Six months after the surgery, the researchers surgically removed the monkey's eye to examine the patch. They found that new visual cells — rods, which primarily handle night vision, and cones ...

According to the research team's study, not only was the transplant perfectly safe and relatively low-impact but the monkey's performance on vision-based tests improved following its recovery.

This is the product's overall performance score, based on key tests conducted by our industry experts in the CHOICE labs.