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
| 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
| 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 1Spherical equivalent refractive error in diopters will be compared between Myopia Check and traditional refraction.
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 1Presbyopic near point in diopters as measured by the VisionApp technique and composite standard clinical measurements.
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
Email: [email protected]
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place