A Clinical Comparison of Two Daily Disposable Contact Lenses.

Not Applicable

Completed

Brief Summary: The objective of this study is to evaluate the clinical performance of two daily disposable contact lenses.

Recruitment & Eligibility

Inclusion Criteria

Age: 18 years to 45 years
Current daily soft contact lens as habitual optical correction:
Refraction:
- Best sphere (corrected for back vertex distance) -1.00 to -6.00D
- Cylinder 0.00 to - 0.75D
Best spectacle corrected visual acuity of 6/9 or better in each eye
Willingness to adhere to the instructions set in the clinical protocol
Signature of the subject on the informed consent form

Exclusion Criteria

Systemic or ocular allergies which might interfere with contact lens wear
Systemic disease which might interfere with contact lens wear
Ocular disease which might interfere with contact lens wear (e.g. hypoesthesia, insufficient lacrimal secretion)
Use of medication which might interfere with contact lens wear
Active ocular infection
Use of ocular medication
Significant ocular anomaly
Presence of two or more corneal scars in either eye
Pregnancy or lactation
Any medical condition that might be prejudicial to the study
Participated in any other clinical studies in the past month
Currently wears monovision

Arm && Interventions

Group	Intervention	Description
etafilcon A/nelfilcon A	etafilcon A	etafilcon A contact lens worn first and nelfilcon A contact lens worn second
etafilcon A/nelfilcon A	nelfilcon A	etafilcon A contact lens worn first and nelfilcon A contact lens worn second
nelfilcon A/etafilcon A	nelfilcon A	nelfilcon A contact lens worn first and etafilcon A contact lens second.
nelfilcon A/etafilcon A	etafilcon A	nelfilcon A contact lens worn first and etafilcon A contact lens second.

Primary Outcome Measures

Name	Time	Method
Overall Comfort	1 week	Subjects rated study contact lens for overall comfort using the following scale: 5=excellent, 4=very good, 3=good, 2=fair, 1=poor.

Secondary Outcome Measures

Name	Time	Method
Inferior Region Corneal Staining	1 week	The investigator assessed abrasion to the lower portion of the cornea using the following scale:0 = None 1 = Slight micropunctate (1-10 spots) 2 = Moderate micropunctate (11-20 spots) 3 = Severe micropunctate (\>20 spots)4 = Slight macropunctate (1-5 spots) 5 = Moderate macropuntate (\>5-10 spots) 6 = Severe macropunctate (\>10 spots) 7 = Slight patch (1-2mm)8 = Moderate patch (\>2-4mm) 9 = Severe patch (\>4mm)
End of the Day Comfort	1 week	Subjects rated study contact lens comfort at the end of a day of lens wear using the following scale: 5=excellent, 4=very good, 3=good, 2=fair, 1=poor.
Initial Comfort	1 Week	Subjects rated study contact lens for comfort immediately when they first put the lenses on using the following scale: 5=excellent, 4=very good, 3=good, 2=fair, 1=poor.
Overall Lens Handling	1 week	Subjects rated study contact lens for overall ease of handling using the following scale: 5=excellent, 4=very good, 3=good, 2=fair, 1=poor.