From: Effect of short-term orthokeratology lens or ordinary frame glasses wear on corneal thickness, corneal endothelial cells and vision correction in adolescents with low to moderate myopia
Group
0
I
II
III
IV
Control group (n = 47)
40 (85.11)
4 (8.51)
1 (2.13)
Experimental group (n = 53)
44 (83.02)
5 (9.43)
3 (5.66)
1 (1.89)
0 (0.00)