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VisionApp - Ghosting

Assessment of the Accuracy and Repeatability of the VisionApp - Ghosting Measurement Protocol

Who can join

Ages 8 and older · All sexes · Healthy volunteers welcome

Inclusion Criteria:

* 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

Exclusion Criteria:

* 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

About the study

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).

What is being tested

• Proclear 1 Day Contact Lens (device)
• MyDay Contact Lens (device)
• NaturalVue Contact Lens (device)
• MiSight 1 Day Contact Lens (device)
• Investigational Contact Lens (device)
• VisionApp (device)

Sponsor: Indiana University · Participants: 12 · Started: Oct 10, 2025

Contact the study team

• Pete Kollbaum, PhD · Phone: 812-555-5500

Official record on ClinicalTrials.gov — NCT07571538

Locations in the U.S.

From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.