Pan-Retinal Photocoagulation
Diseases such as diabetic retinopathy can affect blood vessels of the retina causing inadequate blood supply. When the retina senses an inadequate supply of blood it signals for the formation of new blood vessels. However, these new blood vessels are often weak and can cause bleeding, scarring, and vision loss. In order to control the growth of these vessels the ophthalmologist may make hundreds of small laser burns on the retina to stop the blood vessels from growing. Essentially, the loss of retina balances the nutritional requirement and the body stops signaling for the growth of new, dangerous blood vessels. The eye must be closely monitored to ensure that there are no more abnormal blood vessels being formed. If more abnormal blood vessels are being formed, then additional laser treatment is needed. If the underlying disease, usually diabetes, is controlled, then the retina will stabilize long-term, however if the underlying disease is poorly controlled there may be increased damage to the retina causing the need for additional laser procedures.