Choroid: If people have large eyes with thin sclera you can often see the blood vessel system ( the choroid) as a bluish tint through the white of the eye. It is normal.
Answered 2/7/2015
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Thin sclera: Where the sclera is thin, it appears blue from the deoxygenated blood the choroidal blood vessel layter next tot he sclera. This is normal in patients who are nearsighted.
Answered 12/17/2013
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