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KMID : 0360220210620121626
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Journal of the Korean Ophthalmological Society
2021 Volume.62 No. 12 p.1626 ~ p.1636
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Choroidal Thickness in Advanced Glaucoma Patients
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Park Do-Hee
Park Sang-Woo
Sung Mi-Sun
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Abstract
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Purpose: We investigated choroidal thickness according to the classification of glaucoma and related factors in patients with advanced glaucoma.
Methods: The present study included 133 eyes of 133 advanced glaucoma patients with a mean deviation of <-12 dB. Patients were classified into primary open angle glaucoma (POAG) and normal-tension glaucoma (NTG) groups. Factors related to the subfoveal and peripapillary choroidal thickness were analyzed using linear regression analysis.
Results: The mean peripapillary choroid thickness was 99.20 ± 46.85 μm in the NTG group, which was significantly thinner than in the POAG group (121.85 ± 45.39 μm, p = 0.006). Additionally, in the sectoral comparison, the NTG group had thinner choroids than the POAG group in all areas (p < 0.05 for all). In the linear regression analysis, glaucoma class (p = 0.007), age (p = 0.005), and intraocular pressure (IOP) (p = 0.024) significantly affected the peripapillary choroid thickness. Moreover, age (p = 0.029) and macular thickness (p = 0.002) were significantly associated with subfoveal choroid thickness.
Conclusions: In advanced glaucoma, low baseline IOP, NTG, and old age were significantly associated with a thin peripapillary choroid, suggesting an association between thin peripapillary choroid and the etiology of NTG. Further studies are needed to clarify the significance of a thin choroid in the pathogenesis of glaucoma.
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KEYWORD
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Advanced glaucoma, Choroidal thickness, Normal tension glaucoma, Primary open angle glaucoma
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