Photodynamic Therapy (PDT) uses a medication known as Visudyne. Visudyne is a light-activated drug that is injected into the blood stream and travels to the abnormal blood vessels in the eye. It is then activated in the eye by a non-heat (or non-thermal) laser in order help slow vision loss. Photodynamic Therapy works by destroying abnormal blood vessels in the back of they eye.
What Expect During Treatment
- You will receive an infusion of the light-activated medication Visudyne in your arm or hand for 10 minutes. The medication will travel through your body and accumulate in the blood vessels behind the affected eye.
- Your doctor will apply a drop to numb your eye. Fifteen minutes later, a special contact lens will be held on your eye while the non-heat or “cool laser” shines onto the affected area of your retina for 83 seconds.
- The laser light will activated the Visudyne that has selectively accumulated in the affected area and close the abnormal blood vessels.
Before you go to your eye doctor’s office for treatment, set aside items to protect you from the bright sunlight. Bring dark sunglasses, gloves, a wide-brimmed hat, long-sleeved shirt, long pants, socks and shoes.
Prior to having PDT done your doctor may request you have a Fluorescein Angiogram done to better visualize the abnormal blood vessels in your eye.
You will be more sensitive to bright light and direct sunlight for up to two days following treatment. For these two days only, you should avoid:
- Direct sunlight
- Bright indoor light
- Tanning salons
- Bright halogen lighting
- High-power lighting in surgical operating rooms and dental offices
- Light-emitting medical devices
Wear protective clothing and dark sunglasses when going outdoors. UV sunscreens are NOT effective in protecting against light sensitivity.
Follow the precautions to minimize the risk of photo-sensitivity. But you don’t have to stay in the dark. In fact, exposing your skin to normal indoor light helps remove the drug from your body.
**PLEASE CALL +1 (780) 448-1801 if you have any questions or concerns regarding your recent Photodynamic Therapy**