This is a two-arm parallel, non-masked, bilateral, non-dispensing study with one Test arm and one concurrent, non-randomized Control arm to evaluate the one-eye optical performances of the test soft contact lens and compare with eyes treated with orthokeratology.

Inclusion Criteria:

• Potential subjects must satisfy all of the following criteria to be enrolled in the study:

  1. Pediatric subjects (<18 years old) must read (or be read to), understand, and sign the Statement of Information and Assent and receive a fully executed copy of the form.

  2. Adult subjects (≥18 years old) and parent(s) or legal guardian(s) of pediatric subjects must read, understand and sign the Statement of Informed Consent and receive a fully executed copy of the form.

  3. Appear able and willing to adhere to the instructions set forth in this clinical protocol.

  4. Between 7 and 25 years of age (inclusive).

  5. Have normal eyes (i.e., no ocular medications or infections of any type).

  6. Vertex-corrected distance subjective best-sphere refraction must be between -1.00D and -5.00D (inclusive) in each eye.

  7. Cylindrical refraction must be 1.00D or less in each eye, by subjective sphero-cylindrical refraction.

  8. Have sphero-cylindrical best-corrected visual acuity of 20/25 or better in each eye.

     Below inclusion criterion is for subjects to be enrolled to the Control group only:

  9. Are existing orthokeratology patients whose current treatment has been stabilized for at least 1 months and with complete pre-treatment record, e.g., spherocylindrical refraction and corneal topography. Pre-treatment wavefront aberration measures are preferred by not required.

     Exclusion Criteria:

• Potential subjects who meet any of the following criteria will be excluded from participating in the study:

  1. Currently pregnant or lactating.
  2. Any systemic allergies, infectious disease (e.g., hepatitis, tuberculosis), autoimmune disease (e.g., rheumatoid arthritis), or other diseases, by self-report, which are known to interfere with contact lens wear and/or participation in the study.
  3. Use of systemic medications (e.g., chronic steroid use) that are known to interfere with contact lens wear and/or participation in the study.
  4. Any current use of ocular topical medication (occasional use of re-wetting drops is allowed).
  5. Any previous or planned ocular or intraocular surgery, including refractive surgery.
  6. Participation in any contact lens or lens care product clinical trial within 7 days prior to study enrollment.
  7. Employee or their children/relatives of investigational clinic (e.g., Investigator, Coordinator, Technician). 8 . Any ocular allergies, infections or other ocular abnormalities that are known to interfere with contact lens wear and/or participation in the study. This may include, but not be limited to, aphakia, uveitis, ocular hypertension, glaucoma, severe keratoconjunctivitis sicca, history of recurrent corneal erosions, keratoconus, keratoconus suspect, pellucid marginal degeneration, entropion, ectropion, extrusions, chalazia, and recurrent styes.

  9 . Any Grade 3 or greater slit lamp findings (eg, edema, corneal neovascularization, corneal staining, tarsal abnormalities, and conjunctival injection) on the FDA scale.

  10 . Any ocular abnormality that is contraindicated contact lens wear. 11 . Any corneal scar within central 5mm 12 . Binocular vision abnormality, intermittent strabismus or strabismus. Below exclusion criteria are for subjects to be enrolled to the Test group only 13 . Current or recent (within 30 days from enrollment) rigid lens wearers. 14 . History of orthokeratology treatment. 15. Any corneal distortion resulting from ocular diseases or previous hard or rigid gas permeable contact lens wear.

All subjects dispensed a study lens

Throughout the duration of the study; approximately 2 days up to 10 days.