Clinical Comparison of Two Soft Contact Lenses

The purpose of this participant-masked, non-randomized, crossover controlled, non-dispensing, study was to compare the short-term performance of 2 daily disposable contact lenses after 15 minutes of daily wear each. The lenses were identical in all aspects except for diameter. Participants attended for 1 visit only which lasted for approximately 2 hours.

Inclusion criteria

• Subjects will only be eligible for the study if:

• They were of legal age (18) and capacity to volunteer.
• They understood their rights as a research subject and were willing and able to sign a Statement of Informed Consent.
• They were willing and able to follow the protocol.
• They were wearing soft contact lenses, or had done so within the past two years.
• They were able to be fitted with the study lenses within the power range available.

Exclusion criteria

• Subjects will not be eligible if:

• They had an ocular disorder which would normally contra-indicate contact lens wear.
• They had a systemic disorder which would normally contra-indicate contact lens wear.
• They were using any topical medication such as eye drops or ointment.
• They were aphakic.
• They had had corneal refractive surgery.
• They had any corneal distortion resulting from previous hard or rigid lens wear or had keratoconus.
• They were pregnant or lactating.
• They had an eye or health condition including an immunosuppressive or infectious disease which could, in the opinion of the investigator, contraindicate contact lens wear or pose a risk to study personnel; or a history of anaphylaxis or severe allergic reaction.
• They had taken part in any contact lens or care system clinical research within two weeks prior to starting this study.