Common diabetes drug may help preserve eyesight as people age

A common medication for diabetes may slow down age-related vision loss, according to new research.

People with diabetes who were over the age of 55 and taking metformin — a prescription drug most commonly used to treat type 2 diabetes — were 37% less likely to develop intermediate age-related macular degeneration (AMD) over five years compared to those not taking it.

Researchers at the University of Liverpool used eye pictures from 2,000 people who received routine diabetic eye disease screenings over the course of five years.