Fig. 2

Flow diagram of study progress in the 5.0Â mm-BOZD OK, 6.2Â mm-BOZD OK, DISC and SCL groups. BOZD, back optic zone diameter; OK, orthokeratology; DISC, defocus incorporated soft contact; SCL, soft contact lens
Flow diagram of study progress in the 5.0Â mm-BOZD OK, 6.2Â mm-BOZD OK, DISC and SCL groups. BOZD, back optic zone diameter; OK, orthokeratology; DISC, defocus incorporated soft contact; SCL, soft contact lens