Nystagmus & Vertigo: A Diagnostic Duo
Dizziness isn’t just a fleeting sensation; it often signals deeper issues in the inner ear or brain. Vertigo and nystagmus often go hand in hand. In peripheral vertigo, both eyes move together, usually in a circular motion. Central vertigo shows direction-changing or vertical eye movements, often signaling brain involvement. Spotting these patterns helps pinpoint the root cause of dizziness quickly and accurately.
Inside the dizzy brain
ENT specialists use advanced diagnostic tools to uncover the root causes of dizziness, acting like clinical detectives. From eye-tracking to positional tests, these methods reveal what routine exams cannot do. So, which tests truly lead to accurate diagnoses? Let’s explore the top five ENT diagnostics that bring clarity to the chaos of dizziness.
EquiCOG: Next-Gen Videonystagmography device for Vertigo and Dizziness Diagnosis
EquiCOG elevates videonystagmography by integrating real-time head tracking, torsional eye movement plotting, and pupillometry, features missing in traditional systems.
Key Features
- Tracks horizontal, vertical, and torsional eye movements at 120 fps.
- Simultaneous head orientation and movement tracing.
- Advanced protocols: saccades, pursuit, gaze, optokinetic, caloric, and positional tests.
- Visualizes nystagmus direction, amplitude, and velocity in all planes.
- Real-time feedback with step prompts during tests.
EquiCOG delivers unmatched precision in diagnosing complex vestibular disorders.
EquiCCG: Smart Craniocorpography testing device for Balance Assessment
EquiCCG redefines craniocorpography with computer vision-based tracking, eliminating the need for dark rooms and manual calculations.
Key Features
- Automated Balance Metrics: Forward/lateral displacement, body axis spin, angular sway.
- Real-Time Feedback: Normative range indicators; normal, borderline, out of range.
- Comprehensive Protocols: Unterberger-Fukuda, Tandem Walk, Romberg.
- Advanced Imaging: Wide-angle ceiling camera + electronics-free head tracker.
- Efficient Workflow: Instant reports and streamlined data collection.
EquiCCG delivers fast, accurate, and user-friendly balance diagnostics, perfectly suited for modern vestibular clinics.
EquifHIT: Precision Testing device for Vestibulo-Ocular Reflex (VOR)
EquifHIT brings accuracy and innovation to vestibulo-ocular reflex testing, enabling targeted assessment of all six semicircular canals.
Key Features
- Individual Canal Testing: Evaluates each canal with optotypes at peak head velocity.
- High-Precision angular velocity Sensors: Tracks angular velocity in horizontal, RALP, and LARP planes.
- Optotype-Based Assessment: Uses Snellen and Landolt C charts for visual acuity testing.
- Automatic Rejection: Filters suboptimal trials for reliable results.
- Color-Coded Results: Green (normal), yellow (borderline), red (low) for easy interpretation.
- Comprehensive Reports: Detailed findings for each canal with automatic generation.
EquifHIT ensures fast, accurate, and clinically meaningful VOR evaluation, which is essential for diagnosing vestibular dysfunction.
EquiPOISE: Precision Posturography for Balance Assessment
EquiPOISE transforms posturography with high-resolution force measurement and real-time sway analysis, offering unmatched diagnostic and rehab capabilities.
Key Features
- Advanced Test Protocols: Sensory denial, motor complexity, weight shifts, and stability limits.
- Rehab Tools: Cognitive-postural training, proprioceptive pursuit, dynamic balance games.
- Real-Time Feedback: Instant sway graphs, directional instability detection.
- High-Resolution Platform: 60×60 cm surface, 100 Hz sampling, 24-bit ADC.
- Clinician-Friendly Analysis: No jargon, intuitive metrics like sway velocity and max sway distance.
- Universal Presentation: Time series and position plots for every protocol.
EquiPOISE empowers clinicians with precise diagnostics and engaging rehab tools—ideal for personalized balance care.
Vestibular Evoked Myogenic Potential (VEMP)
A VEMP test can evaluate if the organs in the inner ear and vestibular nerves are functioning correctly. VEMP testing is highly effective in diagnosing:
- Vestibular neuritis
- Acoustic neuromas
- Bilateral vestibular loss due to medication use or Meniere’s disease.4
The Bottom Line
From eye-tracking goggles to head-spinning reflex tests, ENT specialists now have tech that’s smarter than ever. Whether it’s EquiCOG decoding nystagmus, EquiCCG mapping your balance, EquifHIT testing your gaze stability, or EquiPOISE tracking your center of gravity, each tool brings precision to the dizzy puzzle. These aren’t just tests; they’re diagnostic game-changers. So, if your world’s been spinning, it’s time to meet the tech that knows why.
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References
- Brodsky MC, Dell’Osso LF. A unifying neurologic mechanism for infantile nystagmus. JAMA Ophthalmol. 2014;132(6):761-768. doi:10.1001/jamaophthalmol.2013.5833.
- Lui F, Foris LA, Tadi P. Central Vertigo. [Updated 2024 May 1]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. Available from:https://www.ncbi.nlm.nih.gov/books/NBK441861/
- Taevas Global. (n.d.). *Taevas Global*. Retrieved June 16, 2025, from https://www.taevasglobal.com/
- Vestibular test [Internet]. Bonsecours.com. [cited 2025 Jul 7]. Available from: https://www.bonsecours.com/health-care-services/ear-nose-throat-ent/treatments/vestibular-test