Relatively anterior lens position in primary angle-closure glaucoma eyes with long axial length

Chen, JiaweiZhang, YanHuang, YuqiangNg, Tsz KinHuang, Chukai2023-08-252023-08-252023-05Chen Jiawei, Zhang Yan, Huang Yuqiang, Ng Tsz Kin, Huang Chukai. Relatively anterior lens position in primary angle-closure glaucoma eyes with long axial length. Indian Journal of Ophthalmology. 2023 May; 71(5): 1941-19471998-36890301-4738http://imsear.searo.who.int/handle/123456789/225006Purpose: To evaluate the refractive status and ocular biometric parameters in primary angle?closure glaucoma (PACG) eyes with different axial lengths (ALs). Methods: In total, 742 Chinese PACG subjects with complete ophthalmic examinations were enrolled. The refractive status was categorized as myopia (spherical equivalent [SE] ??0.5 D), emmetropia (?0.5 D < SE < +0.5 D), and hyperopia (SE ?+0.5 D), whereas the AL was divided into short (AL <22.5 mm), regular (22.5 ? AL <23.5 mm), and long (AL ?23.5 mm). The refractive status and ocular biometric parameters were compared among different AL groups. Results: The mean AL of the PACG eyes was 22.53 ± 0.84 mm (range: 19.68–25.57 mm). The refractive status was significantly different among different AL groups (P < 0.001). Also, 92.6% of hyperopic PACG eyes showed AL <23.5 mm, and 19.0% of myopic PACG eyes showed AL ?23.5 mm. The SE showed significant differences among different AL groups only in the hyperopic subjects (P = 0.012). The AL was significantly longer in myopic eyes (P < 0.001). The PACG eyes with longer AL exhibited lower keratometry, longer central anterior chamber depth and corneal diameter, and lens position and relative lens position closer to the anterior (P < 0.001). Conclusion: Axial hyperopia was common in PACG eyes, and axial myopia was not uncommon. Relatively anterior lens position could explain the occurrence of PACG in the eyes with long AL.Axial lengthocular biometric parametersprimary angle?closure glaucomarefractive statusRelatively anterior lens position in primary angle-closure glaucoma eyes with long axial lengthJournal ArticleIndiaJoint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, Guangdong, ChinaShantou University Medical College, Shantou, Guangdong, ChinaDepartment of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China