After 15 years of having diabetes, 98 percent of those with type 1 diabetes and 78 percent of those with type 2 have some degree of retinal damage. The formation of new blood vessels is treated with laser surgery. An ophthalmologist will examine the retina with an ophthalmoscope, which shines bright light intoo the back of the eye and allows for a close look at the blood vessels of the retina. Sometimes loss of central vision when reading or driving, loss of the ability to see colon, and blurriness of vision are the only signs of diabetic retinopathy. Robertson D expert opinion. The retina detects light and converts it to signals sent through the optic nerve to the brain. The retina records the images focused on it and converts those images into electrical signals, which the brain receives and decodes. This is because damage to much of the retina can occur before your vision is affected. Vitreous haemorrhage by itself usually doesn't cause permanent vision loss. Doppler optical coherence tomography.
In the case of Diabetic Retinopathy, as the diabetes progresses, the blood vessels that feed the retina become damaged in different ways. For abnormal blood vessel growth neovascularization, the laser treatments are delivered over the peripheral retina. The key to treating retinopathy is managing the underlying causes of this condition. Some of the kinds of damage that your doctor may see in your retina are hypertensive retinopathy, a complication of high blood pressure hypertension, and diabetic retinopathy, a complication of long-term diabetes. He or she uses a lighted instrument called an ophthalmoscope.