Expired Study
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Columbus, Ohio 43212


Purpose:

The research will utilize LASIK and non-LASIK populations to analyze the biomechanical differences between these corneas.


Study summary:

The research will utilize LASIK and non-LASIK populations to analyze the biomechanical differences between these corneas. Subjects' corneas will be swelled with warmed, humidified nitrogen using modified diving goggles to assess structural changes due to a two hour swelling period. Subjects will be examined prior to swelling by a registered ophthalmologist to ensure that the cornea is healthy enough to undergo the swelling procedure. Pre-swelling and post-swelling data will be compared for parameters such as elasticity, density, thickness, axial and tangential curvature, hydration, and intraocular pressure in the central, paracentral, and peripheral regions. Analysis of pre-swelling and post-swelling data will allow for a better understanding of the structural changes created by LASIK. In addition, this project will allow for a better understanding of how common fluctuations in hydration levels affect normal corneal parameters as given by common devices in both populations to allow for corrections for more accurate measurements.


Criteria:

Inclusion Criteria: - Healthy cornea without LASIK surgery as determined by a registered ophthalmologist. - Healthy cornea with LASIK surgery as determined by a registered ophthalmologist. Exclusion Criteria: - Children under 18. - Unhealthy cornea as determined by a registered ophthalmologist.


NCT ID:

NCT01183702


Primary Contact:

Principal Investigator
Deborah M Grzybowski, PhD
Ohio State University


Backup Contact:

N/A


Location Contact:

Columbus, Ohio 43212
United States



There is no listed contact information for this specific location.

Site Status: N/A


Data Source: ClinicalTrials.gov

Date Processed: August 31, 2019

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