The Development And Application Of Digital Fluorescence Fundus Angiography System

Fundus Fluorescein Angiography is a very useful procedure for retinal disease diagnosis and assessment~[1] .Generally, an angiograms method involve injecting fluorescein dye. such as NaFI, into a vein and using a fundus microscope with filter or a fundus camera to observe the dye as it passes through the retinal blood vessels. The blood vessels can be delineated while the dye as it passes through the retinal vasculature, for fluorescein enhancing the vessels's contrast and visibility. As a result, the capillary vessel can be discerned. At the mean time, photographic images are shot continuously by fundus camera, so the result could be more objective, accurate and dynamic, which consequently, provide valuable information for clinical diagnosis, prognosis evaluation, treatment, curative and disease mechanism~[2]. Along with the prevalence of computer technology, digital fundus fluorescein angiography has become a popular trend. That means appling digital images disposal system the doctor can observe dynamic situations of fundus vessels on the computer monitor. With those captured digital images, one can make a clear diagnosis on the most fundus disease. Such as retinal deviation, macular disease, diabetic retinopathy, etc'31. The doctor, then, makes a favorite therapy plan according to its position and character Adopting digital fundus fluorescein angiography system, we can compare fundus images of pre-diagnose and following check-ups, and acquire more information in treatment. Digital fundus fluorescein angiography has been one of the best ways to diagnose fundus disease~[4], which has recently become a standard examine in the ophthalmic community~[5,7] . In China presently, many of the fundus fluorescein angiography equipments relies on foreign corporations, and such equipments are always very expensive, which price are usually higher than 600,000 RMB, so the digital fundus fluorescein angiography still cannot be a common ophthalmic check-up in China.Furthermore, some similar equipments manipulate procedures are complex,...