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KMID : 1151620190040020055
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Journal of Retina
2019 Volume.4 No. 2 p.55 ~ p.62
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Correlation between Visual Acuity and Choroidal Thickness in Patients with Retinal Vein Occlusion
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Noh Gwang-Myeong
Kim Chang-Zoo
Lee Seung-Uk
Lee Sang-Joon
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Abstract
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Purpose: To clarify the correlation between visual acuity and changes of choroidal thickness in retinal vein occlusion patients (RVO)
Methods: A total of 100 patients were reviewed and 35 patients (35 eyes) were included. They were diagnosed with RVO through fundus photography and fluorescein angiography. And they were at least 6 months of follow-up. We compared the choroidal thickness, macular ischemia range, macular thickness and range, initial visual acuity, final visual acuity, and treatment methods. The choroidal thickness, degree of macular ischemia, and edema were assessed by fluorescein angiography and optical coherence tomography (OCT) within 2 weeks of the initial visit. We analyzed changes of subfoveal choroidal thickness with enhanced depth imaging of Spectralis HRA+OCT
Results: The mean initial choroidal thickness of 35 eyes was 293.26 ± 61.63 μm, which was significantly thicker than that of the opposite eye (240.77 ± 69.79 μm). Choroidal thickness decreased after 6 months of treatment. The changes in the initial and late choroidal thickness were 50.0 ± 29.5 μm and 26.6 ± 21.6 μm, respectively, in the visual acuity group and the non-visual acuity group, respectively. The changes in central macular thickness were 226.1 ± 165.7 μm and 73.5 ± 81.5 μm, respectively (p = 0.004, p = 0.018). Visual acuity showed no statistically significant correlation
Conclusions: There was no significant correlation between visual acuity and choroidal thickness in RVO patients. Rather, it correlated with changes in choroidal thickness and central macular thickness. This suggests that there is a pathophysiologic relation between macular edema and choroidal thickness.
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KEYWORD
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Choroidal thickness, Enhanced depth imaging, Retinal vein occlusion, Visual acuity, Visual prognosis
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