Corneal Topographer Fluorescein Patterns

The objective of this study is to determine if corneal topography can be used to predict the fluorescein pattern of keratoconus lenses on the eye. A corneal topography image will be taken and the computer selected lens will be placed on the eye. After placement of the lens color photographs will be taken of the eye's fluorescein pattern and compared to the computer predicted pattern.

Completed

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Key information

Conditions

Keratoconus Corneal Diseases Eye Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Iowa Hospitals and Clinics - Dept. of Ophthalmology

Iowa City, Iowa, 52242, United States

About this study

Subject population: keratoconus patients who have not undergone corneal surgery 100 subjects who come to UIHC for their contact lens care. We will approach them at their visit. We will not call potential participants from a database.

If topography is impossible to capture. Concommitant Corneal Disease Minors will be excluded

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

18 yrs of age or older with diagnosis of keratoconus and contact lens wearer

Exclusion criteria

Noncommittant corneal disease or surgery Inability to capture topography measurement

Treatment and study plan

Primary outcomes

Number of Participants With an Observable Difference Between Virtual Versus Actual Fluorescein Patterns

Time frame: Baseline first visit

Comparison of fluorescein patterns of rgp contact lens. Bearing and elevation fluorescein patterns will be compared between the actual (photo) and theoretical (computer generated) fluorescein patterns using standard clinical means.

Sponsors and collaborators

Lead sponsor

Christine Sindt

Other

Registry information

Official study title

Objective and Subjective Correlation Between Clinical Fluorescein Patterns and Theoretical Patterns Using the Medmont Corneal Topographer

Important dates

Study start: 2007
Primary completion: 2009
Study completion: 2009
First posted: Jan 2, 2008
Registry last updated: Nov 2, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed