Clinical Comparison of Two Multifocal Contact Lenses Made of Silicone Hydrogel Materials

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Alcon Research ( CIBA VISION )
ClinicalTrials.gov Identifier:
NCT01371539
First received: June 9, 2011
Last updated: June 28, 2012
Last verified: June 2012
  Purpose

The purpose of this study was to compare visual performance measures between two multifocal contact lenses on presbyopic wearers.


Condition Intervention
Myopia
Presbyopia
Device: Lotrafilcon B contact lens
Device: Comfilcon A contact lens

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Single Blind (Subject)
Primary Purpose: Treatment
Official Title: Clinical Comparison of Two Multifocal Contact Lenses Made of Silicone Hydrogel Materials

Resource links provided by NLM:


Further study details as provided by Alcon Research:

Primary Outcome Measures:
  • Corrected Distance Binocular Visual Measurement in Normal Illumination Reported as Binocular Distance Visual Acuity [ Time Frame: 1 week ] [ Designated as safety issue: No ]
    The participant read a Snellen chart at a 20-foot equivalent distance with both eyes together while wearing study lenses. The Snellen acuity was converted into logMAR units (logarithm of the minimum angle of resolution). A 20/20 Snellen acuity equated to a logMAR acuity of 0.0 and was considered normal distance eyesight. A positive logMAR value indicated poorer vision, and a negative value denoted better visual acuity.

  • Corrected Near Binocular Visual Measurement in Normal Illumination Reported as Binocular Near Visual Acuity [ Time Frame: 1 week ] [ Designated as safety issue: No ]
    The participant read a Snellen chart at 40 centimeters with both eyes together while wearing study lenses. The Snellen acuity was converted into logMAR units (logarithm of the minimum angle of resolution). A 20/20 Snellen acuity equated to a logMAR acuity of 0.0 and was considered normal near eyesight. A positive logMAR value indicated poorer vision, and a negative value denoted better visual acuity.


Enrollment: 109
Study Start Date: June 2011
Study Completion Date: August 2011
Primary Completion Date: August 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Lotrafilcon B / Comfilcon A
Lotrafilcon B contact lenses worn first, with comfilcon A contact lenses worn second. Both products worn bilaterally on a daily wear basis for one week each.
Device: Lotrafilcon B contact lens
Commercially marketed, silicone hydrogel, multifocal contact lens for daily wear use.
Other Name: AIR OPTIX AQUA MULTIFOCAL
Device: Comfilcon A contact lens
Commercially marketed (France), silicone hydrogel, multifocal contact lens for daily wear use.
Other Name: Biofinity Multifocal
Comfilcon A / Lotrafilcon B
Comfilcon A contact lenses worn first, with lotrafilcon B contact lenses worn second. Both products worn bilaterally on a daily wear basis for one week each.
Device: Lotrafilcon B contact lens
Commercially marketed, silicone hydrogel, multifocal contact lens for daily wear use.
Other Name: AIR OPTIX AQUA MULTIFOCAL
Device: Comfilcon A contact lens
Commercially marketed (France), silicone hydrogel, multifocal contact lens for daily wear use.
Other Name: Biofinity Multifocal

  Eligibility

Ages Eligible for Study:   35 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • At least 35 years of age.
  • Spectacle add of +0.50 to +2.50 diopters (inclusive).
  • Currently wearing soft contact lenses at least 5 days per week and at least 8 hours per day.
  • Able to be fit in both eyes with soft multifocal lenses in available powers.
  • Other protocol-defined inclusion criteria may apply.

Exclusion Criteria:

  • Eye injury or surgery within 12 weeks of enrollment in trial.
  • Currently enrolled in any clinical trial.
  • Astigmatism of 1.00 diopter or more.
  • Currently wearing excluded brands of multifocal lenses, as specified by protocol.
  • Other protocol-defined exclusion criteria may apply.
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01371539

Sponsors and Collaborators
CIBA VISION
Investigators
Study Director: Stacie Cummings, O.D. Alcon Research
  More Information

No publications provided

Responsible Party: Alcon Research ( CIBA VISION )
ClinicalTrials.gov Identifier: NCT01371539     History of Changes
Other Study ID Numbers: P-319-C-021
Study First Received: June 9, 2011
Results First Received: June 28, 2012
Last Updated: June 28, 2012
Health Authority: United States: Institutional Review Board

Keywords provided by Alcon Research:
Myopia
Presbyopia

Additional relevant MeSH terms:
Myopia
Presbyopia
Refractive Errors
Eye Diseases

ClinicalTrials.gov processed this record on April 15, 2014