Actively Recruiting

Phase Not Applicable
Age: 18Years - 65Years
All Genders
Healthy Volunteers
NCT07274176

The Effect of Graded Forced Expiration on Intraocular Pressure

Led by Uşak University · Updated on 2025-12-22

60

Participants Needed

1

Research Sites

10 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

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.

CONDITIONS

Official Title

The Effect of Graded Forced Expiration on Intraocular Pressure

Who Can Participate

Age: 18Years - 65Years
All Genders
Healthy Volunteers

Eligibility Criteria

Eligible

You may qualify if you...

  • 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 cup-to-disc difference between both eyes not exceeding 0.2.
  • Have not taken any anticholinergic medication, systemic beta-blockers, or corticosteroids within the last 3 months that could affect intraocular pressure levels.
Not Eligible

You will not qualify if you...

  • History of intraocular surgery.
  • History of uveitis.
  • Spherical refractive error exceeding 3 diopters.
  • History of regular topical treatment other than artificial tears.

AI-Screening

AI-Powered Screening

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Trial Site Locations

Total: 1 location

1

University of Usak

Uşak, Turkey (Türkiye), 64200

Actively Recruiting

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Research Team

A

Ata Baytaroglu, Asst. Prof.

CONTACT

S

Serife N Ciftci, Asst. Prof.

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

SCREENING

Number of Arms

1

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