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Updated: Jul 17, 2026

In Vivo Multimodal Imaging and Analysis of Mouse Laser-Induced Choroidal Neovascularization Model
Published on: January 21, 2018
Changes in choroidal thickness in advanced diabetic retinopathy treated with pan-retinal photocoagulation using a
Nari Park1, In Gul Lee2, Jee Taek Kim3
1Department of Ophthalmology, College of Medicine, Chung-Ang University Hospital, 102 Heukseok-ro, Dongjak-gu, Seoul, 06974, South Korea.
Background:
To compare the effect of pan-retinal photocoagulation (PRP) using pattern scanning or conventional laser on subfoveal choroidal thickness (SFChT).
Methods:
Thirty-eight patients (64 eyes) with advanced diabetic retinopathy (DR) who underwent PRP using pattern scanning or conventional laser were included. Changes in SFChT were compared with baseline values at 1, 3, 6, and 12 months after PRP using swept-source optical coherence tomography.
Results:
The conventional laser group showed a statistically significant decrease in SFChT at 1, 3, 6, and 12 months after PRP (P < 0.001). SFChT was significantly decreased at 3 (P = 0.025), 6 (P = 0.004), and 12 (P < 0.001) months after treatment in the pattern laser group.
Conclusion:
Eyes with advanced DR showed a significant reduction in SFChT over 12 months regardless of the type of laser used; however, the reduction was sooner after conventional laser than after pattern laser.
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