Trial Outcomes & Findings for VisionApp - Refraction and Presbyopia (NCT NCT07570602)

NCT ID: NCT07570602

Last Updated: 2026-06-11

Results Overview

Spherical equivalent refractive error in diopters will be compared between Myopia Check and traditional refraction.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

16 participants

Primary outcome timeframe

Day 1

Results posted on

2026-06-11

Participant Flow

Participant milestones

Participant milestones
Measure
Visual Assessment
The subject will look at a phone running the VisionApp program set at a particular distance (calibration) and then be instructed to move further from, or closer to the phone, until a given target (letter, lines, patterns, etc) are more or less clear. 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).
Overall Study
STARTED
16
Overall Study
COMPLETED
16
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Visual Assessment
n=16 Participants
The subject will look at a phone running the VisionApp program set at a particular distance (calibration) and then be instructed to move further from, or closer to the phone, until a given target (letter, lines, patterns, etc) are more or less clear. 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).
Age, Categorical
<=18 years
0 Participants
n=16 Participants
Age, Categorical
Between 18 and 65 years
13 Participants
n=16 Participants
Age, Categorical
>=65 years
3 Participants
n=16 Participants
Age, Continuous
57 years
n=16 Participants
Sex: Female, Male
Female
9 Participants
n=16 Participants
Sex: Female, Male
Male
7 Participants
n=16 Participants
Region of Enrollment
United States
16 participants
n=16 Participants

PRIMARY outcome

Timeframe: Day 1

Spherical equivalent refractive error in diopters will be compared between Myopia Check and traditional refraction.

Outcome measures

Outcome measures
Measure
Visual Assessment
n=16 Participants
The subject will look at a phone running the VisionApp program set at a particular distance (calibration) and then be instructed to move further from, or closer to the phone, until a given target (letter, lines, patterns, etc) are more or less clear. 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).
Spherical Equivalent Refractive Error
0.00 diopters
Standard Deviation 0.63

PRIMARY outcome

Timeframe: Day 1

Presbyopic near point in diopters as measured by the VisionApp technique and composite standard clinical measurements.

Outcome measures

Outcome measures
Measure
Visual Assessment
n=16 Participants
The subject will look at a phone running the VisionApp program set at a particular distance (calibration) and then be instructed to move further from, or closer to the phone, until a given target (letter, lines, patterns, etc) are more or less clear. 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).
Near Presbyopic Add
-0.26 diopters
Standard Deviation 0.62

Adverse Events

Visual Assessment

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Pete Kollbaum

IU School of Optometry - Clinical Optics Research Lab

Phone: 812-856-0108

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place