Illuminated Frenzel goggles. +20 D binocular, rechargeable, bedside-ready.
The most accessible bedside test for nystagmus remains one of the most informative — provided fixation can be reliably removed. equiGLASSES delivers exactly this in a clean, point-of-care form. The +20 dioptre binocular lenses magnify the patient’s eyes for clear examiner viewing while blurring the patient’s vision to abolish fixation suppression, and built-in illumination keeps the eyes brightly visible even in a darkened examination room. A rechargeable battery keeps the device cordless and ready — at the bedside, in the clinic, or in the emergency room — preserving the simplicity that has always made Frenzel examination indispensable, while removing the friction of disposable cells and trailing wires.
Key Capabilities
- Binocular +20 D Frenzel lenses magnify the patient’s eyes for clear examiner viewing
- High-diopter lenses blur patient vision to abolish fixation suppression — a clean nystagmus exam every time
- Built-in illumination keeps the eyes brightly visible in a darkened examination room
- Rechargeable battery — cordless, no disposable cells, no trailing wires
- Lightweight, point-of-care form suited to bedside, clinic and ER use
- Preserves the simplicity of the classical Frenzel examination while modernising the hardware
Hardware Specifications
Test Protocols
Diagnostic Protocols
- Frenzel Examination — Spontaneous NystagmusObservation of resting nystagmus with fixation abolished.
- Frenzel Examination — Gaze-Evoked NystagmusEccentric gaze observation under fixation removal.
- Frenzel Examination — Positional TestingBedside positional manoeuvres (Dix-Hallpike, Roll Test, etc.) with clear nystagmus visualisation.
- Frenzel Examination — Head-Shake TestPost-headshake nystagmus assessment with fixation suppressed.
- Frenzel Examination — Provocative ManoeuvresValsalva, hyperventilation, vibration and Tullio test observations.
Highlights
- The decisive bedside instrument for acute vertigo — illuminates and magnifies spontaneous nystagmus that bare-eye examination would miss.
- Binocular +20-diopter optics let the clinician compare both eyes simultaneously, surfacing conjugacy and direction-changing patterns that monocular Frenzels cannot resolve.
- Cordless rechargeable design works at the bedside, in OPD, or on a ward round — no power outlet or cable to plan around.
- Functions as first-line examination tool, trainee teaching aid, and dependable backup when higher-end VNG hardware is unavailable.
- Stands alone as a complete point-of-care examination — no computer, no software, no calibration required.
