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Time Course Comparison of Contact Lens Maintenance Systems for Hydrogel Lenses

This study has been completed.
Clinical Vision Research Australia
Alcon Research
Information provided by:
University of Melbourne Identifier:
First received: August 8, 2008
Last updated: June 30, 2009
Last verified: June 2009
The principal aim of this project is to determine the time course of development of contact lens and contact lens case contamination during daily wear of silicone hydrogel lenses. The secondary aim of the study is to determine whether the time course of development of contact lens and contact lens case contamination varies between two different contact lens care systems.

Condition Intervention
Device: Silicone Hydrogel Contact Lenses
Device: 1x PMBH preserved MPS
Device: 1x Polyquad/Aldox MPS

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Investigator)
Primary Purpose: Basic Science

Resource links provided by NLM:

Further study details as provided by University of Melbourne:

Estimated Enrollment: 132
Study Start Date: August 2008
Study Completion Date: April 2009
Primary Completion Date: February 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
Group 1
Device: Silicone Hydrogel Contact Lenses
Experimental: 2
Group 2
Device: 1x PMBH preserved MPS
Experimental: 3
Group 3
Device: 1x Polyquad/Aldox MPS


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Distance contact lens prescription between +8.00 and -10.00D.
  • Cylindrical component of refractive error no greater than 1.25D in either eye.
  • Vision correctable to 6/12 (0.30 logMAR) or better in each eye.
  • Healthy normal eyes without anterior segment infection, inflammation or abnormality, or significant slitlamp findings.

Exclusion Criteria:

  • Concurrent ocular medication
  • Eye injury or surgery within twelve weeks immediately prior to enrolment.
  • Current ocular irritation that would preclude contact lens fitting.
  • Evidence of systemic or ocular abnormality, infection or disease likely to affect successful wear of contact lenses or use of their accessory solutions.
  • Pregnant, lactating or planning a pregnancy.
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Please refer to this study by its identifier: NCT00732004

Australia, Victoria
Clinical Vision Research Australia
Melbourne, Victoria, Australia, 3053
Sponsors and Collaborators
University of Melbourne
Clinical Vision Research Australia
Alcon Research
  More Information

Responsible Party: Carol Lakkis, Clinical Vision Research Australia Identifier: NCT00732004     History of Changes
Other Study ID Numbers: H08 002
Study First Received: August 8, 2008
Last Updated: June 30, 2009

Additional relevant MeSH terms:
Refractive Errors
Eye Diseases processed this record on May 25, 2017