PRP is a treatment for severe diabetic retinopathy or retinal vein occlusions. Its goal is to shrink abnormal, leaky blood vessels and reduce the risk of bleeding and retinal detachment. The procedure is done with numbing drops and taking painkiller medication to ensure comfort. Your doctor will place a contact lens on your eye. The laser (usually green or yellow) is applied to the peripheral retina (the sides), creating hundreds of tiny, patterned burns. These burns reduce the retina's demand for oxygen, which signals the abnormal vessels to regress. Treatment is typically spread over two or more sessions, each lasting 10-20 minutes, as your doctor plans. You will see bright flashes of light and may feel a dull ache or tapping sensation.
Before procedure
Do not drive yourself. Your pupil will be widely dilated, and your vision will be blurry afterward.
Eat normally and take your medications.
Discuss pain management options with your doctor if you are concerned. Inform your doctor of all medications, especially if you take blood thinners.
After procedure
Your vision will be very blurry for several hours and may remain somewhat blurry for a few days.
You may have a headache or a sore, gritty feeling in the eye.
Use the prescribed anti-inflammatory eye drops as directed.
Avoid heavy lifting and strenuous exercise for a few days.
Peripheral (side) vision and night vision may be permanently reduced as an expected trade-off to save central vision.
Complication and alarm signs
This is a very safe preventative procedure. Complications are rare but can include bleeding, increased eye pressure, or inadvertent laser burns to the central vision area. The laser can sometimes fail to prevent detachment if new tears form.
This is critically important: The laser does not fix floaters or flashes caused by the initial vitreous tugging. Contact your doctor immediately if you experience: A sudden, significant increase in floaters, new flashes of light, or any new shadow, curtain, or gray area in your peripheral vision, as these are signs of a new tear or detachment.