Fluorescensangiografia

Fluorescein angiography is a medical imaging technique used to examine blood flow in the retina and choroid, the vascular layers of the eye. It involves injecting a fluorescent dye, typically fluorescein sodium, into a vein in the arm. As the dye circulates through the bloodstream, it reaches the blood vessels in the eye. A specialized camera with a blue light source and filters is then used to capture a series of rapid photographs or a video of the eye's interior. The fluorescein dye absorbs the blue light and then emits a yellowish-green light, making the blood vessels clearly visible.

This diagnostic tool is crucial for detecting and monitoring a variety of eye conditions. It helps identify abnormalities in blood vessel structure and function, such as leakage, blockages, or the growth of new, abnormal blood vessels. Conditions commonly diagnosed and managed using fluorescein angiography include diabetic retinopathy, age-related macular degeneration (AMD), retinal vein occlusions, choroidal neovascularization, and inflammatory conditions of the eye. The images produced provide detailed information about the vascular network, aiding ophthalmologists in making accurate diagnoses and planning appropriate treatment strategies. The procedure is generally safe, though minor side effects like temporary yellowing of the skin and urine can occur.