From: Tear proteomic profile in three distinct ocular surface diseases: keratoconus, pterygium, and dry eye related to graft-versus-host disease
Group
n
Age (years, mean)
Sex (female:male ratio)
Keratoconus
4
30.5
2:2
Pterygium
9
47.2
3:6
GVHD
10
49.6
7:3
Control
6
47.5
5:1