Related Experiment Video
Updated: Jul 15, 2026

11:04
An In-House-Built and Light-Emitting-Diode-Based Photodynamic Therapy Device for Enhancing Verteporfin Cytotoxicity in a 2D Cell Culture Model
Published on: January 13, 2023
Photodynamic therapy for subretinal new vessels.
Sung Chul Lee1, Jeong Hun Bae, Hyung Jun Koh
1Department of Ophthalmology, Yonsei University College of Medicine, 134 Sinchon-Dong, Seodaemun-Gu, Seoul, Korea. sunglee@yumc.yonsei.ac.kr
Yonsei Medical Journal
|April 28, 2007
Summary
Photodynamic therapy effectively reduced abnormal, large, subretinal new vessels in two patients. This treatment shows promise for specific types of choroidal neovascularization (CNV).
Area of Science:
- Ophthalmology
- Vascular Biology
- Photomedicine
Background:
- Photodynamic therapy (PDT) targets endothelial cell death and blood vessel occlusion.
- PDT is a recognized treatment for specific forms of choroidal neovascularization (CNV), including classic CNV and myopic CNV.
Observation:
- The study presents two cases of unusual, large, subretinal new vessels originating from the choroid.
- These abnormal vessels presented a unique clinical challenge.
Findings:
- Treatment with photodynamic therapy (PDT) resulted in a noticeable diminishment of these subretinal new vessels.
- The observed reduction suggests PDT's efficacy in managing these specific vascular abnormalities.
Implications:
- These findings suggest PDT may be a viable therapeutic option for managing rare and complex cases of subretinal neovascularization.
- Further research could explore PDT's role in other atypical presentations of CNV.

