Measure of Keratoconus Progression Using Orbscan II

METHODS: Fifty-six eyes of 35 patients (mean age: 25.9 5.7 years, range: 18 to 35 years) with keratoconus were reviewed whose sex, age, visual acuity, refractive error, atopy, eye rubbing habits, family history of keratoconus, hard contact lens wear, intraocular pressure, keratometric reading, corneal shape, corneal thickness index, and corneal asphericity had been determined. The keratometric change over 3 years was evaluated using Orbscan II, with 6-month intervals between each examination. All patients selected had less than moderate keratoconus on initial examination.