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KMID : 1039020170400020071
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The Ewha Medical Journal
2017 Volume.40 No. 2 p.71 ~ p.76
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Change in Subfoveal Choroidal Thickness after Argon Laser Panretinal Photocoagulation
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Cho Ga-Eun
Kim Ah-Young
Cho Hee-Yoon
Kim Yun-Taek
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Abstract
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Objectives: To evaluate changes in subfoveal choroidal thickness (SFCT) and macular thickness as measured by enhanced depth imaging spectral-domain optical coherence tomography (EDI-OCT) after argon laser panretinal photocoagulation (PRP) in patients with severe diabetic retinopathy.
Methods: This prospective, comparative case series included 21 patients (28 eyes) with severe diabetic retinopathy. All patients underwent three sessions of PRP. The SFCT and macular thickness were measured using EDI-OCT at baseline and one week after completion of 3 sessions of PRP.
Results: SFCT before PRP was 318.1±96.5 μm and increased to 349.9±108.3 μm; P=0.001 after PRP. Macular thickness significantly increased at one week after PRP from 273.1±23.9 μm at baseline 295.8±25.3 μm at one week; (P<0.001). No significant relationship between the changes in macular thickness and SFCT was observed (r=?0.13, P=0.52).
Conclusion: PRP induced increases in both SFCT and macular thickness. Changes in SFCT did not correlate with changes in macular thickness.
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KEYWORD
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Choroid, Diabetic retinopathy, Tomography, optical coherence, Macular edema, Photocoagulation
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