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Pan retinal photocoagulation is a laser treatment that places many small burns in the peripheral retina to control abnormal blood vessel growth. It lowers oxygen demand and reduces signals that drive neovascularization. PRP is a mainstay for proliferative diabetic retinopathy and similar conditions. The goal is to prevent severe bleeding and retinal detachment.
read more about pan retinal photocoagulation prp ...By treating the peripheral retina, PRP reduces the stimulus for fragile vessels that can bleed or pull the retina. Central vision is spared while the periphery receives planned burns. Sessions may be split over several visits to limit discomfort. Anti VEGF injections can be combined when needed.
The treatment changes oxygen demand across the retina. This reduces the drive for new, fragile vessels to grow. Over time, better balance lowers the chance of bleeding or traction. Follow up visits check whether the response is steady.
Anesthetic drops are used, and a special contact lens helps focus the laser. Patients see bright flashes and may feel mild stinging. Temporary blur or light sensitivity can follow. Most resume routine activities soon after.
Night vision, color perception, and side vision can decrease slightly. Swelling of the macula can occur and is monitored. Discomfort is usually brief. Benefits are focused on preventing sight threatening events.
People with proliferative diabetic retinopathy, retinal vein occlusion with neovascularization, or certain ischemic conditions are candidates. Timing depends on disease activity and imaging. Close follow up continues after laser to track response. Lifestyle and systemic control remain vital.
Will PRP improve vision right away? It aims to prevent severe loss rather than boost clarity.
Is PRP painful? Discomfort is usually manageable with topical anesthesia.
Can PRP be repeated? Yes, touch up sessions are sometimes done if new vessels return.
Panretinal Photocoagulation. EyeWiki. https://eyewiki.org/Panretinal_Photocoagulation. January 7, 2026.
Laser Treatment for Diabetic Retinopathy. National Eye Institute (NEI). https://www.nei.nih.gov/eye-health-information/eye-conditions-and-diseases/diabetic-retinopathy/laser-treatment-diabetic-retinopathy. December 6, 2024.
Diabetes-Related Retinopathy. Cleveland Clinic. https://my.clevelandclinic.org/health/diseases/8591-diabetic-retinopathy. February 26, 2024.
Retinal diseases — Diagnosis and treatment. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/retinal-diseases/diagnosis-treatment/drc-20355827. March 8, 2024.
Panretinal photocoagulation (PRP) laser treatment. Kingston and Richmond NHS Foundation Trust. https://www.kingstonandrichmond.nhs.uk/patients-and-families/patient-leaflets/panretinal-photocoagulation-prp-laser-treatment. January 29, 2025.