Subjective Comparison of Pre-Lens Tear Film Stability With Daily Disposable Contact Lenses

Subjective Comparison of Pre-Lens Tear Film Stability With Daily Disposable Contact Lenses Using Ring Mire Projection

The purpose of this study was to compare three CE-marked daily disposable contact lenses for tear film stability as measured by pre-lens non-invasive keratograph break up time (PL NIK-BUT). Secondarily, contact lens surface wettability was assessed.

Each participant wore 3 brands of contact lenses in a randomized, cross-over fashion, with a washout phase of at least 1 night between brands.

Inclusion Criteria:

• Sign Informed Consent.
• Adapted soft contact lens wearer.
• Willing to wear contact lenses up to 12 hours and attend all study visits.
• Vision correctable to 0.1 (logMAR) or better in each eye at distance with pre-study lenses at Visit 1.
• Contact lens prescription within the power range specified in the protocol.
• Other protocol-defined inclusion criteria may apply.

Exclusion Criteria:

• Any ocular infection, inflammation, abnormality, or active disease that would contraindicate contact lens wear.
• Any use of systemic or ocular medications that would contraindicate contact lens wear.
• Any ocular finding observed during the Visit 1 examination that would contraindicate contact lens wear.
• Monocular (only 1 eye with functional vision) or fit with only 1 lens.
• History of herpetic keratitis, ocular surgery, or irregular cornea.
• Known pregnancy.
• Unstable tear film with a NIK-BUT value below 13 seconds in either eye without lenses.
• Participation in any clinical study within 30 days of Visit 1.
• Other protocol-defined exclusion criteria may apply.