Abstract
Objective To observe the the changes of macular choroidal thickness after panretinal photocoagulation (PRP) in patients with diabetic retinopathy (DR). Methods Fifty eyes of 32 patients with non-proliferative diabetic retinopathy (NPDR) underwent PRP, and 36 eyes of 25 normal subjects were selected as control group. All cases received examination by Heidelberg SD-OCT before and 1 week, 1, 3 months after PRP. Subfoveal choroidal thickness (SFCT), and superior, inferior, nasal, temporal choroidal thickness 750μm around macular central fovea were measured. Results The macular choroidal thickness of the eyes with NPDR before PRP was thinner than that of normal subjects. One week after PRP, the choroidal thickness of NPDR group was significantly thicker than that before PRP. The choroidal thickness got thinner from 1 week to 3 months after PRP. Conclusion The thickness of macular choroid can be seen intuitively by the SD-OCT, and it tends to thin caused by NPDR. The choroidal thickness can be significantly increased after PRP in the short term, but choroid thickness will gradually get thinner with time after treatment. Key words: Photocoagulation, panretinal; Retinopathy, diabetic; Spectral-domain optical coherence tomography; Choroid thtickness
Published Version
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