{"title":"Macular Microvasculature Asymmetry Analysis for Evaluating Open-Angle Glaucoma in Diabetic Retinopathy Patients Treated With Pan-Retinal Photocoagulation","authors":"Kee-Sup Park, Jung-Tae Kim, Min-Woo Lee","doi":"10.1016/j.ajo.2025.05.016","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><div>To evaluate the usefulness of vertical asymmetry analysis of macular microvasculature for diagnosis of open-angle glaucoma (OAG) in diabetic retinopathy (DR) patients who have undergone pan-retinal photocoagulation (PRP).</div></div><div><h3>Design</h3><div>Retrospective, cross-sectional diagnostic evaluation.</div></div><div><h3>Methods</h3><div>DR patients with PRP were categorized into those without OAG (Group 1) and those with OAG (Group 2). Peripapillary retinal nerve fiber layer (pRNFL) thickness and macular vessel density (VD) were measured, and the vertical difference in pRNFL (vdRNFL) and VD (vdVD) was determined as the absolute difference between the superior and inferior sectors. Diagnostic performance was analyzed by calculating the area under the curve (AUC).</div></div><div><h3>Results</h3><div>Analyses included 128 eyes (Group 1: 68 and Group 2: 60). The mean pRNFL thickness was 93.9 ± 14.8 µm in Group 1 and 85.5 ± 14.4 µm in Group 2 (<em>P</em> = .009). The mean vdRNFL was 13.1 ± 10.9 µm in Group 1 and 14.4 ± 12.6 µm in Group 2 (<em>P</em> = .607). The mean VD was 15.9 ± 3.3 mm<sup>−1</sup> in Group 1 and 15.3 ± 2.6 mm<sup>−1</sup> in Group 2 (<em>P</em> = .380), whereas the vdVD was 0.6 ± 0.6 mm<sup>−1</sup> in Group 1 and 1.6 ± 1.4 mm<sup>−1</sup> in Group 2 (<em>P</em> < .001). The AUC for diagnostic accuracy was 0.812 for vdVD, significantly higher than that for other factors (all <em>P</em> < .001).</div></div><div><h3>Conclusions</h3><div>Relying on pRNFL thickness for OAG evaluation in PRP-treated patients is not recommended. Analysis of vertical microvasculature asymmetry can serve as a useful factor for diagnosing OAG.</div></div>","PeriodicalId":7568,"journal":{"name":"American Journal of Ophthalmology","volume":"277 ","pages":"Pages 242-248"},"PeriodicalIF":4.2000,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"American Journal of Ophthalmology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S000293942500248X","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose
To evaluate the usefulness of vertical asymmetry analysis of macular microvasculature for diagnosis of open-angle glaucoma (OAG) in diabetic retinopathy (DR) patients who have undergone pan-retinal photocoagulation (PRP).
DR patients with PRP were categorized into those without OAG (Group 1) and those with OAG (Group 2). Peripapillary retinal nerve fiber layer (pRNFL) thickness and macular vessel density (VD) were measured, and the vertical difference in pRNFL (vdRNFL) and VD (vdVD) was determined as the absolute difference between the superior and inferior sectors. Diagnostic performance was analyzed by calculating the area under the curve (AUC).
Results
Analyses included 128 eyes (Group 1: 68 and Group 2: 60). The mean pRNFL thickness was 93.9 ± 14.8 µm in Group 1 and 85.5 ± 14.4 µm in Group 2 (P = .009). The mean vdRNFL was 13.1 ± 10.9 µm in Group 1 and 14.4 ± 12.6 µm in Group 2 (P = .607). The mean VD was 15.9 ± 3.3 mm−1 in Group 1 and 15.3 ± 2.6 mm−1 in Group 2 (P = .380), whereas the vdVD was 0.6 ± 0.6 mm−1 in Group 1 and 1.6 ± 1.4 mm−1 in Group 2 (P < .001). The AUC for diagnostic accuracy was 0.812 for vdVD, significantly higher than that for other factors (all P < .001).
Conclusions
Relying on pRNFL thickness for OAG evaluation in PRP-treated patients is not recommended. Analysis of vertical microvasculature asymmetry can serve as a useful factor for diagnosing OAG.
期刊介绍:
The American Journal of Ophthalmology is a peer-reviewed, scientific publication that welcomes the submission of original, previously unpublished manuscripts directed to ophthalmologists and visual science specialists describing clinical investigations, clinical observations, and clinically relevant laboratory investigations. Published monthly since 1884, the full text of the American Journal of Ophthalmology and supplementary material are also presented online at www.AJO.com and on ScienceDirect.
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