Different Disc Characteristics Associated With High Myopia and the Location of Glaucomatous Damage in Primary Open-Angle Glaucoma and Normal-Tension Glaucoma

Journal of Glaucoma
Yu-Wen LanJui-Wen Hsieh

Abstract

PRéCIS:: Disc tilt is a characteristic of high myopia and related to lower wedge-shaped retinal nerve fiber layer (RNFL) defects in normal-tension glaucoma (NTG). In primary open-angle glaucoma (POAG), the direction of disc torsion corresponds to the location of wedge-shaped RNFL defects. To evaluate the disc characteristics in high myopia and the relationships between disc tilt and torsion and the location of wedge-shaped RNFL defects in primary POAG and NTG. The differences in disc properties and clinical characteristics between POAG (n=53) and NTG (n=82), and between high myopic (<-6 D, n=77) and non-high myopic (≥-6 D, n=58) glaucoma, were investigated. The association between disc tilt and torsion and the location of wedge-shaped RNFL defects in POAG and NTG were assessed by univariate and multivariate logistic regression analyses. In NTG, but not in POAG, high myopia eyes had significantly smaller discs, a lower tilt ratio (0.73±0.09), and more disc tilt (56.5%) than did non-high myopia eyes (0.80±0.09, 33.3%). In POAG, eyes with lower wedge-shaped RNFL defects had a significantly smaller torsion angle (-5.44±19.62 degrees, inferior disc torsion) than did eyes with upper defects (9.70±23.62 degrees, superior disc torsion;...Continue Reading

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Citations

Mar 23, 2019·Investigative Ophthalmology & Visual Science·Min ChenKaijun Wang
Aug 11, 2020·Graefe's Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Für Klinische Und Experimentelle Ophthalmologie·Esther Arranz-MarquezAndreas Katsanos

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