Definition: A keratometer is a medical instrument that uses corneal reflections to measure the curvature of the cornea to determine how flat or steep the cornea is compared to average or normal. It is often used to measure and diagnose conditions such as astigmatism, keratonus, corneal scarring and corneal distortion. A keratometer is commonly used to appropriately fit contact lenses as well.
Also Known As: ophthalmometer
