exophthalmometer

ex·oph·thal·mom·e·ter

(ek'sof-thal-mom'ĕ-tĕr),
An instrument to measure the distance between the anterior pole of the eye and a fixed reference point, often the zygomatic bone.
Synonym(s): orthometer, proptometer, statometer
[exophthalmos + G. metron, measure]
Farlex Partner Medical Dictionary © Farlex 2012

ex·oph·thal·mom·e·ter

(eks'of-thal-mom'ĕ-tĕr)
An instrument to measure the distance between the anterior pole of the eye and a fixed reference point, often the zygomatic bone.
[exophthalmos + G. metron, measure]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

exophthalmometer

Instrument for measuring the amount of exophthalmos (or enophthalmos). There are several types, the most common being the Hertel exophthalmometer: it measures the distance between the corneal apex and the apex of the deepest angle of the lateral orbital margin of both eyes simultaneously, using either mirrors or prisms and a superimposed millimetre scale. The normal range varies between 12 mm and 21 mm and a difference between the eyes greater than 2 mm is suspicious.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
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References in periodicals archive ?
Proptosis was noted in the left eye, and Hertel exophthalmometer measurements were 18 mm for the right eye and 24 mm for the left eye.
Olfactory Neuroblastoma: A Rare Cause of External Ophthalmoplegia, Proptosis and Compressive Optic Neuropathy
Measurements with the Hertel exophthalmometer showed values of 30 mm for the right eye and 27 mm for the left eye (base 102 mm).
Unilateral Proptosis as the Presenting Feature of Papillary Thyroid Carcinoma
The exophthalmoses on the right and left sides were 15mm and 19mm by Hertel exophthalmometer (normal range: 10~15mm with laterality of less than 3mm for the Japanese).
A Case of Euthyroid Graves' Ophthalmopathy in a Patient Sero-Negative for TSH Receptor Autoantibody
There was a 4 mm proptosis of the left eye compared with the right eye, measured with an exophthalmometer. The findings on anterior segment examination of the right eye were normal.
Orbital apex syndrome after trauma in a 6-year-old a rare occurrence
The following ophthalmology parameters were analyzed: proptosis degree measured with Oculus Hertel exophthalmometer, ocular pressure, best-corrected visual acuity (BCVA), presence of lagophthalmos, and preservation of color vision.
The value of multidetector computed tomography of orbits in globe protrusion in comparison to hertel exophthalmometry
We evaluated patient's palpebral aperture (measured in millimeters), soft tissue involvement, proptosis (measured in millimeters with the use of the Hertel exophthalmometer), extraocular motility, and visual acuity (Snellen chart).
The Influence of Juvenile Graves' Ophthalmopathy on Graves' Disease Course
Exophthalmometry using Hertel's exophthalmometer with interlateral canthal distance of 100 mm read 15 mm in both eyes.
Intramuscular Cavernous Hemangioma of Medial Rectus Muscle in Paediatric Age Group
Intraocular Pressure (IOP) was measured by Goldmann applanation tonometer and proptosis was measured with Hertel's exophthalmometer. Fundus examination was done using slit lamp biomicroscopy with a +78D lens and indirect ophthalmoscopy with +20D lens.
Type-A carotid cavernous fistula: ophthalmological manifestations, management and outcome of treatment in 28 patients
The severity of proptosis can be quantified and monitored by either an exophthalmometer or radiologically with orbital scans.
Thyroid eye disease
On Hertel exophthalmometer, the measurements of the right and left eye were 23 and 24 mm, respectively.
Sarkoidozlu Bir Hastada Papiller Tiroid Kanseri ile Birlikte Seyreden Graves Hastaligi / Graves' Disease and Papillary Thyroid Carcinoma in a Patient with Active Sarcoidosis:
The exophthalmos measured by Hertel exophthalmometer was 19.1 [+ or -] 3.6 mm (ranged from 9 to 28 mm).
A Novel Three-Dimensional Vector Analysis of Axial Globe Position in Thyroid Eye Disease
Our ophthalmic examination showed that her visual acuity was 20/25 OU, and Hertel exophthalmometer measurements were 15 mm OU.
Orbital T-Cell Lymphoma with Discrete Enlargements of All Extraocular Muscles Bilaterally in Patient with Moon Face Countenance

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