What causes the sclera to turn black

Blue sclerae are characteristic of a number of conditions, particularly connective tissue disorders.As we age, the sclera gradually becomes yellowish and even brownish.Usually, the spot might not be noticeable until puberty because at this age it becomes bigger and darker too.Normally, the color of sclera is white with a bit of a bluish hue.It happens when your immune system causes your body to make too much of the protein collagen, an important part of your skin.

This is the result of years of damage caused by infection, allergy and environmental toxins and degeneration.4.3k views reviewed >2 years ago thankThis can be caused by blood diseases or by liver diseases.The urine also becomes alkaline.Most of the people who have nevi have it since their birth or it surfaces in their early childhood itself.

Bilirubin is a yellowish pigment that your body produces when it breaks down red blood cells.Chronic allergies, autoimmune diseases and infections may impart reddish or pinkish color to the sclera/conjunctiva.The eyelids usually close after death due to primary flaccidity of the muscles, but the flaccid muscles usually fail to produc.This will increase blood flow to the area and facilitate healing.Greyness can come about from use of silver containing medications or cosmetics.

But the truth is, without regular irrigation, the brain doesn't receive enough oxygen.Check with your ophthalmologist to see why this has happened if this is your eye.Focal color change of sclera (focal discoloration) it can be caused by the following reasons.