Head shaking test is performed without fixation.
— Central or peripheral vestibular pathology is demonstrated on the video?
— Which side is involved?
— Does the patient feel dizzy when lying, sitting or standing still?

— What vestibular pathology would you suspect in this case?
— Which is the lesion side?

Posttraumatic bilateral posterior canal BPPV.
* Which side to start treatment?
* Would you do both sides on one day?

Frenzel goggles are a diagnostic tool used in ophthalmology, otolaryngology and audiovestibular medicine for the medical evaluation of involuntary eye movement (nystagmus). They are named after Frenzel, a German physician.

Usage:
The purpose of the goggles is to disable the patient’s ability to visually fixate on an object while at the same time allowing the examiner to adequately visualize the eye. This is done by using high-powered (+20 diopters) magnifying glasses with an illumination system. With such a high-powered lens, it is unlikely that the patient can adequately focus and visually fixate on an object to suppress nystagmus.

Difference between the offered Frenzel goggles and common Frenzel goggles on the market:

— the way the patient’s eyes are illuminated. Traditional Frenzel gogg...