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Keratoconus of the eye. Keratometry image showing the shape of the cornea of an eye affected by keratoconus. Keratometry produces computerised maps showing the curvature of the cornea that allow doctors to assess the health of the eye. Keratoconus is an inherited condition that causes the central area of the cornea to thin and become more conical. Hard contact lenses can be used to help improve vision.
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