Eye angiography

Eye angiography, also known as fundus fluorescein angiography (FFA) or fluorescein angiography (FA), is a diagnostic procedure used in ophthalmology to evaluate the blood vessels in the retina, choroid, and the iris of the eye. This technique is crucial for diagnosing and managing various eye diseases and conditions, including diabetic retinopathy, macular degeneration, and retinal vessel occlusions.

Procedure

Eye angiography involves the injection of a fluorescent dye, typically fluorescein, into the bloodstream. The dye travels through the body and into the blood vessels of the eye. As the dye passes through the vessels in the eye, a special camera takes photographs of the fluorescence emitted by the dye. These images help in identifying any abnormalities in the blood vessels, such as blockages, leakages, or abnormal growth.

Types of Eye Angiography

There are primarily two types of eye angiography:

• Fluorescein Angiography (FA): Utilizes fluorescein dye to highlight the blood vessels in the retina and choroid.
• Indocyanine Green Angiography (ICGA): Uses indocyanine green dye for better imaging of the choroid, which is useful in diagnosing conditions affecting the deeper layers of the eye.

Indications

Eye angiography is indicated for the diagnosis and management of various retinal conditions, including:

• Diabetic retinopathy
• Macular degeneration
• Retinal vein occlusion
• Retinal artery occlusion
• Macular edema
• Retinal detachment

Risks and Complications

While eye angiography is generally safe, there are potential risks and complications associated with the procedure, such as:

• Allergic reaction to the dye
• Nausea and vomiting
• Skin discoloration
• Mild irritation or discomfort

Conclusion

Eye angiography is a vital diagnostic tool in ophthalmology, providing detailed images of the eye's blood vessels. It plays a crucial role in the diagnosis, management, and monitoring of various eye conditions. Despite its benefits, patients should be aware of the potential risks and discuss any concerns with their healthcare provider.