ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2026
Evaluation of anterior segment and lamina cribrosa parameters in primary open-angle glaucoma, pseudoexfoliation glaucoma, and healthy controls.
Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo compare anterior segment and lamina cribrosa parameters between primary open-angle glaucoma (POAG) and pseudoexfoliation glaucoma (PEXG) using swept-source optical coherence tomography (SS-OCT).
methodsThis cross-sectional, observational study included 34 POAG, 30 PEXG, and 30 healthy control eyes. The groups were comparable for age, sex, axial length, and anterior chamber depth. Temporal corneoscleral sections and optic disc radial scans were obtained via SS-OCT. Schlemm's canal area (SCA), trabecular meshwork thickness (TMT), scleral spur length (SSL), and anterior scleral thickness (AST) were measured using ImageJ. Lamina cribrosa thickness (LCT) and curvature index (LCCI) were assessed.
resultsSCA was significantly reduced in both glaucoma groups compared to controls (adjusted p = 0.001 for PEXG, adjusted p = 0.003 for POAG; overall p < 0.001). In POAG, perilimbal AST (AST0, AST1), TMT and SSL were significantly lower than in controls (p < 0.05); these perilimbal measurements did not differ significantly from those of healthy controls in PEXG (all p > 0.18). LCCI was highest in POAG, while LCT was thinnest in PEXG (p < 0.001). A nominal positive correlation was observed between SSL and AST0 in healthy eyes, alongside nominal negative correlations between SSL and LCCI in both glaucoma groups (all uncorrected p < 0.05); however, none remained statistically significant after false discovery rate (FDR) correction (all q > 0.05).
conclusionDifferences in anterior scleral, iridocorneal angle, and lamina cribrosa parameters indicate shared structural features but distinct anatomical profiles in POAG and PEXG. Because correlational findings did not survive FDR correction, the proposed structural links between the anterior and posterior segments must be interpreted as exploratory, warranting further longitudinal studies.
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