Evaluation of Orthokeratology Lenses With a 5MM Optic Zone Diameter

Inclusion Criteria: A person is eligible for inclusion in the study if they: 1. Are 6- 35 years of age 2. If under 18 years old they are accompanied by a parent or legal guardian who is able to read, understand and sign the parental information and permission document 3. Have had a self-reported visual exam in the last two years 4. Are able to read (or be read to), understand and sign the assent document if under 18 years old or are able to read, understand and sign the consent document if aged 18 or older 5. Are willing to comply with the wear schedule (approximately 8 hours per night for e…