Lamina cribrosa morphology and clinical implications in glaucoma with thin central corneal thickness

Abstract This study investigated the relationship between thin central corneal thickness (CCT) and lamina cribrosa (LC) morphology in patients with normal-tension glaucoma. Thin CCT was defined as a corneal thickness of less than 500 μm in both eyes, and all included patients had a corrected intraoc...

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Main Authors: Sang Muk Lee, Min Seon Park, Garam Shin, Sung Uk Baek
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-06069-8
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author Sang Muk Lee
Min Seon Park
Garam Shin
Sung Uk Baek
author_facet Sang Muk Lee
Min Seon Park
Garam Shin
Sung Uk Baek
author_sort Sang Muk Lee
collection DOAJ
description Abstract This study investigated the relationship between thin central corneal thickness (CCT) and lamina cribrosa (LC) morphology in patients with normal-tension glaucoma. Thin CCT was defined as a corneal thickness of less than 500 μm in both eyes, and all included patients had a corrected intraocular pressure of less than 20 mmHg. To investigate the LC-morphological characteristics observed in the Thin-CCT group (N = 60), the Normal-CCT group (N = 36) was set as the control. A subgroup analysis was performed on Progressors and Non-progressors using the visual field’s progression rate to identify progression-related risk factors. The LC posterior displacement index was higher in the Thin-CCT group and the temporal anterior laminar insertion depth (ALID) was deeper in Progressors. In multivariate analyses, the risk of glaucoma progression increased with older age, thinner CCT, worse visual filed, deeper temporal ALID, and deeper mean LC depth. Notably, ALID showed a significant correlation with CCT. These findings suggest that in patients with normal-tension glaucoma, thinner CCT is associated with a more pronounced posterior displacement and deeper insertion of the LC, even under similar intraocular pressure conditions. The altered LC morphology observed in thin CCT may help explain the higher rate of glaucoma progression in this patient population.
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spelling doaj-art-d8dfa790a6a44153b76a2e3df17074a02025-08-20T03:37:31ZengNature PortfolioScientific Reports2045-23222025-07-011511810.1038/s41598-025-06069-8Lamina cribrosa morphology and clinical implications in glaucoma with thin central corneal thicknessSang Muk Lee0Min Seon Park1Garam Shin2Sung Uk Baek3Department of Ophthalmology, Hallym University College of MedicineDepartment of Ophthalmology, Hallym University College of MedicineDepartment of Ophthalmology, Hallym University College of MedicineDepartment of Ophthalmology, Hallym University College of MedicineAbstract This study investigated the relationship between thin central corneal thickness (CCT) and lamina cribrosa (LC) morphology in patients with normal-tension glaucoma. Thin CCT was defined as a corneal thickness of less than 500 μm in both eyes, and all included patients had a corrected intraocular pressure of less than 20 mmHg. To investigate the LC-morphological characteristics observed in the Thin-CCT group (N = 60), the Normal-CCT group (N = 36) was set as the control. A subgroup analysis was performed on Progressors and Non-progressors using the visual field’s progression rate to identify progression-related risk factors. The LC posterior displacement index was higher in the Thin-CCT group and the temporal anterior laminar insertion depth (ALID) was deeper in Progressors. In multivariate analyses, the risk of glaucoma progression increased with older age, thinner CCT, worse visual filed, deeper temporal ALID, and deeper mean LC depth. Notably, ALID showed a significant correlation with CCT. These findings suggest that in patients with normal-tension glaucoma, thinner CCT is associated with a more pronounced posterior displacement and deeper insertion of the LC, even under similar intraocular pressure conditions. The altered LC morphology observed in thin CCT may help explain the higher rate of glaucoma progression in this patient population.https://doi.org/10.1038/s41598-025-06069-8Central corneal thicknessLamina cribrosaPosterior displacement indexAnterior laminar insertion depth
spellingShingle Sang Muk Lee
Min Seon Park
Garam Shin
Sung Uk Baek
Lamina cribrosa morphology and clinical implications in glaucoma with thin central corneal thickness
Scientific Reports
Central corneal thickness
Lamina cribrosa
Posterior displacement index
Anterior laminar insertion depth
title Lamina cribrosa morphology and clinical implications in glaucoma with thin central corneal thickness
title_full Lamina cribrosa morphology and clinical implications in glaucoma with thin central corneal thickness
title_fullStr Lamina cribrosa morphology and clinical implications in glaucoma with thin central corneal thickness
title_full_unstemmed Lamina cribrosa morphology and clinical implications in glaucoma with thin central corneal thickness
title_short Lamina cribrosa morphology and clinical implications in glaucoma with thin central corneal thickness
title_sort lamina cribrosa morphology and clinical implications in glaucoma with thin central corneal thickness
topic Central corneal thickness
Lamina cribrosa
Posterior displacement index
Anterior laminar insertion depth
url https://doi.org/10.1038/s41598-025-06069-8
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AT garamshin laminacribrosamorphologyandclinicalimplicationsinglaucomawiththincentralcornealthickness
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