Commonly referred to as colour blindness, a condition that affects approximately 1 in 12 men and 1 in 200 women in the world. There are different causes, with the vast majority of people with deficient colour vision the result of genetics.
A pterygium is a wing shaped, vascular, fleshy growth that originates on the conjunctiva and can spread to the corneal limbus and beyond. It may slowly grow but rarely grows so large that the pupil is covered. Early in the disease process, pterygia are usually...
