You are using an older browser version. Please use a supported version for the best MSN experience.

What causes red eye effect in photos?

You’ve no doubt seen or taken pictures where everybody’s eyes are red and they all look like zombies or demons. Fear not, there’s a perfectly logical, science-based reason for the sinister glow.

Latest

Sport

Editor's Picks

World

Featured Partners

image beaconimage beaconimage beacon