Can you really bleach your 'yellow' eyesball? (photos)

Actress Taraji P. Henson is known to have yellow eyes but there are reports that the 44 year old actress recently got eye whitening surgery. It's a surgery that whitens the eye by removing the outer layer of the white part of the eyes. Taraji (supposedly) pictured before and after the surgery. But is a surgery that is even possible? #Novicegirlquestion!