Next-Generation Ophthalmic Diagnostic Technology

(Visual Field)

The XO Exam™ VFT Visual Field exam unit, part of Xenon Ophthalmics™ world’s first medical-grade wearable ophthalmic exam technology, designed to improve patient care and increase practice growth.

XO Exam VFT offers seven different visual field diagnostic tests and critical pupillary measurements with greater accuracy, speed, and patient comfort than conventional optical exam equipment.

For patients, our XO Exam system means greater access to the highest level of vision care available. For practitioners, our XO Exam system means increased patient volume, exam lane flow, and practice growth without sacrificing the quality of care you provide. 


Multiple Visual Field Exams in a Single Medical-Grade Device

Xenon Ophthalmics™ XO Exam™ VFT Visual Field Test Icon

Visual Field

XO Exam VFT offers complete Visual Field exam and testing (10-2, 24-2, 24-2C, 30-2), meeting Goldmann Perimetry Standards: Size – I, II, III, IV, V, and Swedish Interactive Threshold Algorithm (SITA) Faster, the most recent and fastest testing algorithm for the evaluation of Humphrey visual fields (VF). 

Xenon Ophthalmics™ XO Exam™ VFT Visual Acuity Test Icon

Visual Acuity

XO Exam VFT allows the practitioner to perform Visual Acuity testing to determine the smallest letters the patient can read by presenting a standardized Snellen chart, virtually simulated at 20 feet (6 meters) away. 

XO Exam VFT allows the performance of this test rapidly and efficiently, maximizing patient comfort.

Color Vision Deficiency 

XO Exam VFT provides quantitative and comprehensive Color Vision Deficiency testing using Ishihara, Farnsworth D-15, Cambridge, Farmsworth Munsell 100, and more methods for a detailed analysis of color blindness and/or the patient’s ability to accurately perceive colors. 

Xenon Ophthalmics™ XO Exam™ VFT Confrontation Field Test Icon

Confrontation Visual Field

Our XO Exam VFT unit performs Confrontation Visual Field testing, which is critically important in detecting brain diseases such as tumors and strokes, optic neuropathies, differentiating neuropathic from retinopathic disease, and evaluating patients with unexplained vision loss. 

XO Exam VFT Confrontation Visual Field testing provides standardization, accuracy, and repeatability not achieved with more traditional testing methods.

Xenon Ophthalmics™ XO Exam™ VFT Binocular Humphrey Test Icon

Binocular Humphrey Esterman Visual Field (EVFT)

XO Exam VFT provides Goldmann-standard Binocular Humphrey Esterman Visual Field (EVFT) testing to aid in the accurate diagnosis of  glaucoma.

XO Exam VFT provides controllable suprathreshold light intensity as low as 50 dB along with fields as wide as 130°.

Xenon Ophthalmics™ XO Exam™ VFT Extraocular Muscle Contrast Sensitivity Test Icon

Contrast Sensitivity

XO Exam VFT performs highly-accurate Contrast Sensitivity testing, a much more relevant measure of real-world vision.

Contrast Sensitivity testing measures the patient’s ability to distinguish between finer and finer increments of light versus dark (contrast).

Contrast Sensitivity is a critical measure of visual function, especially in situations of low light, fog, or glare when the distinction between objects and their background often is reduced., like driving at night.

Xenon Ophthalmics™ XO Exam™ VFT Extraocular Muscle Motility Function Test Icon

Extraocular Muscle Motility

Our cutting-edge eye and gaze tracking technology allows precision Extraocular Muscle Motility testing to evaluate weakness or other problems in the extraocular muscles.

These problems may result in double vision or rapid, uncontrolled eye movements.

With XO Exam VFT, the patient’s eye position and movements are captured more precisely than with traditional subjective observation, resulting in greater diagnostic accuracy.


XO Exam™ VFT Specifications

Xenon Ophthalmics XO Exam VFT visual field exam unit uses patented advancements in Eye-Tracking Software, Artificial Intelligence, and Machine Learning, all integrated into a wearable proprietary headset. The detachable, medical-grade diagnostic unit contains the company’s patented liquid lens technology, which can be tuned to fit each patient’s refractive error. In addition, precision eye tracking and gaze tracking software adjusts to and measures the patient’s pupil size and interpupillary distance (IPD) automatically for incredible accuracy.

Patents & Regulatory 
United States Patent Number: US 11,504,000 B2
U.S. Food & Drug Administration (FDA) Registration Number: 3021912304
WIPO/PCT International Patent Number: WO2021/022028 A1
WIPO/Hague International Register of Industrial Design Registration Number: DM/226213

Admin/Security & Support

XO Exam™ VFT
265-Bit Encryption Software
Analytics & Reporting
HIPPA & BAA Compliance
Warranty 1 Year: +Additional Warranty (Cost)
24/7 Email Support
24/7 Chatbot support
Phone Support (Business Hours)
Hardware Specifications
XO Exam™ VFTCompetitive Offerings*
Background Luminosity (31.5 ASB)No
Hardware Warranty
Maximum Visual Field Temporal Range Degree 70 Degrees24 Degrees
Pelican Case with Lock No
Phoropter (w/Liquid Lens Technology) No - Added Cost
Replaceable Batteries No
Subjective Visual Field Examinations No - Added Cost
Tablet Size (128GB) No - Added Cost
Trial Lenses Required No✓ - Added Cost
Wireless Charger No
Wireless Headset No
XO Exam™ VFT Modules No

*Compared to existing tabletop equipment.

XO Exam™ VFTCompetitive Offerings*
Accomondation Control Monocular & Binocular ViewNo
Additional Screening ExamNo - Added Cost
Automatic Pupil Measurement No
Binocular Humphrey Esterman Vision FieldsNo
Clouding Computing (Data Analytics software ) No
CommunicationsBluetooth Via Xenon App on Tablet No
Color Bind Vision (D-15) No
Confrontation Fields Test No
Contrast (Low) No
Custom Eye-Tracking Software No
Data Export: PDF, JPED, DICOM, PNG)
Contact LensNoNo
Does Exam Require Attending Technician? No
Extraocular Musclue MotilityNo
Eye Tracking (Capturing Eye Data) No
Interpupillary Distance (IPD) Range42 - 78mm No
HIPAA Compliance (After Leaving the Company)No
Integratable with CMS Existing Billing SoftwareNo
Operator Interface (for Technician User Interface) No
Per Exam Cost ✓ - Added CostNo
Progression Analysis No
Pupillometry Exam
Live Exam Video No
SaaS ModelNo
Stimulus Duration 200 ms200 ms
Stimulus Goldmann: GI-GVStimulus Goldman: GIII-GV
T-24, T-10 (Threshold Adult), S ( Suprathreshold Adult), TP-24, TP-10
(Threshold Pediatric) Landolt C Visual Acuity Near, Landolt C Visual
Acuity Distance, Extraocular Muscles (EOM), Confrontation Field (CF)
Test Pattern (10-2,24-2,30-2,24-2C)No (30-2)
Total Test Points54-19854-68
Visual Acuity (Power with Liquid Lens) No
Visual Field Eye Live Images No
Visual Field Testing Distance300 cm to InfinityNo


The XO Exam Ophthalmic Diagnostic System: Next-Gen Refractive Error and Visual Field Testing

Xenon Ophthalmics XO Exam units offer eyecare practitioners a way to expand their practice without sacrificing patient care and the expense of conventional diagnostic equipment. 

The XO Exam System combines first-of-its-kind, medical-grade patented ophthalmic diagnostic technology in two detachable headset units: XO Exam ABT (Aberrometry Testing) and XO Exam VFT Visual Field exam. 

The two units may be purchased separately, but when combined, creates a comprehensive vision care solution that radically transforms patient care and practice growth potential.

Put the XO Exam™ Ophthalmic Diagnostic System to Work in Your Practice

We are forming an early-interest list for eyecare practitioners to reserve XO Exam™ ABT and VFT units for 2023. Please complete the form below to put your practice on the list.