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IOP Lowering Effects of Topical Anesthetics Used Frequently in the Ophthalmology Clinic

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01254149
Recruitment Status : Completed
First Posted : December 6, 2010
Last Update Posted : June 14, 2012
Information provided by (Responsible Party):
University of Nebraska

Brief Summary:
The primary purpose of this study is to determine whether topical ophthalmic anesthetics lower the intraocular pressure in the eye.

Condition or disease
Normal Tension Glaucoma

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Study Type : Observational
Actual Enrollment : 43 participants
Time Perspective: Cross-Sectional
Official Title: Intraocular Pressure Lowering Effects of Topical Anesthetics Used Frequently in the Ophthalmology Clinic
Study Start Date : January 2011
Actual Primary Completion Date : April 2012
Actual Study Completion Date : April 2012

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Measured pressures in subjects' eyes with and without anesthetics. [ Time Frame: 30 minutes ]

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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Ages Eligible for Study:   19 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Subjects 19 years of age and older with normal eyes and with ocular disease.

Inclusion Criteria:

  • Subjects must be 19 years of age and older

Exclusion Criteria:

  • Corneal diseases including corneal transplants, corneal dystrophies, or trauma to the cornea that may prevent reliable tonometry of either eye.
  • Intolerant to topical Proparacaine and Benoxinate
  • Pregnant or nursing
  • 18 years of age and younger.
  • Physical limitation preventing ability to obtain reliable intraocular measurements (e.g. difficulty positioning subjects in front of the slit lamp or inability to keep eyes open during the intraocular pressure checks).

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 identifier (NCT number): NCT01254149

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United States, Nebraska
University of Nebraska Medical Center, Department of Ophthalmology
Omaha, Nebraska, United States, 68198
Sponsors and Collaborators
University of Nebraska
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Principal Investigator: Nathan Welch, MD UNMC Department of Ophthalmology and Visual Sciences
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Responsible Party: University of Nebraska Identifier: NCT01254149    
Other Study ID Numbers: 577-10-FB
First Posted: December 6, 2010    Key Record Dates
Last Update Posted: June 14, 2012
Last Verified: June 2012
Additional relevant MeSH terms:
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Low Tension Glaucoma
Ocular Hypertension
Eye Diseases
Optic Nerve Diseases