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

Yonsei University logo

Yonsei University

Status

Unknown

Conditions

Normal Healthy Volunteers

Study type

Observational

Funder types

Other

Identifiers

NCT03234504
4-2017-0507

Details and patient eligibility

About

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.

Enrollment

30 estimated patients

Sex

All

Ages

19 to 60 years old

Volunteers

No Healthy Volunteers

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.

Trial design

30 participants in 1 patient group

Normal healthy volunteers

Trial contacts and locations

1

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Central trial contact

Jinu Han, MD

Data sourced from clinicaltrials.gov

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