Dry Eye
Conditions
Keywords
dry eye, autofluorescence, residence time
Brief summary
The objective of this study is to measure ocular surface residence time (in minutes) of two marketed OTC ophthalmic products in dry eye patients.
Interventions
artificial tears solution for lubricating the cornea
saline solution for irrigating the cornea
Sponsors
Alcon Research
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Informed consent and HIPAA read, signed and dated before conducting any procedures. * Adult volunteers diagnosed with mild to moderate dry eye. Criteria for diagnosis must include 2 of the 3 following characteristics: composite symptom score \> or = to 5 on modified Schein questionnaire; NaFl TFBUT \< or = to 7 seconds in either eye; or NaFl corneal staining sum score \> or = to 3 (using 0-15 point grading system). * Able and willing to follow study instructions. 4) Best-corrected V.A. of 0.6 logMAR or better OU.
Exclusion criteria
* History or evidence of ocular or intraocular surgery in either eye w/i the past 6 months. * History or evidence of serious ocular trauma in either eye w/i the past 6 months. * History of intolerance or hypersensitivity to any component of the study medications. * History or evidence of epithelial herpes simplex keratitis, vaccinia, active or recent varicella viral disease of the cornea and/or conjunctiva and/or eyelids, mycobacterial infection of the eye, and/or fungal disease of the eye. * Use of concomitant topical ocular medications during the study period. * Patients using systemic medications that may contribute to dry eye may not be enrolled unless they have been on a stable dosing regimen for a minimum of 30 days prior to Visit 1, and the dosing regimen must remain stable throughout the study period. * Ocular conditions such as conjunctival infections, iritis, or any other ocular condition that may preclude the safe admininstration of the test article. * Individuals unwilling to d/c contact lens wear during the study period. CL wear must have been d/c at least one week prior to Visit 1. * Participation in an investigational drug or device study w/i 30 days of entering this study. * Additionally, any subject may be declared ineligible for a valid medical reason.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Ocular Surface Residence Time | After 8 minutes, then every 2 minutes | Ocular surface residence time is the time for fluorescent intensity of the cornea to return to baseline measurement after installation of test article. |
Outcome results
None listed