The study intended to observe the changes in the quality of life, behavior, and eye habits of children and adolescents aged 8-18 years before and after orthokeratology, as well as the differences in the quality of life and behaviors of different myopic groups after keratoplasty, using the EQ-5D-Y, CHU9D, and CHROME-G scales with the use of a self-assessment method.

Inclusion Criteria:

• Spherical equivalent ranged -1.00D from-5.00D
• Optimal corrected visual acuity ≥1.0 in both eyes
• No apparent strabismus or other eye disease
• Able to read Chinese and communicate in Mandarin, able to understand the questions in the questionnaire

Exclusion Criteria:

• A history of corneal surgery within 1 year
• Eyelid abnormalities or infection
• An inability to wear orthokeratology
• Use medications that affect the wear of eye and corneal contact lenses
• Those who have participated in a clinical trial of a drug within 90 days
• Allergic patients who have used contact lenses and/or care products
• The researchers consider it inappropriate to participate in this program

Adolescents aged 8-18 years with normal eye health