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KMID : 1813520180070010012
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Journal of the Korean Glaucoma Society
2018 Volume.7 No. 1 p.12 ~ p.23
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Predictive Factor Analysis of Sectoral Visual Field Progression in Myopic Primary Open Angle Glaucoma
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Moon Hae-In
Sung Kyung-Rim
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Abstract
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Purpose : To analyze predictive factors and the progression rate of sectoral visual field progression in myopic primary open angle glaucoma.
Methods : In this retrospective chart review study, eyes were categorized into mild to moderate myopic group (MMG, 0 to -6 diopter [D]) and high myopic group (HMG, < -6D) according to an axial length (26.0 mm) and/or spherical equivalent. The disc tilt ratio, disc torsion angle, torsion angle degree, initial intraocular pressure (IOP), mean IOP, disc hemorrhage, average retinal nerve fiber layer thickness and central corneal thickness were compared and analyzed. Mean deviation (MD) in each sector determined by glaucoma hemifield test location of the visual field was calculated and the progression rates of MD in each sector were obtained with linear regression analysis. Predictive factor for MD progression was determined by using linear regression analysis.
Results : A total of 83 eyes were included. There were significant differences in baseline age (52.6 ± 12.1, 45.5 ± 13.4 years, p = 0.013) and disc tilt ratio (1.2 ± 0.1, 1.3 ± 0.2, p < 0.001) between 2 groups. In linear regression analysis for predicrive factors, initial IOP, mean reduction of IOP during follow-up (%), and baseline age were generally associated with progression in MMG. In HMG, IOP and disc hemorrhage were significant predictive factor for progression in superior visual field.
Conclusions : Factors associated with visual field progression were different between mild to moderate and high myopic POAG.
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KEYWORD
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Myopia, Glaucoma, Visual field
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