Effect of Orthokeratology on Myopia Progression in French Children

Effect of Orthokeratology on Myopia Progression in French Children

To evaluate and to compare the effect of orthokeratology (OK) on axial elongation in French myopic children.

Inclusion Criteria:

• 7 to 17 years old
• Myopia between 0,50 D and 7.00 D
• Astigmatism ≤ 4.00 D with-the-rule 180+-20
• Anisometropia ≤ 1.50 D
• Myopia evolution ≥ 0.25 D over 6 months
• Best-corrected visual acuity (BCVA) ≥ 20/20 (Snellen equivalent)
• Follow-up period > 6 months

Exclusion Criteria:

• Prior history of any other myopia control treatment (except for single vision distance spectacles)
• Contraindication for contact lens wear or orthokeratology
• Preexisting ocular (amblyopia, strabismus, ocular inflammation, trauma, or surgery) or systemic disease
• Poor compliance to lens wear, examination or follow-up