Association of myopia and parapapillary choroidal microvascular density in primary open-angle glaucoma

Suwan, Yanin; Chansangpetch, Sunee; Fard, Masoud Aghsaei; Pooprasert, Pakinee; Chalardsakul, Kamolwat; Threetong, Thanatporn; Tipparut, Siripa; Saaensupho, Thiraporn; Tantraworasin, Apichat; Hojati, Sahar; Kafieh, Raheleh; Danesh, Hajar; Petpiroon, Purit; Supakontanasan, Wasu

Abstract

Background/Aims: To compare parapapillary choroidal microvascular (PPCMv) densities between myopic eyes with and without glaucoma. Methods: In this retrospective study, OCTA images (4.5 × 4.5 mm) were obtained using a commercial spectral-domain OCTA system. PPCMv density was calculated in inner and outer annuli using customized software. Marginal model of generalized estimating equations was established to adjust for confounding factors and intraclass correlations. Results: This study included 35 myopic eyes with glaucoma (MG), 96 non-myopic eyes with glaucoma (NMG) matched for visual field mean deviation, 37 myopic eyes without glaucoma (MNG), and 73 control eyes from three tertiary centers. The participant ages were (mean [standard deviation, SD]) 57.43 [11.49], 60.40 [10.07], 52.84 [9.35], and 54.74 [12.07] years. Inner and outer annular PPCMv densities (mean [SD]) decreased in the following order: control (0.15 [0.04] and 0.12 [0.04]), MNG (0.14 [0.08] and 0.12 [0.08]), NMG (0.09 [0.05] and 0.07 [0.04]), and MG (0.09 [0.04] and 0.07 [0.03]). The mean differences in PPCMv density between glaucoma groups (NMG and MG) and the control group (mean difference [95% confidence interval]) were −0.06 (−0.08 to −0.04, P < 0.001 for inner whole annular PPCMv density in NMG vs control) and −0.07 (−0.10 to −0.04, P < 0.001 for inner whole annular PPCMv density in MG vs control), consistent across all regions of interest (ROIs). No significant interaction was observed between glaucoma and myopia after adjustment for potential confounders (P > 0.112). Conclusions: Parapapillary choroidal microvascular density attenuation tends to be greater in eyes with glaucoma than in eyes with myopia.

Citation

Suwan, Y., Chansangpetch, S., Fard, M. A., Pooprasert, P., Chalardsakul, K., Threetong, T., Tipparut, S., Saaensupho, T., Tantraworasin, A., Hojati, S., Kafieh, R., Danesh, H., Petpiroon, P., & Supakontanasan, W. (2025). Association of myopia and parapapillary choroidal microvascular density in primary open-angle glaucoma. PLoS ONE, 20(2), Article e0317881. https://doi.org/10.1371/journal.pone.0317881

• Journal Article Type: Article
• Acceptance Date: Jan 7, 2025
• Online Publication Date: Feb 25, 2025
• Publication Date: Feb 25, 2025
• Deposit Date: Mar 13, 2025
• Publicly Available Date: Mar 13, 2025
• Journal: PLOS ONE
• Electronic ISSN: 1932-6203
• Publisher: Public Library of Science
• Peer Reviewed: Peer Reviewed
• Volume: 20
• Issue: 2
• Article Number: e0317881
• DOI: https://doi.org/10.1371/journal.pone.0317881
• Public URL: https://durham-repository.worktribe.com/output/3561825