By Xiu Ying
SÃO PAULO, BRAZIL - Retinopathy is a common complication in diabetic patients. The condition is caused by excess glucose in the blood, which damages blood vessels inside the retina. This may compromise patients' vision and, in later stages, lead to complete blindness.
Currently, 13 million Brazilians have diabetes, according to data from the Brazilian Society of Diabetes (SBD). Out of this total, approximately 5.2 million suffer from impaired eyesight.
Treatments available today include laser photocoagulation . . .