Black spots in the eye. What's going on?

Black spots in the eyeball, that is, black spots in the white of the eye, generally there are two cases. The first case is more common in children, above or below the white of the eye, there are dark black or dark brown irregular black spots. Generally, this case is considered that the scleral tissue is relatively thin, and the deep tissue, especially the color of deep blood vessels, is dark gray or dark black spots. Generally, this kind of situation is not important, does not hurt, does not itch, normal also does not affect the development of vision, observation can be the main. There is also a situation is more common in adults, that is, there is black pigmentation, you can see in the white surface of the eye, there are obvious black pigment particles or pigmented moles, this kind of situation is mainly caused by pigmentation, may be due to external stimulation or inflammation left behind, or is born. Generally, this kind of situation does not affect vision, but if it affects beauty, this kind of pigmentation or pigmented mole can be removed by surgery.