Autostereoscopic Dynamic Near Vision Testing (PDICheck)
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
| ClinicalTrials.gov Identifier: NCT04606355 |
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Recruitment Status :
Active, not recruiting
First Posted : October 28, 2020
Last Update Posted : February 15, 2022
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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.
| Condition or disease | Intervention/treatment |
|---|---|
| Visual Suppression Amblyopia Color Vision Defects | Diagnostic Test: Visual Acuity Diagnostic Test: stereopsis Diagnostic Test: Color vision |
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 Type : | Observational |
| Estimated Enrollment : | 300 participants |
| Observational Model: | Case-Only |
| Time Perspective: | Cross-Sectional |
| Official Title: | Autostereoscopic Dynamic Near Vision Testing of Acuity, Stereo and Color on PDI Check |
| Actual Study Start Date : | November 16, 2017 |
| Estimated Primary Completion Date : | March 17, 2022 |
| Estimated Study Completion Date : | March 17, 2022 |
| Group/Cohort | Intervention/treatment |
|---|---|
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PDI Check & Conventional
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
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Diagnostic Test: Visual Acuity
autostereoscopic, monocular dynamic force choice test Diagnostic Test: stereopsis autostereoscopic dynamic forced-choice depth perception test Diagnostic Test: Color vision autostereoscopic forced choice monocular or binocular color vision tests |
- Visual Acuity [ Time Frame: day 1 ]Gold Standard clinical test of visual acuity
- stereopsis [ Time Frame: day 1 ]Gold standard clinical test of stereopsis (ie Titmus)
- Color Vision [ Time Frame: day 1 ]Gold Standard clinical test of color vision (Ishihara, Innova Rabin)
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
| Ages Eligible for Study: | 1 Year to 95 Years (Child, Adult, Older Adult) |
| Sexes Eligible for Study: | All |
| Accepts Healthy Volunteers: | Yes |
| Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Normal subjects, patients with deficient binocular vision, patients with color vision disorders
Exclusion Criteria:
- phthisis, enucleations
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04606355
| United States, Alaska | |
| Alaska Blind Child Discovery | |
| Anchorage, Alaska, United States, 99508 | |
| Principal Investigator: | Kyle A Smith, OD | Alaska Blind Child Discovery |
Publications:
| Responsible Party: | Alaska Blind Child Discovery |
| ClinicalTrials.gov Identifier: | NCT04606355 |
| Other Study ID Numbers: |
PDICheck |
| First Posted: | October 28, 2020 Key Record Dates |
| Last Update Posted: | February 15, 2022 |
| Last Verified: | February 2022 |
| Individual Participant Data (IPD) Sharing Statement: | |
| Plan to Share IPD: | Yes |
| Plan Description: | de-identified database on www.ABCD-Vision.org |
| Time Frame: | 1 year after recruitment, then ongoing |
| Access Criteria: | de-identified to any investigator with web access |
| URL: | http://www.abcd-vision.org/references/index.html |
| Studies a U.S. FDA-regulated Drug Product: | No |
| Studies a U.S. FDA-regulated Device Product: | No |
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stereopsis, visual acuity |
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Amblyopia Color Vision Defects Brain Diseases Central Nervous System Diseases Nervous System Diseases Vision Disorders |
Sensation Disorders Neurologic Manifestations Eye Diseases Cone Dystrophy Eye Diseases, Hereditary |

