AL), spherical equivalent (SE), best corrected visual acuity (BCVA), CT, and RT at baseline, 1 and 3 months, and 1, 2, and 3 years postoperatively. Data were analyzed by repeated measures analysis of variance and independent-samples t test.
In the PSR group, AL, SE, BCVA, and CT were tending to be relatively stable and no statistically significant changes were found during the follow-up (all P > 0.05). In contrast, in the control group, compared with the measurements taken at baseline, AL, SE, BCVA, and CT altered gradually from 1 month onward to 3 years postoperatively. At 2-year and 3-year follow-ups, significant differences in AL, SE, BCVA, and CT were noted between the PSR group and the control group (all P < 0.05). RTs of the center subfield and the inner ring were equal to the baseline in the control group; however, RTs of the center subfield at 1 year, 2 years, and 3 years postoperatively significantly slightly reduced compared with those at the baseline in the PSR group (all P < 0.05).
The effects of PSR in restraining eyeball elongation, stabilizing vision, and strengthening the structure of posterior pole are more prominent 2 years or more postoperatively compared with the natural progression of pathological myopia.
KeywordsPathological myopia Posterior scleral reinforcement Axial length Spherical equivalent Choroidal thickness Retinal thickness
This study was funded by the National Natural Science Foundation of China (81700814, 81703185, and 81870644), the Shenyang Science and Technology Bureau (18-014-4-46), and the Foundation of Liaoning Province Education Administration (LK201641).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
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