A Comparison of Two Daily Disposable Contact Lenses

The Comparative Clinical Performance of the Etafilcon A Lens and the DAILIES AquaComfort Plus Lens

This study seeks to evaluate the clinical performance of a recently improved daily disposable contact lens to an established daily disposable contact lens that contains a wetting agent.

Inclusion Criteria:

1. They are of legal age (18 years) and capacity to volunteer.
2. They understand their rights as a research subject and are willing to sign a Statement of Informed Consent.
3. They are willing and able to follow the protocol.
4. They would be expected to attain at least 6/9 (20/30) in each eye with the study lenses.
5. They are able to wear contact lenses with a back vertex power of -1.00 to -6.00DS.
6. They have a maximum of 1.00D of refractive astigmatism (i.e. ≤ 1.00 DC).
7. They have successfully worn contact lenses within six months of starting the study. -

Exclusion Criteria:

1. They have an ocular disorder which would normally contra-indicate contact lens wear.
2. They have a systemic disorder which would normally contra-indicate contact lens wear.
3. They are using any topical medication such as eye drops or ointment.
4. They are aphakic.
5. They have had corneal refractive surgery.
6. They have any corneal distortion resulting from previous hard or rigid lens wear or has keratoconus.
7. They are pregnant or lactating.
8. They have grade 2 or greater of any of the following ocular surface signs: corneal oedema, corneal vascularisation, corneal staining, tarsal conjunctival changes or any other abnormality which would normally contraindicate contact lens wear.
9. They have any infectious disease (e.g. hepatitis) or any immunosuppressive disease (e.g. HIV).
10. They have diabetes.
11. They have taken part in any other clinical trial or research, within two weeks prior to starting this study.