Table 2: Baseline Visual Correction in Patients in CLEK Cohort Study^*.

Type of Correction	Number of Patients, (%)
Same in Both Eyes
Unaided	43 (3.6)
Glasses	194 (16.1)
Contact lenses	321 (26.6)
Glasses and contacts	571 (47.2)
Different in Each Eye
One eye unaided and fellow-eye contact lenses	37 (3.1)
One eye glasses and contacts with fellow-eye unaided	2 (0.2)
One eye glasses and contacts with fellow-eye contact lenses	1 (0.1)
One eye glasses and contacts with fellow-eye glasses	40 (3.6)

^*CLEK indicates Collaborative Longitudinal Evaluation of Keratoconus