Evaluation of Prototype Lenses With Experimental UV/HEV Blocker

This is a bilateral, 2-week dispensing, randomized, controlled, subject-masked, 2×2 crossover study to evaluate the clinical performance of prototype contact lenses with experimental UV/HEV-blocker.


Eligibility Criteria:
Inclusion Criteria:

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

  1. Read, understand, and sign the STATEMENT OF INFORMED CONSENT and receive a fully executed copy of the form.
  2. Appear able and willing to adhere to the instructions set forth in this clinical protocol.
  3. Be between 18 and 39 (inclusive) years of age at the time of screening.
  4. By self-report, habitually wear spherical silicone hydrogel soft contact lenses in both eyes in a daily reusable or daily disposable wear modality (i.e. not extended wear modality). Habitual wear is defined as a minimum of 6 hours of wear per day, for a minimum of 5 days per week during the past 30 days.
  5. Have a habitual contact lens prescription that is current within the prior 6 months, and they must have worn that prescription for at least 2 weeks prior to entering the study.
  6. The subject's vertex corrected spherical equivalent distance refraction must be in the range of -1.00 through -6.00 D (except -5.00 D) in both eyes.
  7. The subject's refractive cylinder must be 1.00 D or less.
  8. The subject must have best corrected visual acuity of 20/25 or better in each eye.

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

  1. Be currently pregnant or lactating.
  2. Have any ocular or systemic allergies or diseases that may interfere with contact lens wear.
  3. Have any autoimmune disease or use of medication, which may interfere with contact lens wear. Habitual medications used by successful soft contact lens wearers are considered acceptable.
  4. Have any previous, or planned, ocular or interocular surgery (e.g., radial keratotomy, PRK, LASIK, etc.).
  5. Be currently wearing lenses in a monovision, multi-focal, toric, or extended wear modality.
  6. Have participated in a contact lens or lens care product clinical trial within 14 days prior to study enrollment.
  7. Be an employee (e.g., Investigator, Coordinator, Technician) or immediate family member of an employee (including partner, child, parent, grandparent, grandchild or sibling of the employee or their spouse) of the clinical site.
  8. Have a history of binocular vision abnormality or strabismus.
  9. Have any infectious disease (e.g., hepatitis, tuberculosis) or contagious immunosuppressive diseases (e.g., HIV) by self-report.
  10. Have any Grade 3 or greater slit lamp findings (e.g., edema, corneal neovascularization, corneal staining, tarsal abnormalities, conjunctival injection) on the FDA classification scale, any previous history or signs of a contact lens-related corneal inflammatory event (e.g., past peripheral ulcer or round peripheral scar), or any other ocular abnormality that may contraindicate contact lens wear.
  11. Have any ocular infection.
  12. Have any corneal distortion resulting from previous hard or rigid gas permeable contact lens wear.
  13. Have entropion, ectropion, extrusions, chalazia, recurrent styes, glaucoma, history of recurrent corneal erosions, or aphakia.