Characteristics of beta parapapillary atrophy in primary angle-closure suspect

Objective To investigate the characteristics of beta parapapillary atrophy (β-PPA) in patients with primary angle-closure suspect (PACS).Methods and analysis In total, 215 and 259 eyes with PACS and non-PACS (NPACS), respectively, were enrolled in this observational, cross-sectional study. Stereosco...

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Main Authors: Qing Zhang, Ye Zhang, Xiaohua Pan, Hui Feng, Shuning Li, Zhi Li, Meijuan Zhang, Caixia Li, Fei Xiang, Qianqian Ji
Format: Article
Language:English
Published: BMJ Publishing Group 2024-05-01
Series:BMJ Open Ophthalmology
Online Access:https://bmjophth.bmj.com/content/9/1/e001529.full
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author Qing Zhang
Ye Zhang
Xiaohua Pan
Hui Feng
Shuning Li
Zhi Li
Meijuan Zhang
Caixia Li
Fei Xiang
Qianqian Ji
author_facet Qing Zhang
Ye Zhang
Xiaohua Pan
Hui Feng
Shuning Li
Zhi Li
Meijuan Zhang
Caixia Li
Fei Xiang
Qianqian Ji
author_sort Qing Zhang
collection DOAJ
description Objective To investigate the characteristics of beta parapapillary atrophy (β-PPA) in patients with primary angle-closure suspect (PACS).Methods and analysis In total, 215 and 259 eyes with PACS and non-PACS (NPACS), respectively, were enrolled in this observational, cross-sectional study. Stereoscopic fundus and optical coherence tomography images were used to characterise β-PPA; the former was also used to measure the major β-PPA parameters. Univariate and multiple logistic regression analyses were used to identify the factors correlated with the presence of β-PPA and with β-PPA parameters.Results The β-PPA occurrence rates were 48.80% and 44.40% in the PACS and NPACS groups, respectively, with no significant difference between groups. Compared with that in the NPACS group, the β-PPA area was significantly larger (p=0.005) in the PACS group, but the angular extent and maximum radial length did not differ between groups (p=0.110 and 0.657, respectively) after adjusting for age and axial length. The presence of β-PPA was associated with older age (OR 1.057, 95% CI 1.028 to 1.088, p<0.001) and larger disc area (OR 1.716, 95% CI 1.170 to 2.517, p=0.006). A larger β-PPA area was associated with older age (p=0.014), greater vertical cup-to-disc ratio (p=0.028), larger disc area (p<0.001) and PACS diagnosis (p=0.035).Conclusion 48.80% of participants with PACS had β-PPA, which is slightly larger than NPACS. The area of β-PPA was larger in PACS, while the angular extent and maximum radial length did not differ between groups.
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spelling doaj-art-58466ff7bb04425c8127abdc179890d22025-02-06T10:40:08ZengBMJ Publishing GroupBMJ Open Ophthalmology2397-32692024-05-019110.1136/bmjophth-2023-001529Characteristics of beta parapapillary atrophy in primary angle-closure suspectQing Zhang0Ye Zhang1Xiaohua Pan2Hui Feng3Shuning Li4Zhi Li5Meijuan Zhang6Caixia Li7Fei Xiang8Qianqian Ji9Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Science, Beijing Tongren Hospital, Capital Medical University, Beijing, ChinaBeijing Tongren Eye Center, Beijing Tongren Hospital, Beijing Ophthalmology & Visual Science Key Lab, Capital Medical University, Beijing, ChinaShenzhen Eye Hospital, Jinan University, Shenzhen Eye Institute, Shenzhen, ChinaBeijing Tongren Eye Center, Beijing Tongren Hospital, Beijing Ophthalmology & Visual Science Key Lab, Capital Medical University, Beijing, ChinaBeijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Science, Beijing Tongren Hospital, Capital Medical University, Beijing, China2 Department of Infectious Diseases, Children’s Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, ChinaBeijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Science, Beijing Tongren Hospital, Capital Medical University, Beijing, ChinaShaanxi Eye Hospital, Xi`an People`s Hospital (Xi`an Fourth Hospital), Xi`an, Shaanxi, ChinaBeijing Tongren Eye Center, Beijing Tongren Hospital, Beijing Ophthalmology & Visual Science Key Lab, Capital Medical University, Beijing, ChinaDepartment of Epidemiology, School of Public Health (Shenzhen), Sun Yat-Sen University, Shenzhen, Guangdong, ChinaObjective To investigate the characteristics of beta parapapillary atrophy (β-PPA) in patients with primary angle-closure suspect (PACS).Methods and analysis In total, 215 and 259 eyes with PACS and non-PACS (NPACS), respectively, were enrolled in this observational, cross-sectional study. Stereoscopic fundus and optical coherence tomography images were used to characterise β-PPA; the former was also used to measure the major β-PPA parameters. Univariate and multiple logistic regression analyses were used to identify the factors correlated with the presence of β-PPA and with β-PPA parameters.Results The β-PPA occurrence rates were 48.80% and 44.40% in the PACS and NPACS groups, respectively, with no significant difference between groups. Compared with that in the NPACS group, the β-PPA area was significantly larger (p=0.005) in the PACS group, but the angular extent and maximum radial length did not differ between groups (p=0.110 and 0.657, respectively) after adjusting for age and axial length. The presence of β-PPA was associated with older age (OR 1.057, 95% CI 1.028 to 1.088, p<0.001) and larger disc area (OR 1.716, 95% CI 1.170 to 2.517, p=0.006). A larger β-PPA area was associated with older age (p=0.014), greater vertical cup-to-disc ratio (p=0.028), larger disc area (p<0.001) and PACS diagnosis (p=0.035).Conclusion 48.80% of participants with PACS had β-PPA, which is slightly larger than NPACS. The area of β-PPA was larger in PACS, while the angular extent and maximum radial length did not differ between groups.https://bmjophth.bmj.com/content/9/1/e001529.full
spellingShingle Qing Zhang
Ye Zhang
Xiaohua Pan
Hui Feng
Shuning Li
Zhi Li
Meijuan Zhang
Caixia Li
Fei Xiang
Qianqian Ji
Characteristics of beta parapapillary atrophy in primary angle-closure suspect
BMJ Open Ophthalmology
title Characteristics of beta parapapillary atrophy in primary angle-closure suspect
title_full Characteristics of beta parapapillary atrophy in primary angle-closure suspect
title_fullStr Characteristics of beta parapapillary atrophy in primary angle-closure suspect
title_full_unstemmed Characteristics of beta parapapillary atrophy in primary angle-closure suspect
title_short Characteristics of beta parapapillary atrophy in primary angle-closure suspect
title_sort characteristics of beta parapapillary atrophy in primary angle closure suspect
url https://bmjophth.bmj.com/content/9/1/e001529.full
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