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- W4310368222 abstract "Abstract Purpose To assess pupillary light responses (PLRs) in eyes with high myopia and evaluate the ability of handheld chromatic pupillometry (HCP) to identify glaucomatous functional loss in eyes with high myopia. Design Cross-sectional study with prospective data collection. Methods Participants included 28 emmetropes (EM), 24 high myopes without glaucoma (HM), and 17 high myopes with confirmed glaucoma (HMG), recruited at the Singapore National Eye Center. Monocular PLRs were evaluated using a custom-built handheld pupillometer that recorded changes in horizontal pupil radius in response to 9 seconds of exponentially increasing blue (469.1nm) and red (640.1nm) lights. Fifteen pupillometric features were compared between groups. A logistic regression model (LRM) was used to distinguish HMG eyes from non-glaucomatous eyes (EM and HM). Results All pupillometric features were similar between EM and HM groups. Phasic constriction to blue (P<0.001) and red (P=0.006) lights, and maximum constriction to blue light (P<0.001) were reduced in HMG compared to EM and HM. Pupillometric features of melanopsin function (PIPR AUC 0-12s (P<0.001) and PIPR 6s (P=0.01) to blue light) were reduced in HMG. Using only three pupillometric features, the LRM could classify glaucomatous from non-glaucomatous eyes with an AUC of 0.89 (95%CI: 0.77–1.00), sensitivity 94.1% (82.4%–100.0%) and specificity 78.8% (67.3%–90.4%). Conclusions PLRs to ramping-up light stimuli are unaltered in highly myopic eyes without other diagnosed ocular conditions. Conversely, HCP can distinguish glaucomatous functional loss in highly myopic eyes and may be a useful tool to detect/confirm the presence of glaucoma in patients with high myopia." @default.
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- W4310368222 date "2022-11-29" @default.
- W4310368222 modified "2023-10-16" @default.
- W4310368222 title "Handheld chromatic pupillometry can reliably detect functional glaucomatous damage in eyes with high myopia" @default.
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- W4310368222 doi "https://doi.org/10.1101/2022.11.27.22282795" @default.
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