Actively Recruiting
VisionApp - Ghosting
Led by Indiana University · Updated on 2026-05-14
12
Participants Needed
1
Research Sites
42 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Recent Android mobile device technology is available which allows user-measured refractive error and reading add power. This technology could be quite useful to the clinical and research community. The current study aims to evaluate the accuracy, repeatability, and reproducibility of one such technology by VisionApp, specifically with regard to ghosting vision. VisionApp is an app which runs on a smartphone or other device which uses the distance between the user's face and the phone to determine refractive error, while the user looks at different targets (lines, letters, words, etc).
CONDITIONS
Official Title
VisionApp - Ghosting
Who Can Participate
Eligibility Criteria
You may qualify if you...
- has a refractive error between Plano and -5.00 D of sphere and cylinder components combined.
- has refractive cylinder (e.g., astigmatism) of -0.75 D or less
- has had a self-reported oculo-visual exam in the last 2 years
- has best-corrected visual acuity of at least 20/20 in each eye
- is not amblyopic or does not have any diagnosed ocular disease
- is willing and able to follow instructions and maintain the appointment schedule
You will not qualify if you...
- has any systemic disease affecting ocular health and visual acuity
- is currently using any systemic or topical medications that could affect ocular health and visual acuity
- is participating in another eye related research study
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Clinical Optics Research Lab
Bloomington, Indiana, United States, 47405
Actively Recruiting
Research Team
P
Pete Kollbaum, PhD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
DIAGNOSTIC
Number of Arms
4
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