Assessing Dynamic Reading Behaviors Using Eye-Tracking Tobii Glasses

NCT05684224 | Recruiting

• 1 other identifier: IRBNET.ORG 1921452
• Study Type: observational
• Target: 10
• Locations: 1 country
• Sites: 1

Brief Summary

HYPOTHESIS:

1. 1.Horizontal convergence tracked with Tobii glasses is a reliable substitute for accommodation in young myopes and hyperopes with normal accommodative amplitudes
2. 2.Young mypopes and hyperopes demonstrate different reading behaviors during near work
3. 3.Compare the accommodative responses measured with the Grand Seiko open-field autorefractor to those derived from the Tobii Glasses, when subjects wear (1) spectacle glasses, (2) single vision contact lenses (SVCLs), and (3) multifocal contact lenses (MFCLs).
4. 4.Investigate subjects' natural and dynamic accommodative behaviors and eye postures during reading using the Tobii Glasses.
5. 5.Compare the change in natural and dynamic accommodative behaviors and eye postures during reading between myopes and hyperopes using the Tobii Glasses.

Conditions

Accommodation

Outcome Measures

Primary Outcomes (1)

• Horizontal convergence

  Horizontal convergence will be tracked using the Tobii Glasses

  Horizontal convergence during reading will be measured using the Tobii Glasses continuously for 5 minutes

Interventions

Dynamic accommodation BEHAVIORAL

Dynamic accommodation will be tracked using the Tobii Glasses

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: all
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Young adults between 18 and 30 years of age. Subjects will be recruited from students at SUNY College of Optometry.

You may qualify if:

• Age: Subjects who are 18 to 30 years old
• Refractive error: Subjects with myopia between -1.00 and -5.00 D in each eye (n = 5), or hyperopia between +2.00 and +5.00 D in each eye (n = 5), determined by spherical equivalent using dry manifest refraction and binocular balance
• Astigmatism \<= 0.75 D in each eye
• Anisometropia \<= 1.50 D
• BCVA at distance 20/20 in each eye
• Habitual contact lens wears or willing to wear single vision and multifocal contact lenses during the 2nd study visit
• Normal eye posture and accommodation
• Good general and ocular health

You may not qualify if:

• Strabismus at distance or near
• Amblyopia
• Significant anisometropia (\>1.50 D)

Sponsors & Collaborators

• State University of New York College of Optometry: lead

Study Sites (1)

Xiaoying Zhu

New York, New York, 10036, United States

RECRUITING

Central Study Contacts

Xiaoying Zhu, OD, PhD, MD, MS, FAAO

CONTACT

2129385541; xzhu@sunyopt.edu

Robert McPeek, PhD

CONTACT

212-938-5762; rmcpeek@sunyopt.edu

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Clinical Professor

Study Record Dates

• First Submitted: January 1, 2023
• First Posted: January 13, 2023
• Study Start: December 14, 2022
• Primary Completion: December 31, 2024
• Study Completion: December 31, 2024
• Last Updated: March 22, 2024

Record last verified: 2024-03

Locations

US (1)