Development and Validation of a Novel Stereoacuity Test Using Head-mounted Display

NCT ID: NCT03234504

Last Updated: 2018-06-20

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 30 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2017-07-24
• Study Completion Date: 2018-07-31

Brief Summary

This prospective study investigated the validity and test-retest reliability of stereopsis test using head-mount display (HMD). Contour-based circles (crossed disparity: 1,960 to 195 arc of seconds(arc secs)) were generated as separate images on a high resolution phone display (Galaxy S7; Samsung, Suwon, Korea) using a HMD (Galaxy Gear VR; Samsung, Suwon, Korea). Two images were independently projected to each eye as graded circles with random dot background. While the position of the stimulus changed from among 3 possible locations, the subjects were instructed to select the circle with disparity by pressing the corresponding position on a keypad. The results of the new HMD stereotest were compared to those from standard Randot and TNO stereotests.

Conditions

Normal Healthy Volunteers

Study Design

• Observational Model Type: OTHER
• Study Time Perspective: PROSPECTIVE

Study Groups

Normal healthy volunteers

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

1. The subjects who want or need to visual acuity test or to test for a prescription for glasses visited the hospital. 2. The Subjects' ages ranged from 19 to 60 years in the study.

Exclusion Criteria

1. Ocular alignment was assessed with cover-uncover and alternate prism cover testing at distance and near. Significant exodeviation included exophoria was considered to be ≥6 prism diopters were excluded.

2. Subjects with a history of ocular surgery within 3 months of the study were excluded.

3. Foreigners or subjects who are unable to understand informed consent were excluded.

4. Subjects with a history of eye problems, including infection, inflammation, cataract, vitreous opacity or retinal diseases were excluded.

5. Subjects with corrected visual acuity of 20/32 in bad eye were excluded.

6. Subjects with significant refractive error considered to be ≥2.00 diopters of anisometropia were excluded.

7. A female who is pregnant, may be pregnant, or is lactating was excluded.

• Minimum Eligible Age: 19 Years
• Maximum Eligible Age: 60 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Yonsei University

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

Institute of Vision Research, Department of Ophthalmology

Seoul, , South Korea

Site Status: RECRUITING

Countries

South Korea

Central Contacts

Jinu Han, MD

Role: CONTACT

jinuhan@yuhs.ac

+82-10-3764-7746

Facility Contacts

Jinu Han, MD

Role: primary

jinuhan@yuhs.ac

+82-10-3764-7746

Other Identifiers

4-2017-0507

Identifier Type: -

Identifier Source: org_study_id