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Dynamic Light Scattering and Keratoscopy for Corneal Examination

NCT00050466 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 24

Last updated 2008-03-04

No results posted yet for this study

Summary

This pilot study will examine the usefulness of a new instrument called the Dynamic Light Scattering (DLS) device for documenting and monitoring changes in the cornea, the front part of the eye where contact lenses are placed. The DLS device uses a low-intensity laser similar to that used in supermarket checkouts to measure the cloudiness of the cornea. The results of this study may lead to further investigations using DLS to discover the cause of corneal clouding and to develop treatments to prevent it.

Healthy volunteers and patients with corneal clouding or opacification 18 years of age and older may be eligible for this study.

Participants will have a standard eye examination, including a check of visual acuity and eye pressure. The retina will also be examined and photographs of the cornea may be taken. For the DLS test, the subject sits in front of the device and looks at a yellow-green target while the cloudiness of the cornea is measured. Subjects will be tested four times. The entire procedure takes less than 30 minutes.

Conditions

  • Corneal Diseases

Sponsors & Collaborators

  • National Eye Institute (NEI)

    lead NIH

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2002-12-31
Completion
2005-09-30

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00050466 on ClinicalTrials.gov