Corneal Topography: Do We Need It?
Sami El Hage, OD, PhD, DSc
Eye Care Associates Houston, Texas
Summary: Modern Orthokeratology is a safe non-invasive clinical procedure to reduce myopia and improve vision. Orthokeratology/CKR contact lenses are made of highly oxygenated material and a reverse geometry shape. Corneal topography is an integral part of this procedure to follow-up on patient?s progress and designing the contact lens. As myopia decreases shape factor increases and the cornea changes from a prolate shape to an oblate shape.
Keywords: Orthokeratology, CKR, prolate, oblate, corneal topography, reverse geometry contact lens.