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KMID : 0360220240650010035
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Journal of the Korean Ophthalmological Society
2024 Volume.65 No. 1 p.35 ~ p.43
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OCT Biomarkers Predicting Recurrence of Macular Edema Secondary to Branch Retinal Vein Occlusion
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Lee Min-Sub
Moom Da-Young
Lee Hyung-Woo
Chung Hye-Won
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Abstract
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Purpose: We evaluated factors predicting the recurrence of macular edema in patients with branch retinal vein occlusion using optical coherence tomography (OCT).
Methods: This study enrolled 55 patients diagnosed with branch retinal vein occlusion who presented to the outpatient clinic between March 2022 and March 2023. A retrospective analysis categorized patients into non-recurrence and recurrence groups.
Data on visual acuity, spherical equivalent, intraocular pressure, number of injections, and follow-up duration were collected from medical records. OCT images were obtained before and 6 months after intravitreal injection to measure and analyze central retinal thickness, subfoveal choroidal thickness, and disorganization of retinal inner layers.
Results: No statistically significant difference was observed in the central retinal thickness change before and after treatment between the groups. Although no significant differences were observed in visual acuity between the two groups before treatment, significant improvement in visual acuity was observed in the non-recurrence group after 6 months of treatment. The non-recurrence group was younger compared to the recurrence group; moreover, the intraocular pressure in non-recurrence patients decreased significantly during the 6-month treatment period. In addition, a decrease in subfoveal choroidal thickness before and after treatment, the difference in subfoveal choroidal thickness between the affected eye and the fellow eye before treatment, and the reduction in disorganization of retinal inner layers before and after treatment were associated with a favorable prognosis without recurrence.
Conclusions: Changes in subfoveal choroidal thickness before and after treatment, variations in subfoveal choroidal thickness between the affected and fellow eyes before treatment, and the degree of disorganization of retinal inner layers exhibited significant associations with the recurrence of macular edema. This is significant because it allows for predictions based on baseline OCT images.
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KEYWORD
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Branch retinal vein occlusion, Macular edema, Optical coherence tomography, Prediction, Recurrence
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