Biometric and Structural Ocular Manifestations of Anterior Megalophthalmos

ObjectiveThe aim of this study was to examine the biometric ocular manifestations and structural ocular features of anterior megalophthalmos (AM).MethodsFifteen patients with AM (30 eyes) from the Eye & ENT Hospital of Fudan University were included. The age-matched control group consisted o...

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Main Authors: Tian-Hui Chen, Ze-Xu Chen, Min Zhang, Jia-Hui Chen, Li-Na Lan, Yongxiang Jiang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-05-01
Series:Frontiers in Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2022.732452/full
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author Tian-Hui Chen
Tian-Hui Chen
Tian-Hui Chen
Ze-Xu Chen
Ze-Xu Chen
Ze-Xu Chen
Min Zhang
Min Zhang
Min Zhang
Jia-Hui Chen
Jia-Hui Chen
Jia-Hui Chen
Li-Na Lan
Li-Na Lan
Li-Na Lan
Yongxiang Jiang
Yongxiang Jiang
Yongxiang Jiang
author_facet Tian-Hui Chen
Tian-Hui Chen
Tian-Hui Chen
Ze-Xu Chen
Ze-Xu Chen
Ze-Xu Chen
Min Zhang
Min Zhang
Min Zhang
Jia-Hui Chen
Jia-Hui Chen
Jia-Hui Chen
Li-Na Lan
Li-Na Lan
Li-Na Lan
Yongxiang Jiang
Yongxiang Jiang
Yongxiang Jiang
author_sort Tian-Hui Chen
collection DOAJ
description ObjectiveThe aim of this study was to examine the biometric ocular manifestations and structural ocular features of anterior megalophthalmos (AM).MethodsFifteen patients with AM (30 eyes) from the Eye & ENT Hospital of Fudan University were included. The age-matched control group consisted of 30 participants (30 eyes) who underwent Pentacam HR and IOLMaster 700 measurements for one normal eye. Data on demographics, biometric manifestations, and genotypes were carefully compared.ResultsA total of 15 patients with AM and 30 control patients were enrolled. There were no differences in age (37.27 ± 19.1 vs. 31.43 ± 19.69 years, P = 0.249) between these two groups. AM eyes were characterized by premature cataracts (11/30, 36.67%) and zonular weakness with lens subluxation (22/30, 73.33%) compared with the control group. Notably, 20 of the 30 AM eyes (66.67%) had significant posterior iris bowing, and 16 of the 30 AM eyes (53.33%) showed an enlarged ciliary ring on ultrasound biomicroscopy (UBM). Mean corneal curvature was lower in the AM eyes (42.01 ± 2.06 D vs. 43.14 ± 1.38 D, P = 0.023). There was no significant difference in corneal pachymetry and central endothelial cell count between the AM and control groups. Significant differences were found in terms of the anterior chamber and white-to-white (WTW) among the Pentacam HR and IOLMaster 700 in patients with AM (P < 0.05). The difference was 0.53 ± 0.48 mm and 0.36 ± 0.14 mm, respectively (P < 0.001).ConclusionThe results of this cohort study conclude the biometric and structural ocular manifestations in Chinese cohorts. Posterior iris bowing (66.67%) and lens subluxation (73.33%) are the most characteristic findings in patients with AM with anatomical abnormalities of megalocornea and a deep anterior chamber, although corneal biometric manifestations of AM included flatter cornea and lower total corneal astigmatism. The knowledge of ocular manifestations of AM is important for diagnosis and preparation for the operation in advance to avoid intraoperative and postoperative complications. Significant differences were found in the anterior chamber and WTW values between the Pentacam HR and IOLMaster 700. Thus, we suggest that various examinations should be carefully considered before determining an AM diagnosis.
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spelling doaj.art-924bdd9f577e44149f92a571961369b02022-12-22T00:21:41ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2022-05-01910.3389/fmed.2022.732452732452Biometric and Structural Ocular Manifestations of Anterior MegalophthalmosTian-Hui Chen0Tian-Hui Chen1Tian-Hui Chen2Ze-Xu Chen3Ze-Xu Chen4Ze-Xu Chen5Min Zhang6Min Zhang7Min Zhang8Jia-Hui Chen9Jia-Hui Chen10Jia-Hui Chen11Li-Na Lan12Li-Na Lan13Li-Na Lan14Yongxiang Jiang15Yongxiang Jiang16Yongxiang Jiang17Department of Ophthalmology and Vision Science, Eye & ENT Hospital of Fudan University, Shanghai, ChinaKey Laboratory of Myopia of State Health Ministry, Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, ChinaDepartment of Ophthalmology and Vision Science, Eye & ENT Hospital of Fudan University, Shanghai, ChinaKey Laboratory of Myopia of State Health Ministry, Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, ChinaDepartment of Ophthalmology and Vision Science, Eye & ENT Hospital of Fudan University, Shanghai, ChinaKey Laboratory of Myopia of State Health Ministry, Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, ChinaDepartment of Ophthalmology and Vision Science, Eye & ENT Hospital of Fudan University, Shanghai, ChinaKey Laboratory of Myopia of State Health Ministry, Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, ChinaDepartment of Ophthalmology and Vision Science, Eye & ENT Hospital of Fudan University, Shanghai, ChinaKey Laboratory of Myopia of State Health Ministry, Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, ChinaDepartment of Ophthalmology and Vision Science, Eye & ENT Hospital of Fudan University, Shanghai, ChinaKey Laboratory of Myopia of State Health Ministry, Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai, ChinaState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, ChinaObjectiveThe aim of this study was to examine the biometric ocular manifestations and structural ocular features of anterior megalophthalmos (AM).MethodsFifteen patients with AM (30 eyes) from the Eye & ENT Hospital of Fudan University were included. The age-matched control group consisted of 30 participants (30 eyes) who underwent Pentacam HR and IOLMaster 700 measurements for one normal eye. Data on demographics, biometric manifestations, and genotypes were carefully compared.ResultsA total of 15 patients with AM and 30 control patients were enrolled. There were no differences in age (37.27 ± 19.1 vs. 31.43 ± 19.69 years, P = 0.249) between these two groups. AM eyes were characterized by premature cataracts (11/30, 36.67%) and zonular weakness with lens subluxation (22/30, 73.33%) compared with the control group. Notably, 20 of the 30 AM eyes (66.67%) had significant posterior iris bowing, and 16 of the 30 AM eyes (53.33%) showed an enlarged ciliary ring on ultrasound biomicroscopy (UBM). Mean corneal curvature was lower in the AM eyes (42.01 ± 2.06 D vs. 43.14 ± 1.38 D, P = 0.023). There was no significant difference in corneal pachymetry and central endothelial cell count between the AM and control groups. Significant differences were found in terms of the anterior chamber and white-to-white (WTW) among the Pentacam HR and IOLMaster 700 in patients with AM (P < 0.05). The difference was 0.53 ± 0.48 mm and 0.36 ± 0.14 mm, respectively (P < 0.001).ConclusionThe results of this cohort study conclude the biometric and structural ocular manifestations in Chinese cohorts. Posterior iris bowing (66.67%) and lens subluxation (73.33%) are the most characteristic findings in patients with AM with anatomical abnormalities of megalocornea and a deep anterior chamber, although corneal biometric manifestations of AM included flatter cornea and lower total corneal astigmatism. The knowledge of ocular manifestations of AM is important for diagnosis and preparation for the operation in advance to avoid intraoperative and postoperative complications. Significant differences were found in the anterior chamber and WTW values between the Pentacam HR and IOLMaster 700. Thus, we suggest that various examinations should be carefully considered before determining an AM diagnosis.https://www.frontiersin.org/articles/10.3389/fmed.2022.732452/fullanterior megalophthalmosocular manifestationslens subluxationcataractmegalocornea
spellingShingle Tian-Hui Chen
Tian-Hui Chen
Tian-Hui Chen
Ze-Xu Chen
Ze-Xu Chen
Ze-Xu Chen
Min Zhang
Min Zhang
Min Zhang
Jia-Hui Chen
Jia-Hui Chen
Jia-Hui Chen
Li-Na Lan
Li-Na Lan
Li-Na Lan
Yongxiang Jiang
Yongxiang Jiang
Yongxiang Jiang
Biometric and Structural Ocular Manifestations of Anterior Megalophthalmos
Frontiers in Medicine
anterior megalophthalmos
ocular manifestations
lens subluxation
cataract
megalocornea
title Biometric and Structural Ocular Manifestations of Anterior Megalophthalmos
title_full Biometric and Structural Ocular Manifestations of Anterior Megalophthalmos
title_fullStr Biometric and Structural Ocular Manifestations of Anterior Megalophthalmos
title_full_unstemmed Biometric and Structural Ocular Manifestations of Anterior Megalophthalmos
title_short Biometric and Structural Ocular Manifestations of Anterior Megalophthalmos
title_sort biometric and structural ocular manifestations of anterior megalophthalmos
topic anterior megalophthalmos
ocular manifestations
lens subluxation
cataract
megalocornea
url https://www.frontiersin.org/articles/10.3389/fmed.2022.732452/full
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