Generally, people with mild NPDR do not have any visual loss. A dilated eye exam is the only way to detect changes inside the eye before loss of vision begins. People with diabetes should have an eye examination at least twice a year. More frequent exams may be necessary after diabetic retinopathy is diagnosed.
People with PDR experience a broader range of symptoms. They may see dark floaters, experience loss of central or peripheral vision, experience visual distortions or blurriness, experience temporary or permanent vision loss.
