Comparison of a Multifocal Contact Lens to a Traditional Multifocal Contact Lens

Not Applicable

Completed

• Conditions: Presbyopia
• Interventions: Device: Lotrafilcon B multifocal contact lens; Device: Omafilcon A multifocal contact lens

• Registration Number: NCT00886119
• Lead Sponsor: CIBA VISION

Brief Summary

The purpose of the trial is to compare the performance of two multifocal contact lens systems/products in established presbyopic subjects.

Detailed Description

Not available

Study Timeline

• Study Start: 2009-04
• Study First Submitted: 2009-04-10
• Study First Submitted QC: 2009-04-21
• Study First Posted: 2009-04-22
• Primary Completion: 2009-05
• Study Completion: 2009-05
• Results First Submitted: 2010-09-14
• Results First Submitted QC: 2010-10-06
• Results First Posted: 2010-10-29
• Status Verified: 2012-01
• Last Update Submitted: 2012-06-26
• Last Update Posted: 2012-06-29

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 48

Inclusion Criteria

• Be at least 35 years of age.
• Best-corrected visual acuity of at least 20/40 in each eye.
• Spectacle add from +1.50D and +2.50D (inclusive).
• Able to be fit in available study sphere powers (Plano to -4.00D).
• Currently wearing soft contact lenses at least 5 days a week.
• Other protocol inclusion / exclusion criteria may apply.

Exclusion Criteria

• Requires concurrent ocular medication.
• Eye injury or surgery within twelve weeks immediately prior to enrollment.
• Currently enrolled in an ophthalmic clinical trial.
• Evidence of systemic or ocular abnormality, infection or disease likely to affect successful wear of contact lenses or use of their accessory solutions.
• Previous refractive surgery.
• Astigmatism > 1.00D.
• Currently wearing Proclear Multifocal, Frequency 55 Multifocal or Biomedics EP contact lenses.
• Other protocol inclusion / exclusion criteria may apply.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Omafilcon A / Lotrafilcon B	Omafilcon A multifocal contact lens	Omafilcon A, followed by Lotrafilcon B
Lotrafilcon B / Omafilcon A	Lotrafilcon B multifocal contact lens	Lotrafilcon B, followed by Omafilcon A
Lotrafilcon B / Omafilcon A	Omafilcon A multifocal contact lens	Lotrafilcon B, followed by Omafilcon A
Omafilcon A / Lotrafilcon B	Lotrafilcon B multifocal contact lens	Omafilcon A, followed by Lotrafilcon B

Primary Outcome Measures

Name	Time	Method
Corrected Distance Binocular Visual Measurement in Normal Illumination Reported as Binocular Distance Visual Acuity	After 1 week of wear	Tested while reading charts distant to the subject with both eyes together in normal lighting. This outcome is measured in logMAR units (logarithm of the minimum angle of resolution). A logMAR acuity of 0.0 equates to 20/20 Snellen acuity and is considered normal. Positive logMAR values indicate poorer vision and negative values denote better visual acuity.