Table 1.

Demographic features of patients.

Feature	Normal N = 25	Suspect N = 41	Mild KC N = 40	Moderate KC N = 71	Severe KC N = 48
Age Mean ± SD	28.7 ± 7.0	25.4 ± 8.3	24.9 ± 9.6	27.2 ± 7.5	28.6 ± 6.7
Sex Male%	56%	58.5%	45%	52.1%	41.6%
Eye Rt/Lt	14/11	19/22	21/19	38/33	26/22

KC: Keratoconus, Rt: Right, Lt: Left.