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Yes, contacts do rotate and move around on the surface of the eye when you blink. They return to the centre of the eye over the pupil because they are shaped to match the curve of the eye there. Some contacts are specially shaped or weighted so they rotate to return to a particular orientation. They are used for correcting astigmatism, where the eye cannot focus at the same distance horizontally and vertically because it is uneven in shape.

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15y ago

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