The Topographical Effect of Optical Zone Diameter in Orthokeratology Contact Lenses in High Myopes

Figure 2

Horizontal and vertical corneal radius in the different visits with 5 mm and 6 mm optic zone lenses ∗ 5 mm OZ vs. 6 mm OZ ( value < 0.05; Student’s t-test for the related samples).

(a)

(b)