NCT01433549

Lens Wear Schedules and End-of-Day Comfort

Effect of Recovery Periods on Ocular Comfort During Daily Lens Wear

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 44 (actual)
• Sponsor: CIBA VISION · Industry
• Sex: All
• Age: 17 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study was to assess the impact of lens-free (recovery) intervals of varying lengths on end-of-day comfort and tear film changes with daily contact lens wear.

Detailed description

This study was conducted in a cross-over design with two phases. Each phase consisted of four cycles approximately 12 hours in length. During each cycle, contact lenses were worn for 2-hour intervals, separated by lens-free (recovery) intervals of either 0, 30, 60, or 80 minutes. A new pair of contact lenses was dispensed for each 2-hour interval of lens wear. A 12-hour lens-free wear period preceded each phase.

Conditions

• Myopia

Interventions

Type	Name	Description
DEVICE	Lotrafilcon B	Commercially marketed, silicone hydrogel, single-vision contact lens FDA-approved for daily wear and extended (overnight) wear up to 6 nights.
DEVICE	Senofilcon A	Commercially marketed, silicone hydrogel, single-vision contact lens FDA-approved for daily wear and extended (overnight) wear up to 6 nights.

Timeline

• Start date: 2011-08-01
• Primary completion: 2012-03-01
• Completion: 2012-03-01
• First posted: 2011-09-14
• Last updated: 2013-05-06
• Results posted: 2013-04-30

Locations

1 site across 1 country: Canada