Histopathologic Findings of Chorioretinal Adhesion After Photocoagulation of the Thretinal Break.

Kim, Sahng Yeon; Chung, Hak Sung; Kwon, Oh Woong; Lee, Sung Chul

Original Article

Journal of the Korean Ophthalmological Society 1991;32(2):167-173.
Published online February 1, 1991.

Histopathologic Findings of Chorioretinal Adhesion After Photocoagulation of the Thretinal Break.

Sahng Yeon Kim, Hak Sung Chung, Oh Woong Kwon, Sung Chul Lee

Department of Ophthalmology, Yonsei University College of Medicine, Korea.

망막열공 치료로서의 광응고술 시행후 나타나는 조직병리학적 변화

김상연(Sahng Yeon Kim),정학성(Hak Sung Chung),권오웅(Oh Woong Kwon),이성철(Sung Chul Lee)

Abstract

Adult albino rabbits were used in this study. The retina was treated with laser photocoagulation around the retinal break. The histopathologic findings were evaluated with light and electron microscopes to determine how quickly chorioretinal adhesion was produced after photocoagulation. Adhesion between the rod and cone layer and the pigment epithelium appeared within 1 hour after photocoagulation, probably due to direct burn effect of the laser. A scar tissue appeared in the chorioretinal lesion 5 days after photocoagulation, derived from the proteinaceous coagulum and accompanying fibrosis.

Key Words: laser photocoagulation;retinal break;chorioretinal adhesion;Retinal pigment dpithelium;rod and cone layer of the retina