Staining in a Healthy, Non-Dry Eye Population

This study has been completed.
Information provided by:
Alcon Research Identifier:
First received: March 24, 2008
Last updated: May 8, 2015
Last verified: March 2008
The clinical objective of this study is to quantify the levels of corneal and conjunctival staining in a healthy, non-dry eye population. This is a descriptive study without test article administered.

Condition Intervention
Normal Healthy Eyes
Other: No intervention required

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective

Further study details as provided by Alcon Research:

Primary Outcome Measures:
  • Corneal fluorescein staining scores [ Designated as safety issue: No ]

Estimated Enrollment: 120
Study Start Date: June 2007
Primary Completion Date: January 2008 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
1 Other: No intervention required


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Patients with normal healthy eyes

Inclusion Criteria:

  • Healthy eyes

Exclusion Criteria:

  • Age related
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00643942

United States, Texas
San Antonio
San Antonio, Texas, United States, 78229
Sponsors and Collaborators
Alcon Research
  More Information

No publications provided

Responsible Party: Judy Vittitoe, Alcon Identifier: NCT00643942     History of Changes
Other Study ID Numbers: C-06-23
Study First Received: March 24, 2008
Last Updated: May 8, 2015
Health Authority: United States: Food and Drug Administration processed this record on November 30, 2015