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Junya Sato, Xiaodong Zheng, Arisa Mitani, Tomoyuki Kamao, Atsushi Shiraishi; Improvement of Functional Visual Acuity Following Levator Resection in Involutional Blepharoptosis. Invest. Ophthalmol. Vis. Sci. 2019;60(9):6238.
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© ARVO (1962-2015); The Authors (2016-present)
Functional visual acuity (FVA) examination is a useful tool for continuous measurement of visual acuity and evaluation of the quality of vision (QOV). In this study, we report the changes of FVA after levator resection in involutional blepharoptosis.
Patients diagnosed with involutional blepharoptosis and underwent bilateral levator resection in the Department of Ophthalmology, Ehime University were studied. A total of 6 males 12 eyes and 8 females 16 eyes were investigated. The average age was 71.4 ± 6.8yrs. MRD1 was determined and FVA was examined before and at one month after surgery using FVA-100 (NIDEK, Japan). The FVA, visual maintenance ratio (VMR), highest VA (HVA), lowest VA (LVA), average response time (ART) were comparatively analyzed.
The FVA and VMR both increased significantly after surgery (P=0.011, P=0.015, respectively, paired t-test). The HVA, LVA and ART showed no significant difference before and after surgery (P=0.215, P=0.453 and P=0.628, respectively). For eyes that had less improvement in FVA, 50% had somehow signs of dry eye symptoms.
Blepharoptosis surgery improves FVA and VMR. Dry eye syndrome should be kept in mind as a risk factor that may hamper the improvement of QOV.
This abstract was presented at the 2019 ARVO Annual Meeting, held in Vancouver, Canada, April 28 - May 2, 2019.
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