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Table 1 Inclusion and exclusion criteria

From: Effects of orthokeratology on the progression of low to moderate myopia in Chinese children

Inclusion criteria

Exclusion criteria

• 7.0 to 11.5 years old

• SE: >−0.50D and < −6.00D in both eyes

• With-the-rule astigmatism (axes 180 ± 30) < 1.50D

• BCVA:(logMAR) of 0.10 or better in both eyes

• Had an IOP of <21 mmHg

• Maintained regularly scheduled visits and completed the 1-year follow-up

• Discontinued lens wear for a total of 30 days or less during the 1 year (criterion only for ortho-k group)

• Previous experience withcontact lens wear or other treatment for myopia control

• Strabismus at distance or near ornystagmus

• Contraindication for ortho-k lens(e.g., limbus-to-limbus corneal cylinder and dislocated corneal apex)

• Previous history of ocular surgery, trauma, or chronic ocular disease

• Concurrent use of medications that may affect tear quality

• Systemic or ocular conditions that may affect tear quality or contact lens wear (e.g., allergy and concurrent medication) or that may affect refractive development (e.g., Down syndrome, ptosis)