Clinical Performance of Hydrogel vs. Silicone Hydrogel Contact Lenses

* Is between 18 and 40 years of age (inclusive)

* Has had a self-reported visual exam in the last two years

* Is an adapted soft CL (Contact Lens) wearer

* Has a CL spherical prescription between - 1.00 and - 10.00 (inclusive)

* Has a spectacle cylinder up to 0.75D (Diopter) in each eye.

* Can achieve best corrected spectacle distance visual acuity of 20/25 (0.10 logMAR) or better in each eye.

* Can achieve a distance visual acuity of 20/30 (0.18 logMAR) or better in each eye with the study contact lenses.

* Has clear corneas and no active ocular disease

* Has read, understood and signed the information consent letter

* Patient contact lens refraction should fit within the available parameters of the study lenses

* Is willing to comply with the wear schedule

* Is willing to comply with the visit schedule

* Has never worn contact lenses before.

* Currently wears rigid gas permeable contact lenses.

* Has a history of not achieving comfortable CL wear (5 days per week; > 8 hours/day)

* Has a CL prescription outside the range of - 1.00 to -10.00D

* Has a spectacle cylinder ≥1.00D of cylinder in either eye.

* Has contact lens best corrected distance vision worse than 20/25 (0.10 logMAR) in either eye.

* Presence of clinically significant (grade 2-4) anterior segment abnormalities.

* Presence of ocular or systemic disease or need of medications which might interfere with contact lens wear.

* Slit lamp findings that would contraindicate contact lens wear such as:

* Has a known history of corneal hypoesthesia (reduced corneal sensitivity)

* Has aphakia, keratoconus or a highly irregular cornea.

* Has Presbyopia or has dependence on spectacles for near work over the contact lenses.

* Has undergone corneal refractive surgery.

* Is participating in any other type of eye related clinical or research study.