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0551 / 32519

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Nystagmus Spectacle Type 502

fre_502aby Prof. Frenzel


Nystagmus Spectacle with:

  • hinged lenses
  • fixed connection wire
  • fixed head strap



Nystagmus Spectacle with hinged lenses by Prof. Frenzelfre_502b

Modern vestibular diagnostics require a high degree of precision when looking for spontaneous or provoked nystagmus. In many cases, the only way of making a correct diagnosis was to perform a technically complex electronystagmography (ENG). The new nystagmus spectacles by Prof.Frenzel represent a user-friendly alternative. The actual examination using these goggles takes place in a dark or a heavily dimmed room. The illumination of the inside of the goggles causes the patient to lose visual contact with his/her surroundings (preventing nystagmus-inhibiting visual fixation). At the same time, it is especially easy to observe the patient’s brightly illuminated eyes using magnifying lenses. This means it is often possible to detect immediately, just by looking at the patient, pathological nystagmus processes that would be impossible or difficult to detect, even when looking sideways.


Nystagmus Spectacle Type 502fre_502c

With the lenses turned up and the room illumination switched on, eye observation with maintained fixation is possible: e.g. the Hallpike-technique of termal examination. After switching off room illumination and hinging down the lenses, an immediate change-over into the actual luminous spectacle examination with elimination of fixation may be started.  




Power Supply Type 506netzteil_beide

Power supply of the nystagmus spectacle.      





DEHAG-Battery Container Type 504batteriegriff_neu_beide

In order to allow a usage independent of the power supply, alternatively the Nystagmus Spectacle can be supplied with power through the DEHAG-Battery container. It can be operated with three 1.5 Volt batteries, size C LR14/AM-2 (baby cells). (Batteries are not subject of the offer).      




Replacement cover Type 5.02.16fre_huelse

The cover ensures the shielding of the light bulb.      





Replacement lamp Type 507fre_elampe

The Nystagmus Spectacle Type 502 can be operated with a 4 Volt; 0.23 Ampere; 1 Watt replacement lamp. (Thread diameter: 3.5 x 0.35mm).   download prospectus Nystagmus Spectacles by Prof. Frenzel (1,5 MB)