Evaluation of the CooperVision, Inc. Fanfilcon A and Enfilcon A Daily Wear Contact Lenses When Used for Frequent Replacement for up to One (1) Month of Daily Wear

Wearing lenses in a monovision modality and is unwilling to be fit with distance lenses in both eyes for the duration of the study. Note: Subjects may not wear lenses in a monovision modality at any time during the study as it will interfere with the visual acuity analysis.

Poor personal hygiene.

Any active participation in another clinical trial during this trial or within 30 days prior to this study.

To the best of the subject's knowledge, she is currently pregnant, is lactating or is planning a pregnancy within the next 3 months.

A member, relative or household member of the investigator or of the investigational office staff.

Has a known sensitivity to the ingredients used in the Multi-Purpose Disinfection Lens Care System (MPS) approved for use in the study and is unable or unwilling to use the alternate care system.

Previous refractive surgery; or current or previous orthokeratology treatment.

Is aphakic or pseudophakic.

Ocular or systemic disease such as, but not limited to: anterior uveitis or iritis (past or present), glaucoma, Sjögren's syndrome, lupus erythematosus, scleroderma, keratoconus or uncontrolled diabetes.

The need for topical ocular medications or any systemic medication which might interfere with contact lens wear or require the lenses to be removed during the day.

The presence of clinically significant (grade 2, 3 or 4) anterior segment abnormalities; or the presence of any inflammations such as iritis; or any infection of the eye, lids, or associated structures.

A known history of corneal hypoesthesia (reduced corneal sensitivity), corneal ulcer, corneal infiltrates, iritis, bacterial or fungal infections.

A history of papillary conjunctivitis that has interfered with contact lens wear.

Slit lamp findings that would contraindicate contact lens wear, including but not limited to:

* Pathological dry eye or associated dry eye symptoms with decreased tear levels and punctuate staining \> Grade 2

* Pterygium

* Corneal scars within the visual axis

* Neovascularization or ghost vessels \> 1.0 mm in from the limbus

* Giant papillary conjunctivitis (GPC) of \> Grade 2

* Anterior uveitis or iritis

* Seborrheic eczema, seborrheic conjunctivitis or blepharitis

What this study is about