Refractive Error Clinical Trial
Verified date | April 2014 |
Source | Alcon Research |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Institutional Review Board |
Study type | Interventional |
The purpose of this study was to evaluate the subjective and objective performance and the physiological response to AIR OPTIX® COLORS soft contact lenses compared with AIR OPTIX® AQUA contact lenses in participants with normal eyes and prescription needs.
Status | Completed |
Enrollment | 150 |
Est. completion date | January 2012 |
Est. primary completion date | January 2012 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | N/A and older |
Eligibility |
Inclusion Criteria: - Be of legal age of consent and sign Informed Consent document. If under legal age of consent, legally authorized representative must sign Informed Consent document and subject must sign Assent document. - Normal eyes and not using any ocular medications. - Willing to wear visitint or gray-colored spherical contact lenses in both eyes within available power ranges. - Manifest cylinder less than or equal to 0.75 diopter. - Best spectacle corrected visual acuity greater than or equal to 20/25. - Have current prescription glasses. - Other protocol-defined inclusion criteria may apply. Exclusion Criteria: - Anterior segment infection, inflammation, or abnormality. - Any active anterior segment ocular or systemic disease that would contraindicate contact lens wear. - Use of ocular or systemic medications for which contact lens wear could be contraindicated as determined by the investigator. - History of refractive surgery or irregular cornea. - History of pathologically dry eye. - Corneal vascularization greater than 1 millimeter of penetration. - History of herpetic keratitis. - Eye injury within 12 weeks immediately prior to enrollment in this trial. - Currently enrolled in any clinical trial or participation in any clinical trial within the previous 30 days. - Other protocol-defined exclusion criteria may apply. |
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Open Label
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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CIBA VISION |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Contact Lens-Corrected Distance Monocular Snellen Visual Acuity (VA) (20/30 or Better) | Visual acuity, as assessed for each eye individually. Participant read a distance Snellen chart while wearing study lenses. The percentage of eyes with VA recorded as 20/30 or better is reported. Both eyes contributed to the percentage. | Up to Month 3 | No |
Secondary | Subjective Rating of Overall Vision | Overall vision, as rated by the participant on a 10-point scale, with 1 being poor and 10 being excellent. The participant rated both eyes together by providing one single rating. | Up to Month 3 | No |
Secondary | Subjective Rating of Overall Comfort | Overall comfort, as rated by the participant on a 10-point scale, with 1 being poor and 10 being excellent. The participant rated both eyes together by providing one single rating. | Up to Month 3 | No |
Secondary | Subjective Rating of Overall Handling | Overall handling, as rated by the participant on a 10-point scale, with 1 being difficult and 10 being easy. The participant rated both eyes together by providing one single rating. | Up to Month 3 | No |
Secondary | Lens Fit (Optimal, Acceptably Loose, Acceptably Tight) | Lens fit, as assessed by the investigator for each eye individually. Lens fit was rated on a 5-point scale: 2=unacceptably loose, 1=acceptably loose, 0=optimal, -1=acceptably tight, -2=unacceptably tight. The combined percentage of lenses assessed as "optimal," "acceptably loose," or "acceptably tight" is reported. Lenses from both eyes contributed to the percentage. | Up to Month 3 | No |
Secondary | Lens Centration (Centered, Slight Decentration) | Lens centration, as assessed by the investigator for each eye individually. Lens centration was rated on a 5-point scale: 0=centered, 1=slight decentration, 2=mild decentration, 3=moderate decentration, 4=severe decentration. The combined percentage of lenses assessed as "centered" or "slight decentration" is reported. Lenses from both eyes contributed to the percentage. | Up to Month 3 | No |
Secondary | Dry Areas/Non-Wetting (None, Very Slight) | Dry areas/non-wetting (i.e., assessment of the disruption of the front surface wettability of the contact lens), as assessed by the investigator for each eye individually. Dry areas/non-wetting was rated on a 5-point scale: 0=none, 1=very slight, 2=slight, 3=moderate, 4=severe. The combined percentage of lenses assessed as "none" or "very slight" is reported. Lenses from both eyes contributed to the percentage. | Up to Month 3 | No |
Secondary | Front Surface Deposits (None, Very Slight) | Front surface deposits on the contact lens, as assessed by the investigator for each eye individually. Front surface deposits were rated on a 5-point scale: 0=none, 1=very slight, 2=slight, 3=moderate, 4=severe. The combined percentage of lenses assessed as "none" or "very slight" is reported. Lenses from both eyes contributed to the percentage. | Up to Month 3 | No |
Secondary | Back Surface Deposits (None, Very Slight) | Back surface deposits on the contact lens, as assessed by the investigator for each eye individually. Back surface deposits were rated on a 5-point scale: 0=none, 1=very slight, 2=slight, 3=moderate, 4=severe. The combined percentage of lenses assessed as "none" or "very slight" is reported. Lenses from both eyes contributed to the percentage. | Up to Month 3 | No |
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