Fluorescein angiography
Fluorescein angiography is a medical procedure used to visualize the blood vessels in the retina and choroid layers of the eye. This procedure involves the injection of a fluorescent dye, called fluorescein, into the bloodstream. The dye travels to the blood vessels in the eye, allowing them to be photographed.
Procedure[edit | edit source]
The procedure begins with the administration of a local anesthetic to numb the eye. The fluorescein dye is then injected into a vein in the arm. The dye travels through the bloodstream to the blood vessels in the eye. A special camera equipped with filters that highlight the dye is used to take photographs of the blood vessels as the dye passes through them. The images can then be analyzed to identify any abnormalities in the blood vessels.
Uses[edit | edit source]
Fluorescein angiography is used to diagnose and monitor a number of eye conditions, including diabetic retinopathy, macular degeneration, and retinal vein occlusion. It can also be used to evaluate the effectiveness of treatments for these conditions.
Risks[edit | edit source]
While fluorescein angiography is generally safe, there are some risks associated with the procedure. These include allergic reactions to the dye, which can cause itching, hives, or in rare cases, anaphylaxis. Other potential complications include nausea, vomiting, and temporary discoloration of the skin and urine.
See also[edit | edit source]
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