Assessment of the impact of keratoconus on vision-related quality of life.

Purpose: We determined if the Impact of Vision Impairment (IVI) is a valid questionnaire to measure the vision-related quality of life (VRQoL) in keratoconus patients, and investigated if the VRQoL varied with disease severity in this sample.

Methods: WE RECRUITED 160 CONSECUTIVE BILATERAL KERATOCONUS PATIENTS (MEAN AGE 23.3 YEARS, 63% MALE) FROM AN INDIAN TERTIARY EYE CARE CENTER.

Correlation of Back Optic Zone Radius measurement of rigid contact lenses with radiuscope and keratometer.

Purpose: To investigate the accuracy of Back Optic Zone Radius (BOZR, base curve) measurements with manual keratometer for spherical polymethylmethacrylate (PMMA) lenses.

Methods: 100 spherical PMMA contact lenses were selected randomly from the trial sets. One investigator measured the BOZR with radiuscope.