By examining these tissues more closely with the pictures your ophthalmologist can diagnose many eye diseases and keep track of changes over time.
Capturing the image takes less than 30 minutes.
Here is what to expect:
The ophthalmologist’s assistant will put drops in your eyes to dilate (widen) your pupil.
A colored dye (yellow), called fluorescein is injected in a vein, usually in your arm.
It takes about 10 - 15 seconds for the dye to travel to the eye.
The yellow dye highlights the blood vessels and enables your eye doctor to look at your choroid and retina.
As the dye passes through your retina and choroid, an ophthalmic technician takes a series of preliminary photographs using a special camera, called the fundus camera.
These pictures become a roadmap to help your ophthalmologist see where to focus treatment if a disease is detected.
Dr. Houston with a patient.
In these images, the macular hole and areas of active wet macular degeneration are highlighted by the fluorescein dye, which circulates through the blood vessels in the back of the eye.
Your vision will be immediately affected by the bright lights of the camera. This will resolve but your vision will stay blurry for several hours from the eye drops used to dilate your pupils.
Also, your eyes will be very sensitive to light. Wearing sunglasses after your test will make you more comfortable.
Your urine may look orange or bright yellow for up to 24 hours after angiography because your kidneys must filter the dye out of your blood.
You may feel a burn on your skin if dye leaks during the injection. The sensation should subside in a few minutes.
Rarely, allergic reactions to the dye occur. People who are allergic to the fluorescein dye may get hives or itchy skin. Very rarely, a person may have breathing or other serious problems. Please, tell your doctor if you have had previous reactions with yellow dye used in angiography.
Allergic reactions can be treated by your doctor with the use of medication.
Using these pictures, the eye doctor can monitor your retina and other parts of the eye for any leakage or abnormality.
A colored dye is injected into your arm, where it travels through blood vessels to your retina. Using a special camera, pictures of the retinal vessels glow with dye.
Your eye doctor can diagnose problems using this test and the images as a roadway to guide treatment.
This image shows evidence of a macular hole.
It is highlighted by the fluorescein dye, circulating through the blood vessels of the retina.
Retina: Layer of nerve cells lining the back wall inside the eye. This layer senses light and sends signals to the brain so you can see.
Choroid: Part of your eye between the sclera and the retina. The choroid contains blood vessels and connective tissue.
What is a Retina Specialist?
Make sure blood sugar is under control for at least a week before an eye exam
and your blood sugar levels are stable.
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