aesthesiometer


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Related to aesthesiometer: pinch meter

es·the·si·om·e·ter

(es-thē'zē-om'ĕ-tĕr)
An instrument for determining the state of tactile and other forms of sensibility.
Synonym(s): tactometer, aesthesiometer.
[esthesio- + G. metron, measure]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

aesthesiometer 

Instrument for the measurement of sensitivity, especially tactile. The cornea and eyelid margins are the ocular structures measured. There are many types of aesthesiometers. The most common is that of Cochet-Bonnet (Fig. A7). It consists of a nylon monofilament of constant diameter which, depending upon its length, can exert more or less pressure. The length at which the subject responds to represents the corneal touch threshold. Others are non-contact and use a pulse of pressurised air or gas to stimulate the cornea. Note: also spelt esthesiometer. See corneal fragility; corneal hyperaesthesia; corneal sensitivity; corneal touch threshold.
Fig. A7 Cochet-Bonnet aesthesiometerenlarge picture
Fig. A7  Cochet-Bonnet aesthesiometer
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
References in periodicals archive ?
Touch thresholds at the lateral malleolus were measured with a Semmes-Weinstein Pressure Aesthesiometer [23].
Tactile hypersensitivity was measured in the rats subjected to CCI 12 days after surgery by the use of an automatic von Frey apparatus (Dynamic Plantar Aesthesiometer, Ugo Basile, Italy).
The Schirmer tear test (STT) (Schirmer test--Ophthalmos, Sao Paulo, Brazil), breakup time test (BUTT) (Fluoresceina strips--Ophtalmos, Sao Paulo, Brazil) and Cochet-Bonnet aesthesiometry (C-B) (Cochet-Bonnet aesthesiometer, Luneau Ophthalmologie, Paris), starting with 4-cm stimulus length, were conducted under physical restraint.
Touch thresholds were measured with a Semmes-Weinstein Pressure Aesthesiometer [29].
An UGO-Basile Dynamic Plantar Aesthesiometer (UGO 37450, Milan, Italy), with an improved calibrated von Frey filaments method [21, 24, 25], was operated by a trained investigator who was blind to the experimental allocation.
Three measures of peripheral sensation were made: tactile sensitivity at the ankle (assessed using a Semmes - Weinstein Pressure Aesthesiometer) [14], vibration sense at the knee (assessed using an electronic device which drove a 20O Hz vibration of varying intensity), and proprioception, which was tested using an apparatus which measured any error in matching the position of the lower limbs (measured in degrees) [12].