Visual Acuity Clinical Trial
— SpeedwheelOfficial title:
Clinical Application of Objective Visual Acuity Measurement Using Suppression Method to Inhibit Optokinetic Nystagmus (OKN).
Verified date | May 2021 |
Source | University of Basel |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
Suppression of the optokinetic nystagmus when a target is perceived can be applied to assess visual acuity objectively. Our aim is to establish prediction intervals for this optokinetic nystagmus suppression test (Speedwheel Test, SW) so that SW acuity may be used to estimate Snellen acuity (FrACT- C and -E) in the clinic in adults and children unable to cooperate in other acuity testing.
Status | Completed |
Enrollment | 246 |
Est. completion date | September 30, 2020 |
Est. primary completion date | July 30, 2020 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 4 Years and older |
Eligibility | Inclusion Criteria: - able and willing to perform the test Exclusion Criteria: - under 4 years of age - unable or unwilling |
Country | Name | City | State |
---|---|---|---|
Switzerland | University Basel, University Eye Hospital Basel | Basel |
Lead Sponsor | Collaborator |
---|---|
University of Basel |
Switzerland,
Luethy ML, Schötzau A, Palmowski-Wolfe A. Establishing Prediction Intervals for the SpeedWheel Acuity Test in Adults and Children. Klin Monbl Augenheilkd. 2021 Apr;238(4):488-492. doi: 10.1055/a-1403-2218. Epub 2021 Apr 14. — View Citation
Schwob N, Palmowski-Wolfe A. Establishing an Objective Measurement of Visual Acuity with a Computerised Optokinetic Nystagmus Suppression Test. Klin Monbl Augenheilkd. 2020 Apr;237(4):502-505. doi: 10.1055/a-1119-6123. Epub 2020 Apr 24. — View Citation
Schwob N, Palmowski-Wolfe A. Objective measurement of visual acuity by optokinetic nystagmus suppression in children and adult patients. J AAPOS. 2019 Oct;23(5):272.e1-272.e6. doi: 10.1016/j.jaapos.2019.05.016. Epub 2019 Sep 14. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Prediction intervals of Snellen acuity for the SW | Prediction intervals of Snellen acuity for the SW compared to Landolt C and E symbols | 12 months | |
Secondary | Prediction intervals of Snellen acuity for Landolt C compared to E symbols | Prediction intervals of Snellen acuity for Landolt C compared to E symbols | 12 months |
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