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The Physiological Consequence of Silicone-hydrogel Care-solution Bio-incompatibility

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ClinicalTrials.gov Identifier: NCT00829751
Recruitment Status : Completed
First Posted : January 27, 2009
Last Update Posted : June 4, 2013
Sponsor:
Collaborator:
Alcon Research
Information provided by (Responsible Party):
Jerry R. Paugh, OD, PhD, Southern California College of Optometry

Brief Summary:
The purpose of this study is to more objectively evaluate potential lens-material/care solution bio-incompatibilities. We will do this by measuring corneal staining and the amount of fluorescein dye diffusion into the eye.

Condition or disease Intervention/treatment
Contact Lens Solution Toxicity Device: PureVision lenses soaked in ReNu Multiplus Device: PureVision lenses soaked in OptiFree RePlenish

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 26 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Basic Science
Official Title: The Physiological Consequence of Silicone-hydrogel Care-solution Bio-incompatibility
Study Start Date : November 2008
Primary Completion Date : June 2011
Study Completion Date : June 2011

Arm Intervention/treatment
Active Comparator: ReNu Multiplus
Purevision lenses will be soaked in ReNu Multiplus
Device: PureVision lenses soaked in ReNu Multiplus
Purevision silicone hydrogel lenses
Active Comparator: OptiFree RePlenish
PureVision lenses will be soaked in OptiFree RePlenish
Device: PureVision lenses soaked in OptiFree RePlenish
Purevision silicone hydrogel lenses soaked in OptiFree RePlenish



Primary Outcome Measures :
  1. The level/amount of sodium fluorescein dye in the anterior chamber at post wear timepoints [ Time Frame: On day of experiment ]

Secondary Outcome Measures :
  1. Corneal staining level post lens wear [ Time Frame: On day of study ]


Information from the National Library of Medicine

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

Inclusion Criteria:

  • At least 18 years of age.
  • Best correctable vision to 20/40 in each eye.
  • Possess a functional spectacle prescription to allow adequate vision during the de-adaptation and fluorometry measurement period.
  • No known ocular or systemic allergies, which may interfere with contact lens wear.
  • No known systemic disease, or need for medication that may interfere with contact les wear (i.e. antihistamines, beta-blockers, steroids, ect.).

Exclusion Criteria:

  • Subjects demonstrating any medical condition that may affect the results of this study SHOULD NOT be enrolled. The following are specific conditions that exclude subjects from enrollment in this study.
  • Eye (ocular) or systemic allergies that may interfere with contact lens wear.
  • Clinically significant corneal swelling (greater than 3 or 4 on a 0-4 scale), corneal blood vessel growth (vascularization), corneal staining, bulbar redness, tarsal redness, or any other abnormality of the cornea that may cause unsafe contact lens wear.
  • Are taking part in any other study or have taken part in a study within the last 14 days.
  • Are pregnant, or anticipating to become pregnant during the course of the study.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00829751


Locations
United States, California
Southern California College of Optometry
Fullerton, California, United States, 92831
Sponsors and Collaborators
Southern California College of Optometry
Alcon Research
Investigators
Principal Investigator: Jerry R Paugh, OD, PhD Southern California College of Optometry

Responsible Party: Jerry R. Paugh, OD, PhD, Professor, Associate Dean for Research, Southern California College of Optometry
ClinicalTrials.gov Identifier: NCT00829751     History of Changes
Other Study ID Numbers: 08-8
First Posted: January 27, 2009    Key Record Dates
Last Update Posted: June 4, 2013
Last Verified: May 2013

Keywords provided by Jerry R. Paugh, OD, PhD, Southern California College of Optometry:
staining
toxicity
fluorometry
dye diffusion
anterior chamber