A Prospective Clinical Study to Evaluate the Repeatability of the Visibly Vision Test

January 31, 2025 updated by: Visibly

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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Potentially eligible subjects who provide informed consent and are confirmed qualified will be presented a room simulating the home environment with, at minimum, a table; pair of internet-connected devices (if subject has not opted to use their own), as well as some common household items. Subjects will then be directed to visit the website clinical.opternative.com and follow instructions on the website to complete vision testing.

Following completion of the first test session, subjects will undergo a series of critical knowledge task questions administered by site staff to evaluate their understanding of the critical aspects of the proposed patient labeling. Subjects will not receive verbal feedback and the study staff will refrain from any non-verbal responses to the answers provided from the subjects.

At least four hours but not more than 72 hours from the completion of the first test, each subject will be asked to return to the testing room, and complete the Visibly Vision Test again, including repeating the on-boarding, set-up, test, and off-boarding processes.

Site staff will observe and document the second testing process in the same manner as for the subject's first test session.

Following completion of the second test (retest), subject participation will be considered complete.

Study Type

Interventional

Enrollment (Actual)

25

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 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

Exclusion Criteria:

  • 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;

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Device Feasibility
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Cohort 1
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
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
Other: Cohort 2
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
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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
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.
Time Frame: Retest conducted between four and 72 hours after initial test.

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 Outcome Measures

Outcome Measure
Measure Description
Time Frame
Collection of subject comprehension of critical aspects of patient labeling using subject response forms.
Time Frame: Performed immediately after initial test completion
Collection of response from subjects regarding their comprehension of critical aspects of patient labeling.
Performed immediately after initial test completion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 4, 2019

Primary Completion (Actual)

March 25, 2019

Study Completion (Actual)

March 25, 2019

Study Registration Dates

First Submitted

March 5, 2019

First Submitted That Met QC Criteria

January 31, 2025

First Posted (Actual)

March 25, 2025

Study Record Updates

Last Update Posted (Actual)

March 25, 2025

Last Update Submitted That Met QC Criteria

January 31, 2025

Last Verified

January 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • VVT-1002

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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