Computer model of keratoscope to study corneal surface

Influence of the corneal surface form on the ring image shape of the measuring target is studied. The cornea is represented by a second-order surface equation. Eccentricity, curvature radius and the torusness values can be varied in this equation. The new algorithm of the keratogram mathematical processing is suggested. The influence of the keratoscope lateral and longitudinal misalignment on the patient’s eye is investigated.