Early Symptoms and Screening Methods of Diabetic Retinopathy

Among people with diabetes in Chinese mainland, the prevalence of diabetic retinopathy (DR) is 23%.
It is a chronic diabetic complication and the leading cause of blindness in adults.
Early Symptoms of Diabetic Retinopathy

Decline in vision
Floaters (dark shadows in front of the eyes)
Distorted vision

Screening Methods

Type 2 diabetes: fundus examination and other ophthalmologic tests as soon as possible after diagnosis.
Type 1 diabetes: complete ophthalmologic examination within 5 years after diagnosis.