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SmartSystem Virtual Reality Headset Perimeter Versus Humphrey HFA-III Perimeter

Comparison of a Novel Head-Mounted Perimeter Versus the Humphrey Field Analyzer

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05674890
Enrollment
52
Registered
2023-01-09
Start date
2023-01-03
Completion date
2023-06-01
Last updated
2024-08-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glaucoma

Keywords

Glaucoma

Brief summary

The goal of this clinical trial is to compare a new device for testing peripheral vision (the SmartSystem virtual reality headset) to the currently most commonly used standard testing device (the Humphrey HFA-III). The main questions this clinical trials aims to answer are: 1. How comparable in performance, accuracy, and patient comfort the SmartSystem VR headset is to the Humphrey HFA-III, and 2. Surveying patients about the perceived ease of use and patient experience with the SmartSystem VR headset, compared to the Humphrey HFA-III. Participants will be asked to use the SmartSystem VR headset to take an additional visual field test (which takes between 10 to 15 minutes to do) and to take a brief survey about their experience. This will occur on regularly scheduled clinic visits and done in addition to the standard tests and examinations scheduled for that day. Researchers will compare the patients' test results and survey responses for both the SmartSystem VR headset and the Humphrey HFA-III to see which has more favorable performance, reliability, duration of testing and user experience.

Detailed description

The purpose of this prospective study is to compare the novel SmartSystem VR Headset (M&S Technologies, Niles, IL) to the Humphrey Field Analyzer (Carl Zeiss Meditec Inc., Dublin, CA). Use of the Humphrey Field Analyzer is part of routine clinical care of glaucoma and would be completed regardless of study participation. The proposed study will be conducted at the University of Iowa Hospitals and Clinics. We estimate 50 subjects will be recruited to participate in the study. Data collected will not include patient identifiers. The research will involve prospective collection of visual field tests. Patients with suspected, mild, moderate, or severe glaucoma will be included. Clinical data including age, gender, ethnicity, visual acuity, intraocular pressure, severity of disease, Humphrey HFA-III performance, SmartSystem VR Headset performance, and satisfaction survey will be recorded. Subjects will undergo regular clinical examination, including measurement of visual acuity, intraocular pressure, slit lamp examination by their physician, and visual field testing as indicated. When it comes time to perform visual field testing, subjects will be randomized to complete either the SmartSystem VR Headset visual field test first followed by the Humphrey Field Analyzer visual field test, or vice versa. Visual field tests will be separated by a rest period of 10 to 15 minutes to minimize testing fatigue. The SmartSystem VR Headset is fit to subjects' head using an adjustable head strap. Once the headset it fit to the subject, a research assistant will send a test to the headset from a bluetooth-connected electronic device using M&S Technologies' secured application platform. Subjects will follow prompts from the SmartSystem VR Headset to complete their visual field test, responding using a handheld trigger device. Testing is expected to take approximately 5-15 minutes, depending on the subjects' severity of visual field loss. Following visual field testing using both the SmartySystem VR Headset and Humphrey Field Analyzer, subjects will complete a 13-question satisfaction survey. The total expected time commitment of this study is a 1 to 2 hour visit. M&S Technologies is the developer of the SmartSystem VR Headset visual field test. As the developers, M&S Technologies maintains a secure, encrypted, HIPAA-compliant database of SmartSystem VR Headset users. This database includes patient profiles containing unique subject IDs (de-identified), birth year (but not specific date), and visual field testing results. Outside of this testing information, M&S Technologies does not have access to any additional patient information.

Interventions

DIAGNOSTIC_TESTSmartSystem VR Headset perimeter

Patients will undergo visual field testing with the head-mounted SmartSystem VR Headset perimeter.

Sponsors

Andrew Pouw, MD
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE

Intervention model description

The described study was a validation study comparing a novel testing device to the current clinical standard. The order of testing was randomized, so the design is that of a crossover study.

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
No

Inclusion criteria

* Patients between 18-100 years of age with suspected, mild, moderate, or severe glaucoma

Exclusion criteria

* Non-English speakers, patients with systemic or ocular disease affecting central vision, best corrected visual acuity less than 20/80, neurocognitive or psychiatric disorders that would confound visual field testing, those with physical inability to perform testing, and astigmatism with absolute values greater than 2.00 diopters

Design outcomes

Primary

MeasureTime frameDescription
Visual Field Performance Metric #1 - Mean DeviationThis measurement will automatically be reported upon conclusion of each visual field test. Visual field testing is estimated to take 5-15 minutes for each visual field test. All testing will occur on the same day within a 1-2 hour period.Mean deviation indicates how much, on average, an entire visual field deviates from the age-normal value. It is the center-weighted average of the decibel deviations at each point tested in the visual field test. The measurement is reported in decibels.
Visual Field Performance Metric #2 - Pattern Standard DeviationThis measurement will automatically be reported upon conclusion of each visual field test. Visual field testing is estimated to take 5-15 minutes for each visual field test. All testing will occur on the same day within a 1-2 hour period.Pattern standard deviation reflects irregularities in a visual field, such as those caused by localized defects. This metric shows sensitivity losses after adjusting for generalized depression or elevation in the overall hill of vision (e.g. cataracts). The measurement is reported in decibels.
Visual Field Performance Metric #3 - Test DurationThese measurements will be derived during data analysis following study completion. The exact study duration is unclear; however, we aim to recruit enough patients to analyze 80 eyes worth of data. We estimate this will take 3-6 months.This metric indicates how long each visual field test took to complete per eye.

Secondary

MeasureTime frameDescription
Visual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.This question will be rated using a Likert scale. Response options will include very anxious/concerned, anxious/concerned, neutral, relaxed, and very relaxed.
Visual Field User Experience Question #5 - Given Instruction and Training, Would You Feel Comfortable Performing Visual Field Testing by Yourself at Home Using the Smart System Virtual Reality Headset?Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.Response options will include yes, no, and maybe.
Visual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.This question will be rated using a Likert scale. Response options will include very uncomfortable, uncomfortable, neutral, comfortable, and very comfortable.
Visual Field User Experience Question #7 - Which Visual Field Test Would You Rather Use at Follow-up Visits?Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.Response options will include Humprey Field Analyzer, Smart System Virtual Reality Headset, and unsure.
Visual Field User Experience Question #6 - If the Smart System Virtual Reality Headset Were Available for Home Use, Would You Use it?Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.Response options will include yes, no, and maybe.
Visual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.This question will be rated using a Likert scale. Response options will include very hard, hard, neutral, easy, and very easy.
Visual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.This question will be rated using a Likert scale. Response options will include very hard, hard, neutral, easy, and very easy.

Countries

United States

Participant flow

Recruitment details

52 subjects (98 eyes) were recruited at the University of Iowa Hospitals and Clinics Department of Ophthalmology and Visual Sciences Glaucoma Service between January 2023 and June 2023.

Pre-assignment details

Subjects recruited for the present study completed two visual field tests, one with the Smart System VR headset and one with the Humphrey Field Analyzer III. The order of testing was randomized upon study enrollment using a random number generator.

Participants by arm

ArmCount
2-Arm Crossover Study Design
All patients will be in a single arm: patients will have one or both eyes (dependent on inclusion/exclusion criteria) tested with both the Humphrey HFA-III perimeter and the SmartSystem VR headset on the same clinic visit, spaced roughly 10-15 minutes apart. The sequence in which each patient undertakes the two tests will be randomized. SmartSystem VR Headset perimeter: Patients will undergo visual field testing with the head-mounted SmartSystem VR Headset perimeter.
52
2-Arm Crossover Study Design
All patients will be in a single arm: patients will have one or both eyes (dependent on inclusion/exclusion criteria) tested with both the Humphrey HFA-III perimeter and the SmartSystem VR headset on the same clinic visit, spaced roughly 10-15 minutes apart. The sequence in which each patient undertakes the two tests will be randomized. SmartSystem VR Headset perimeter: Patients will undergo visual field testing with the head-mounted SmartSystem VR Headset perimeter.
81
Total133

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall Study4 eyes were excluded due to neurocognitive disease interfering with testing capability.22
Overall Study5 eyes were excluded due to poor reliability indices23
Overall Study8 eyes were excluded due to systemic or ocular disease affecting central vision.35

Baseline characteristics

Characteristic2-Arm Crossover Study Design
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
45 Participants
Age, Categorical
Between 18 and 65 years
7 Participants
Age, Continuous73.70 years
STANDARD_DEVIATION 8.27
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
51 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Eye Tested
Left Eye
41 eyes
Eye Tested
Right Eye
40 eyes
Glaucoma Diagnosis
Aphakic
2 eyes
Glaucoma Diagnosis
Chronic Angle Closure
2 eyes
Glaucoma Diagnosis
Mixed-Mechanism
6 eyes
Glaucoma Diagnosis
Normal Tension
31 eyes
Glaucoma Diagnosis
Primary Open Angle
27 eyes
Glaucoma Diagnosis
Pseudoexfoliative
10 eyes
Glaucoma Diagnosis
Steroid-Induced
3 eyes
Glaucoma Severity
Early
25 eyes
Glaucoma Severity
Moderate
22 eyes
Glaucoma Severity
Severe
34 eyes
Sex: Female, Male
Female
34 Participants
Sex: Female, Male
Male
18 Participants
Spherical Equivalent
All Eyes
-0.67 Diopters
STANDARD_DEVIATION 1.9
Spherical Equivalent
Left Eye
-0.63 Diopters
STANDARD_DEVIATION 1.85
Spherical Equivalent
Right Eye
-0.72 Diopters
STANDARD_DEVIATION 1.98

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 210 / 31
other
Total, other adverse events
0 / 210 / 31
serious
Total, serious adverse events
0 / 210 / 31

Outcome results

Primary

Visual Field Performance Metric #1 - Mean Deviation

Mean deviation indicates how much, on average, an entire visual field deviates from the age-normal value. It is the center-weighted average of the decibel deviations at each point tested in the visual field test. The measurement is reported in decibels.

Time frame: This measurement will automatically be reported upon conclusion of each visual field test. Visual field testing is estimated to take 5-15 minutes for each visual field test. All testing will occur on the same day within a 1-2 hour period.

ArmMeasureGroupValue (MEAN)Dispersion
Single ArmVisual Field Performance Metric #1 - Mean DeviationSSVR MD-7.17 decibelsStandard Deviation 6.36
Single ArmVisual Field Performance Metric #1 - Mean DeviationHFA MD-6.88 decibelsStandard Deviation 4.51
Comparison: Prior to patient enrollment, a power calculation was conducted to assess the ability of our analyses to reliably detect differences between the HFA and SSVR. With a sample size of 80, assumed effect size of 0.15, standard deviation of 0.25, intraclass correlation coefficient of 0.50, and significance level of 0.05, our analysis reaches a power of 0.87.p-value: 0.297t-test, 2 sided
Primary

Visual Field Performance Metric #2 - Pattern Standard Deviation

Pattern standard deviation reflects irregularities in a visual field, such as those caused by localized defects. This metric shows sensitivity losses after adjusting for generalized depression or elevation in the overall hill of vision (e.g. cataracts). The measurement is reported in decibels.

Time frame: This measurement will automatically be reported upon conclusion of each visual field test. Visual field testing is estimated to take 5-15 minutes for each visual field test. All testing will occur on the same day within a 1-2 hour period.

ArmMeasureGroupValue (MEAN)Dispersion
Single ArmVisual Field Performance Metric #2 - Pattern Standard DeviationSSVR PSD4.26 decibelsStandard Deviation 2.37
Single ArmVisual Field Performance Metric #2 - Pattern Standard DeviationHFA PSD6.38 decibelsStandard Deviation 4.51
Comparison: Prior to patient enrollment, a power calculation was conducted to assess the ability of our analyses to reliably detect differences between the HFA and SSVR. With a sample size of 80, assumed effect size of 0.15, standard deviation of 0.25, intraclass correlation coefficient of 0.50, and significance level of 0.05, our analysis reaches a power of 0.87.p-value: <0.001t-test, 2 sided
Primary

Visual Field Performance Metric #3 - Test Duration

This metric indicates how long each visual field test took to complete per eye.

Time frame: These measurements will be derived during data analysis following study completion. The exact study duration is unclear; however, we aim to recruit enough patients to analyze 80 eyes worth of data. We estimate this will take 3-6 months.

ArmMeasureGroupValue (MEAN)Dispersion
Single ArmVisual Field Performance Metric #3 - Test DurationSSVR Test Duration323.44 secondsStandard Deviation 72.27
Single ArmVisual Field Performance Metric #3 - Test DurationHFA Test Duration372.20 secondsStandard Deviation 61.44
Comparison: Prior to patient enrollment, a power calculation was conducted to assess the ability of our analyses to reliably detect differences between the HFA and SSVR. With a sample size of 80, assumed effect size of 0.15, standard deviation of 0.25, intraclass correlation coefficient of 0.50, and significance level of 0.05, our analysis reaches a power of 0.87.p-value: <0.001t-test, 2 sided
Secondary

Visual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?

This question will be rated using a Likert scale. Response options will include very uncomfortable, uncomfortable, neutral, comfortable, and very comfortable.

Time frame: Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.

ArmMeasureGroupValue (NUMBER)
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Very Uncomfortable0 participants
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Uncomfortable3 participants
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Neutral7 participants
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Comfortable27 participants
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Very Comfortable15 participants
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Very Uncomfortable2 participants
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Uncomfortable22 participants
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Neutral17 participants
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Comfortable7 participants
Single ArmVisual Field User Experience Question #1 - How Would You Rate the Comfort of the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Very Comfortable4 participants
Secondary

Visual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?

This question will be rated using a Likert scale. Response options will include very hard, hard, neutral, easy, and very easy.

Time frame: Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.

ArmMeasureGroupValue (NUMBER)
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Very Hard0 participants
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Hard0 participants
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Neutral2 participants
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Easy18 participants
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Very Easy32 participants
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Very Hard0 participants
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Hard2 participants
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Neutral9 participants
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Easy19 participants
Single ArmVisual Field User Experience Question #2 - How Hard or Easy Was it to Understand the Instructions Given to You for How to do the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Very Easy22 participants
Secondary

Visual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?

This question will be rated using a Likert scale. Response options will include very hard, hard, neutral, easy, and very easy.

Time frame: Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.

ArmMeasureGroupValue (NUMBER)
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Very Hard0 participants
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Hard0 participants
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Neutral5 participants
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Easy19 participants
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Very Easy28 participants
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Very Hard5 participants
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Hard19 participants
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Neutral15 participants
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Easy11 participants
Single ArmVisual Field User Experience Question #3 - How Hard or Easy Was it to Use and/or Perform the Visual Field Test Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Very Easy2 participants
Secondary

Visual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?

This question will be rated using a Likert scale. Response options will include very anxious/concerned, anxious/concerned, neutral, relaxed, and very relaxed.

Time frame: Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.

ArmMeasureGroupValue (NUMBER)
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Very Anxious0 participants
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Anxious6 participants
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Neutral12 participants
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Relaxed24 participants
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?SSVR Very Relaxed10 participants
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Very Anxious1 participants
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Anxious21 participants
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Neutral13 participants
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Relaxed13 participants
Single ArmVisual Field User Experience Question #4 - How Much Anxiety or Concern Did You Have About Your Test Performance While Using the [Humphrey Field Analyzer/Smart System Virtual Reality Headset]?HFA Very Relaxed4 participants
Secondary

Visual Field User Experience Question #5 - Given Instruction and Training, Would You Feel Comfortable Performing Visual Field Testing by Yourself at Home Using the Smart System Virtual Reality Headset?

Response options will include yes, no, and maybe.

Time frame: Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Single ArmVisual Field User Experience Question #5 - Given Instruction and Training, Would You Feel Comfortable Performing Visual Field Testing by Yourself at Home Using the Smart System Virtual Reality Headset?Yes40 Participants
Single ArmVisual Field User Experience Question #5 - Given Instruction and Training, Would You Feel Comfortable Performing Visual Field Testing by Yourself at Home Using the Smart System Virtual Reality Headset?No3 Participants
Single ArmVisual Field User Experience Question #5 - Given Instruction and Training, Would You Feel Comfortable Performing Visual Field Testing by Yourself at Home Using the Smart System Virtual Reality Headset?Maybe9 Participants
Secondary

Visual Field User Experience Question #6 - If the Smart System Virtual Reality Headset Were Available for Home Use, Would You Use it?

Response options will include yes, no, and maybe.

Time frame: Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Single ArmVisual Field User Experience Question #6 - If the Smart System Virtual Reality Headset Were Available for Home Use, Would You Use it?Yes36 Participants
Single ArmVisual Field User Experience Question #6 - If the Smart System Virtual Reality Headset Were Available for Home Use, Would You Use it?No5 Participants
Single ArmVisual Field User Experience Question #6 - If the Smart System Virtual Reality Headset Were Available for Home Use, Would You Use it?Maybe11 Participants
Secondary

Visual Field User Experience Question #7 - Which Visual Field Test Would You Rather Use at Follow-up Visits?

Response options will include Humprey Field Analyzer, Smart System Virtual Reality Headset, and unsure.

Time frame: Subjects will respond to an approximately 5-10 minute survey upon completion of both visual field tests. The survey will be administered the same day as visual field testing at the conclusion of the estimated 1-2 hour period.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Single ArmVisual Field User Experience Question #7 - Which Visual Field Test Would You Rather Use at Follow-up Visits?SSVR46 Participants
Single ArmVisual Field User Experience Question #7 - Which Visual Field Test Would You Rather Use at Follow-up Visits?HFA2 Participants
Single ArmVisual Field User Experience Question #7 - Which Visual Field Test Would You Rather Use at Follow-up Visits?Unsure4 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026