NCT07274176 The Effect of Graded Forced Expiration on Intraocular Pressure
| NCT ID | NCT07274176 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Uşak University |
| Condition | Intraocular Pressure |
| Study Type | INTERVENTIONAL |
| Enrollment | 60 participants |
| Start Date | 2025-12-15 |
| Primary Completion | 2026-02-10 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
This trial targets 60 participants in total. It began in 2025-12-15 with a primary completion date of 2026-02-10.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
The primary objective of this study is to utilize the Airofit device to systematically measure and characterize the changes in intraocular pressure across its six different levels of forced expiration. This investigation will provide crucial quantitative data on the IOP-respiratory effort relationship, enhancing our understanding of IOP dynamics during controlled respiratory stress and establishing a new, standardized paradigm for such research.
Eligibility Criteria
Inclusion Criteria: * Aged 18 years or older. * Willing and able to provide informed consent. * Have a best-corrected visual acuity of 6/12 or better. * Able to understand and follow instructions for using the Airofit device. * Have an optic nerve cup/disc ratio not exceeding 0.5, and have a c/d difference between both eyes not exceeding 0.2. * Did not have taken any anticholinergic medication, systemic beta-blockers, or corticosteroids within the last 3 months that could affect intraocular pressure levels. Exclusion Criteria: * a history of intraocular surgery, * a history of uveitis, * a spherical refractive error exceeding 3D, * a history of regular topical treatment other than artificial tears
Contact & Investigator
Ali Y Karahan, Prof.
STUDY CHAIR
University of Usak
Frequently Asked Questions
Who can join the NCT07274176 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, up to 65 Years, studying Intraocular Pressure. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT07274176 currently recruiting?
Yes, NCT07274176 is actively recruiting participants. Contact the research team at ata.baytaroglu@usak.edu.tr for enrollment information.
Where is the NCT07274176 trial being conducted?
This trial is being conducted at Uşak, Turkey (Türkiye).
Who is sponsoring the NCT07274176 clinical trial?
NCT07274176 is sponsored by Uşak University. The principal investigator is Ali Y Karahan, Prof. at University of Usak. The trial plans to enroll 60 participants.