VisionApp - Ghosting

Summary

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

• Diplopia, Monocular

Interventions

DEVICE

Proclear 1 Day Contact Lens

Proclear 1 day is a commercially available single vision soft contact lens for single use (daily wear). Participants will wear these contacts at the beginning of the study visit to establish best corrected vision. Participants will then continue to wear this contact lens in one eye for the duration of the study visit.

DEVICE

MyDay Contact Lens

MyDay is a commercially available multifocal soft contact lens for daily wear. Adult participants will assess images for ghosting while wearing a MyDay contact lens in one eye. Order of exposure to this lens will be determined via randomization.

DEVICE

NaturalVue Contact Lens

NaturalVue is a commercially available multifocal soft contact lens for daily wear. Adult participants will assess images for ghosting while wearing a NaturalVue contact lens in one eye. Order of exposure to this lens will be determined via randomization.

DEVICE

MiSight 1 Day Contact Lens

MiSight 1 Day is a commercially available multifocal soft contact lens for daily wear. Children participants will assess images for ghosting while wearing a MiSight 1 Day contact lens in one eye. Order of exposure to this lens will be determined via randomization.

DEVICE

Investigational Contact Lens

An investigational multifocal soft contact lens for daily wear. While the contact lens is made of an FDA approved material which is already marketed in the United States, it differs from commercially available lenses in that it has a slightly different optical design. Children participants will assess images for ghosting while wearing this investigational contact lens in one eye. Order of exposure to this lens will be determined via randomization.

DEVICE

VisionApp

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.)

Sponsors & Collaborators

• Indiana University

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

DIAGNOSTIC

Masking

NONE

Model

CROSSOVER

Eligibility

Min Age

8 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2025-10-10

Primary Completion

2026-08-01

Completion

2026-08-01

FDA Device

Yes

Countries

• United States

Study Locations