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Pupil - white spots. White spots in the pupil is a condition that causes the pupil of the eye to look white instead of black. The pupil of the human eye is normally black. In flash photographs the pupil may appear red. This is called the red reflex by health care providers and is normal. Sometimes, the pupil of the eye may appear white, or the normal red reflex may appear to be white. This not a normal condition, and you need to see an eye care provider right away. There are many different causes of white pupil or white reflex. Other conditions also can mimic white pupil.
Pupil (eye) The pupil is the opening in the centre of the eye. Light enters through the pupil and goes through the lens, which focuses the image on the retina. The size of the pupil is controlled by muscles. There is a circular group, which squeezes the iris smaller, and another group which pulls the iris wider. When more light is needed, the pupil is made larger. In brighter light, the pupil is made smaller. The pupil can be compared with the shutter of a camera. It is surrounded by the iris which is the coloured part of the eye. The lens changes its shape depending on how far away the eye focuses. The focus point is where the eye is focusing on. The light makes the pupil change its size.