Frenzel goggles: Difference between revisions
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==Usage== |
==Usage== |
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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 [[diopter]]s) [[magnifying glass]]es 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.<ref>{{cite web |title=Frenzel Goggles |url=https://www.dizziness-and-balance.com/practice/frenzels.htm |website=www.dizziness-and-balance.com}}</ref> |
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 [[diopter]]s) [[magnifying glass]]es 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]].<ref>{{cite web |title=Frenzel Goggles |url=https://www.dizziness-and-balance.com/practice/frenzels.htm |website=www.dizziness-and-balance.com}}</ref> |
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==External links== |
==External links== |
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Revision as of 15:24, 13 September 2021
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.[1]
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.[2]
External links
- ^ http://www.tchain.com/otoneurology/practice/frenzels.htm Frenzel goggles and related devices
- ^ "Frenzel Goggles". www.dizziness-and-balance.com.