NCT06812572

Brief Summary

The study is a prospective, multi-center, single-arm, non-randomized, non-blinded, observational study to evaluate the test-retest reliability of the Visibly Vision Test. Additionally, observational data will be collected to understand whether the subject performs the set-up process correctly and subject comprehension of the patient labeling will also be evaluated.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
25

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2019

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 4, 2019

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

March 5, 2019

Completed
20 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 25, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 25, 2019

Completed
5.9 years until next milestone

First Posted

Study publicly available on registry

February 6, 2025

Completed
Last Updated

February 6, 2025

Status Verified

January 1, 2025

Enrollment Period

21 days

First QC Date

March 5, 2019

Last Update Submit

January 31, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Test-retest variability (repeatability) of the Visibly Vision Test in the measurement of refractive error as assessed by the repeatability standard deviation using the Visibly software numerical outputs of estimated refractive error/correction.

    The refractive error measurements will be those given by the Visibly software numerical outputs of estimated refractive error/correction. For each component of the refractive error measured in diopters (sphere, cylinder, and spherical equivalent), the homogeneous repeatability will be assessed using repeated measurements within study eyes.

    Retest conducted between four and 72 hours after initial test.

Secondary Outcomes (1)

  • Collection of subject comprehension of critical aspects of patient labeling using subject response forms.

    Performed immediately after initial test completion

Study Arms (2)

Cohort 1

OTHER

Without using an available refractive correction and whose refractive error is no greater than -1.00D of myopia (spherical component in minus cylinder format) and with no greater than -2.00D of astigmatism in either eye

Device: Visibly Vision Test

Cohort 2

OTHER

With prior correction of no greater than -6.00D of myopia (spherical component in minus cylinder format) and require a spherical (non-astigmatic) over-refraction of no more than ±1.00 D in either eye

Device: Visibly Vision Test

Interventions

The Visibly Vision Test is used as a digital self-administered device to measure visual acuity and to subjectively measure refractive value for a patient's eye to determine the optical prescription for the conditions of myopia and astigmatism

Cohort 1Cohort 2

Eligibility Criteria

Age22 Years - 55 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Male or female, age 22 to 55 years at the time of consent;Recent (within 24 months) in-person comprehensive eye examination with a licensed eyecare professional and have prior prescription values (sphere, cylinder, axis) available;Subject must have either documented recent refractive error not greater than -1.00D of myopia and no greater than -2.00D astigmatism in either eye or documented prior correction no greater than -6.00D of myopia in either eye. Subject are without known existing eye disease or history of systemic disease that may affect the eye; Subjects with known BCVA of 20/32 or better per recent prescription

You may not qualify if:

  • Subject has had prior use of the Visibly Vision Test; Subjects with known diabetes mellitus; Subjects using ophthalmic or systemic corticosteroids; Subjects with known autoimmune conditions (e.g. Grave's disease, rheumatoid arthritis); Subjects with active corneal or conjunctival infection;Subjects with active corneal, conjunctival, or intraocular inflammation (i.e., uveitis); Subjects with known diabetic retinopathy; Subjects with known glaucoma or ocular hypertension; Subjects with known macular degeneration; Subjects with previous ocular surgery; Subjects using antihyperglycemic agents; corticosteroids; hydroxychloroquine (Plaquenil) and chloroquine (Aralen); tamoxifen (Nolvadex); Subjects with a history of measured spherical difference between left and right eye of 4.00 D or greater;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

TRA

Harlingen, Texas, 78550, United States

Location

MeSH Terms

Conditions

MyopiaAstigmatism

Condition Hierarchy (Ancestors)

Refractive ErrorsEye Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DEVICE FEASIBILITY
Intervention Model
SINGLE GROUP
Model Details: multi-center, single-arm, non-randomized, non-blinded, interventional study
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 5, 2019

First Posted

February 6, 2025

Study Start

March 4, 2019

Primary Completion

March 25, 2019

Study Completion

March 25, 2019

Last Updated

February 6, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations