Autostereoscopic Dynamic Near Vision Testing

Suspended

• Conditions: Color Vision Defects; Amblyopia; Visual Suppression
• Interventions: Diagnostic Test: Visual Acuity; Diagnostic Test: stereopsis; Diagnostic Test: Color vision

• Registration Number: NCT04606355
• Lead Sponsor: Alaska Blind Child Discovery

Brief Summary

This is an analysis of tests of near vision.

Visual perception testing using a novel program on an interactive three dimensional electronic device:

Autostereoscopic dynamic near games for monocular visual acuity, stereopsis and color are compared with other conventional or similar tests.

Detailed Description

Subjects with normal vision, exceptional vision, or visual deficits have near vision tested on the PDI Check game and compared to other clinical tests.

Interclass Correlation and Bland Altman analysis utilized for continuous data. Sensitivity and Specificity calculated for defined clinical entities. Subjects are not assigned to either one screening test or another; instead different tests are compared.

Study Timeline

• Study Start: 2017-11-16
• Study First Submitted: 2020-10-22
• Study First Submitted QC: 2020-10-22
• Study First Posted: 2020-10-28
• Status Verified: 2024-07
• Last Update Submitted: 2024-07-30
• Last Update Posted: 2024-07-31
• Primary Completion: 2024-12-31
• Study Completion: 2024-12-31

Recruitment & Eligibility

• Status: SUSPENDED
• Sex: All
• Target Recruitment: 300

Inclusion Criteria

• Normal subjects, patients with deficient binocular vision, patients with color vision disorders

Exclusion Criteria

• phthisis, enucleations

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
PDI Check & Conventional	Visual Acuity	Autostereoscopic, dynamic forced choice game (ie on Nintendo 3DS) and Rosenbaum or HOTV near card, Ishihara color plates, Innova Rabin color test, Titmus Stereo test
PDI Check & Conventional	stereopsis	Autostereoscopic, dynamic forced choice game (ie on Nintendo 3DS) and Rosenbaum or HOTV near card, Ishihara color plates, Innova Rabin color test, Titmus Stereo test
PDI Check & Conventional	Color vision	Autostereoscopic, dynamic forced choice game (ie on Nintendo 3DS) and Rosenbaum or HOTV near card, Ishihara color plates, Innova Rabin color test, Titmus Stereo test

Primary Outcome Measures

Name	Time	Method
Visual Acuity	day 1	Gold Standard clinical test of visual acuity
Color Vision	day 1	Gold Standard clinical test of color vision (Ishihara, Innova Rabin)
stereopsis	day 1	Gold standard clinical test of stereopsis (ie Titmus)

Trial Locations

Locations (1)

Alaska Blind Child Discovery; 🇺🇸 Anchorage, Alaska, United States