Corneal Sensitivity in Patients With Sleep Apnea Syndrome
Public ClinicalTrials.gov record NCT02265133. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Corneal Sensitivity and Nerve Fiber Morphology in Patients With Sleep Apnea Syndrome
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study is a prospective, single center clinical trial to assess corneal sensitivity and nerve fiber morphology in patients with sleep apnea compared to normal controls. Healthy volunteers with no history of ocular or uncontrollable systemic disease will be encouraged to participate in the study. After execution and review of the consenting procedures, a detailed history will be taken and a slit lamp examination performed, verifying ocular health. This consists of an examination of both eyes including assessments of ocular lids, lashes, cornea and conjunctival evaluation. Corneal touch thresholds will be tested with a Cochet-Bonnet aesthesiometer, a standard non-invasive measure of corneal sensitivity. Corneal nerves will be imaged using a modified HRT in vivo confocal microscope. The in vivo confocal microscope allows for high resolution imaging of the nerve plexus under the corneal epithelium. This corneal nerve plexus is responsible for corneal sensitively and changes or loss have been established as an early, sensitive indicator of corneal neuropathy. The investigators anticipate that this study will require approximately 30 patients for each group and will last approximately 12 months for recruitment and completion of subject visit phases. There is only one clinical visit designed for this project, unscheduled visits may be scheduled in case of an adverse event. Patient recruitment will be complete at the one-year time point. At the 14 month time point, all data points will have been collected and assessment of the outcome measure (corneal sensitivity in sleep apnea patients versus control patients) will be complete.
Study identification
- NCT ID
- NCT02265133
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 130 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years to 90 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 16, 2015
- Primary completion
- Jun 30, 2022
- Completion
- Aug 19, 2024
- Last update posted
- Aug 20, 2024
2015 – 2024
United States locations
- U.S. sites
- 2
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Parkland Hospital | Dallas | Texas | 75235 | — |
| Aston Ambulatory Care Center | Dallas | Texas | 75390 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02265133, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 20, 2024 · Synced Sep 26, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02265133 live on ClinicalTrials.gov.