Help develop your visual skills by taking this test! See if you can spot the different one in just 3 seconds. If you can, congratulations, your vision is amazing!
This lets the doctor see how well blood moves in your retina. It helps diagnose diabetic retinopathy, retina detachment, and macular degeneration. The doctor will inject a special dye, called fluorescein, into a vein in your arm. It travels quickly to blood vessels inside your eye. Once it gets there, the doctor uses a camera with special filters to highlight the dye. They takes pictures of the dye as it goes through the blood vessels in the back of your eye. This helps them spot circulation problems, swelling, leaking, or abnormal blood vessels.