The iris has pigmentation that determines the eye color. Irises are classified as being one of six colors: amber, blue, brown, gray, green, hazel, or red. Often confused with hazel eyes, amber eyes tend to be a solid golden or copper color without flecks of blue or green typical of hazel eyes. Blue eyes have a low level of pigment present in the iris.
Answers (3). Mackenzie raphael. Allergy will cause eye itch, erythema, swelling of the eyelids and tears, and of course it also will cause sensitivity to light. You had better wear the eyeglasses, not the contact lenses, and reduce the sunshine to hurt your eyes. When you feel eye itch, please do not rub your eyes, and do not clean them by water either. You need use the eyedrop to cure them, and cromoglycate, ivy are the good choice.
The retina of the eye has two types of light-sensitive cells called rods and cones. Both are found in the retina which is the layer at the back of your eye which processes images. Rods work in low light conditions to help night vision, but cones work in daylight and are responsible for colour discrimination.he retina of the eye has two types of light-sensitive cells called rods and cones. Both are found in the retina which is the layer at the back of your eye which processes images. Rods work in low light conditions to help night vision, but cones work in daylight and are responsible for colour discrimination.