Objective  To observe the autofluorescence of dated fundus hemorrhage excited by the excitaton light with different wavelength. Methods  A total of 23 patients (23 eyes) with dated fundus hemorrhage were observed. The blue light under the fundus fluorescence angiography (FFA) mode of Topcon 50IA fundus camera was the excitation light, and the whiteandblack images of 4 patients and colorized images of 16 patients were collected, respectively. The autofluorescence of dated fundus hemorrhage in other 3 patients was observed by excitation of scanning laser with the wavelength of 488 nm and 795 nm emitted from Heidelberg retina angiography apparatus (HRA2). Results  The black and white images showed the b red autofuorescence of dated fundus hemorrhage in 4 patients, while the colorized ones revealed the red autofluorescence in 16 patients. The hemorrhage autofluorescence could be also excited by blue laser (488 nm) and infrared laser (795 nm) using HRA2, but with different extent and intensity. Co nclusions  Due to the complex composition of dated fundus hemorrhage, different excitation light can excite the autofuorescence with different wavelength.

Citation： LI Ruifeng,YANG Rong,LIU Zhiqiang,et al. Autofluorescence of dated ocular fundus hemorrhage excited by different excitation light. Chinese Journal of Ocular Fundus Diseases, 2007, 23(6): 388-390. doi: Copy