👨‍⚕️ Fluorescein angiography is a diagnostic test that uses fluorescein dye and a specialized camera to visualize the retinal blood vessels.

Key uses:

1. Diabetic retinopathy: Detects leakage, neovascularization
2. Macular degeneration: Identifies abnormal blood vessels
3. Retinal vascular occlusions: Diagnoses blockages
4. Tumors: Highlights abnormal vessels

Procedure:

1. Inject fluorescein dye into arm vein
2. Take photographs as dye circulates
3. Capture early and late-phase images

Findings:

• Leakage: Dye escape from vessels
• Blockage: Dark areas (hypofluorescence)
• Neovascularization: Abnormal vessels

Precautions:

• Nausea, yellow skin discoloration (temporary)
• Allergic reactions (rare)
• Pregnancy/breastfeeding: Use cautiously