This test may be done to check the health of the inside lining of the eye (retina). It also checks the tiny blood vessels (capillaries) that carry blood to the retina. During the test:
- Photographs are taken of the retina.
- A dye is then injected into the bloodstream through the arm or hand. The dye travels to the capillaries in the eye.
- More photographs are taken of the retina. The dye causes the capillaries to stand out on the photographs.
You may feel brief nausea during the procedure. For a few hours after the test, your skin, eyes, and urine may appear yellow. Talk with your healthcare provider for more information about this test.