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Topic: Anomaloscope

In the News (Wed 23 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Four-channel anomaloscope - Patent 4966453
		The four-channel anomaloscope as set forth in claim 8 wherein the second one of said filters is used to adjust the wavelength of the light rays emitted from the second bulb adjacent thereto to 480 nm.
		The four-channel anomaloscope as set forth in claim 8 wherein the third one of said filters is used to adjust the wavelength of the light rays emitted from the third bulb adjacent thereto to 440 nm.
		The four-channel anomaloscope as set forth in claim 8 wherein the fourth one of said filters is used to adjust the wavelength of the light rays emitted from the fourth bulb adjacent thereto to 500 nm.
	www.freepatentsonline.com /4966453.html (2581 words)

	Anomaloscope which can generate different illuminances for test - Patent 5734459
		The anomaloscope is claimed in claim 5, wherein one interference filter has a wavelength of 580 nm, a second interference filter has a wavelength of 480 nm, a third interference filter has a wavelength of 440 nm and a fourth interference filter has a wavelength of 500 nm.
		The anomaloscope as claimed in claim 1, wherein said dichroic mirror is tilted at a 45 degree angle in a direction of left-up and right-down, said dichroic mirror allows visible light to penetrate and reflects IR light.
		An anomaloscope which can generate different illuminance for test according to the present invention is thus constructed the middle plate at the internal of housing has a plurality of air holes at the same height with light bulbs having a diameter between 1 and 1.5 cm.
	www.freepatentsonline.com /5734459.html (5433 words)

	A NEW ANOMALOSCOPE (Site not responding. Last check: 2007-10-28)
		Spectral anomaloscopes on the basis of Lord Rayleigh's match are the standard for classifying congenital red-green color deficiencies.
		One reason is the intricate handling of the instrument which led to the developement of a new anomaloscope with an improved testing procedure.
		Discussion: Further investigation is necessary to validate (he efficiency of this new anomaloscope in the early diagnosis and follow-up of acquired color vision deficiencies caused by maculopathies.
	www.dog.org /engl/abstract97/K340.html (236 words)

	Journal of Vision - The relative merits of anomaloscope matches and colour discrimination tests in assessing loss of ...
		Anomaloscope colour matching (i.e., matching a spectral yellow with a mixture of red and green lights) and chromatic discrimination thresholds are the two most commonly used methods for assessing colour deficiency and loss of chromatic sensitivity.
		The purpose of this study was to examine the factors that cause variability in such measurements and to establish how performance on the anomaloscope correlates with the subject’s loss of chromatic sensitivity.
		Examination of model parameters reveals the limitations of anomaloscope matches and explains, at least in part, why the parameters of the yellow match are not a good measure of the subject’s ability to discriminate small colour differences.
	www.journalofvision.org /5/12/49 (338 words)

	Indmedica - Medico-Legal Update
		Anomaloscopes: are optical instruments in which the observer must manipulate stimulus control knobs to match two colored fields in color and brightness.
		While the anomaloscope remains the only clinical method for precise diagnosis of the presumed genetic entities, many tests have been devised for quick, inexpensive and efficient screening of the color-defective population.
		The anomaloscope is the only clinical instrument for diagnosis and classification of the presumed genetic entities of dichromacy and to both simple and extreme anomalous trichromacy as defined by Franceschetti.
	www.indmedica.com /journals.php?journalid=9&issueid=82&articleid=1089&action=article (1364 words)

	Journal of Vision - The relative merits of anomaloscope matches and colour discrimination tests in assessing loss of ...
		Anomaloscope colour matching (i.e., matching a spectral yellow with a mixture of red and green lights) and chromatic discrimination thresholds are the two most commonly used methods for assessing colour deficiency and loss of chromatic sensitivity.
		The purpose of this study was to examine the factors that cause variability in such measurements and to establish how performance on the anomaloscope correlates with the subject’s loss of chromatic sensitivity.
		Examination of model parameters reveals the limitations of anomaloscope matches and explains, at least in part, why the parameters of the yellow match are not a good measure of the subject’s ability to discriminate small colour differences.
	www.journalofvision.net /5/12/49 (338 words)

	Neitz OT2
		Anomaloscope OT-II is used to detect and differentiate red-green colour vision defects.
		Test results have been proved to coincide with those of Neitz Anomaloscope OT.
		By rotating the Colour Mixture knob, the upper half circle looks pure red, pure green, or a mixture of both coloured lights.
	www.medmont.com /distributors_for/refract/neitz/ot2.htm (397 words)

	Journal of Vision - The relative merits of anomaloscope matches and colour discrimination tests in assessing loss of ...
		Anomaloscope colour matching (i.e., matching a spectral yellow with a mixture of red and green lights) and chromatic discrimination thresholds are the two most commonly used methods for assessing colour deficiency and loss of chromatic sensitivity.
		The purpose of this study was to examine the factors that cause variability in such measurements and to establish how performance on the anomaloscope correlates with the subject’s loss of chromatic sensitivity.
		Examination of model parameters reveals the limitations of anomaloscope matches and explains, at least in part, why the parameters of the yellow match are not a good measure of the subject’s ability to discriminate small colour differences.
	journalofvision.org /5/12/49 (338 words)

	СтормовЪ - HMC Anomaloscope (ГЕРМАНИЯ)
		Anomaloscope - легкий многофункциональный прибор для ранней и точной экспресс диагностики заболеваний, связанных с нарушением цвето - и световосприятия.
		Anomaloscope HMC-R: Прибор для точной оценки цветового зрения в красно-зеленом диапазоне (уравнение Рэлея) с ручным или автоматическим управлением.
		Anomaloscope HMC-MR: Прибор для точной оценки цветового зрения в красно-зеленом диапазоне (уравнение Рэлея) или зелено-синем диапазоне (уравнение Мореланда) с ручным или автоматическим управлением.
	www.stormoff.com /foreign/archive/oculus_HMC.htm (72 words)

	JAA Manual of Aviation Medicine
		If it is a matter of the definition specified in the primary screening method as to weather this group should be classified as normal of defective.
		When examining an anomalous trichromate with Nagel anomaloscope, different scale readings are used to express the result.
		The colour matching range is defined as the difference between the maximum and the minimum scale reading accepted by the examinee as identical to the test colour.
	digilander.libero.it /cvdpilot/jaa_manual_of_aviation_medicine.htm (1911 words)

	theories
		The anomaloscope is an instrument used in the diagnosis of red-green deficiencies.
		A mixture field composed of red and green wavelengths is presented in the top half of the display, the bottom half of the test field is yellow.
		A major advantage of the Nagal anomaloscope is that it can distinguish between dichromatic and anomalous trichromatic vision by measuring the balance of red and green wavelengths in the mixture field.
	psychology.ucalgary.ca /pace/VA-Lab/colourperceptionweb/congenital.htm (2338 words)

	EPOS - European Paediatric Ophthalmological Society (Site not responding. Last check: 2007-10-28)
		Therefore at age 7, special psychophysical tests, including perimetry, Nagel anomaloscope, spectral sensitivity measurement and electrophysiological tests were conducted.
		Anomaloscope testing revealed normal matching ranges, which indicates the presence of long- and middle-wave cones of normal spectral sensitivity and normal optical density.
		The slightly elevated colour discrimination thresholds that were detected are compatible with a reduction in cone numbers.
	www.epos-focus.org /meeting/2002/showabstract.php?id=11 (282 words)

	IngentaConnect Color Vision Tests for Aviation: Comparison of the Anomaloscope a... (Site not responding. Last check: 2007-10-28)
		Introduction: A comparison of the results obtained with the Nagel anomaloscope and the Holmes-Wright Type A, Spectrolux, and Beyne aviation color vision lanterns was undertaken.
		Of the normal trichromats, 12 failed the anomaloscope and 12 failed the Beyne lantern.
		Since the flight safety consequences of the current situation cannot be ignored, the development of a less variable technique for color vision assessment that is accepted internationally, allied with a better understanding of color vision requirements, is needed.
	www.ingentaconnect.com /content/asma/asem/2005/00000076/00000005/art00001 (338 words)

	VisionRx Services for Doctors
		Rayleigh Anomaloscope, which accurately diagnoses red-green color variations.
		Blue-Green Anomaloscope: This is a color matching test which accurately diagnoses blue-yellow color variations.
		Red-Blue Anomaloscope: This is an experimental color matching test which explores the red-blue spectrum.
	www.visionrx.com /doctors.asp (400 words)

	Detailed Interpretation of the Nagel Anomaloscope
		The Nagel Anomaloscope was first developed in the early 1900's.
		The locus of his vision on the anomaloscope is indicated by the complete length of the sloping line that merges with the deutranope line on the left.
		The locus of his vision on the anomaloscope is indicated by the complete length of the sloping line that merges with the tetartanope line on the left.
	www.4colorvision.com /files/newnagel.htm (737 words)

	Publication Abstracts- Aerospace Medical Association
		The range of Falant error scores was continuous with no demarkation between the criteria for pass and fail.
		It was not possible to identify anomalous trichromats likely to pass the Falant from the size of the anomaloscope matching range or from the results of Farnsworth-Munsell tests.
		Conclusions: People with severe red-green color deficiency fail the Falant, but neither the type nor the severity of color deficiency can be determined either from the qualitative results or from the error score.
	www.asma.org /journal/abstracts/v70n1/v70n1p62.html (255 words)

	EVER
		The purpose of this investigation was to examine the factors that cause changes in chromatic sensitivity in order to explain the inherent variability within normal trichromats and the existence of unusual extreme anomaloscope matches.
		We measured and compared colour discrimination thresholds and Nagel anomaloscope matches in a large number of “normal” trichromats and a group of colour deficient observers.
		Genetic analysis was also carried out in a subgroup of subjects to determine the spectral separation between the L and M pigments.
	www.ever.be /view_abstract.php?abs_id=2696&action=print (275 words)

	::Welcome To BARMED Medical Company::
		The HMC (Heidelberg Multi-Color) Anomaloscope is a microprocessor-controlled device for precision diagnosis of color vision in the red/green area (Rayleigh equation) and in the blue/green area (Moreland equation) with integrated automatic neutral adaptation.
		Heidelberg Multi Color Anomaloscope (HMC-R) for precision assessment of color vision in the red/green range (Rayleigh equation) including hand control unit.
		Heidelberg Multi Color Anomaloscope (HMC-MR) for precision assessment of color vision in the red/green range (Rayleigh equation) or blue/green range (Moreland equation) including hand control unit and optical top (4 degree) for blue/green testing.
	www.barmed.net /Product_Oculus_HMCAnomaloscope.asp (216 words)

	LKC Technologies -- Color Vision Testing (Site not responding. Last check: 2007-10-28)
		Until recently, the only truly sensitive diagnostic tests of color vision were the Farnsworth-Munsell 100 Hue test and the anomaloscope.
		Based on the same principles as the anomaloscope, these tests are accurate, diagnostic, and reimbursable (CPT Code: 92283).
		Both these tests take about one minute to administer and score, and can be used with children as young as 4 years old.
	www.lkc.com /colortesting.htm (266 words)

	Publication Abstracts- Aerospace Medical Association
		Method: There were 138 color deficient subjects identified with the Ishihara plates and diagnosed with the Nagel anomaloscope, completed a color vision test battery which included three runs of the nine color pairs of the Holmes-Wright lantern at high brightness in normal room illumination.
		The mean error score was greater for protans than for deutans but the mean number of qualitative error categories was smaller.
		It was not possible to predict who would pass the lantern test from other test results but all subjects with a Nagel anomaloscope matching range > 15 scale units who failed the Farnsworth D15 test or were grading as moderate/severe with the American Optical Company (Hardy, Rand and Rittler) plates failed.
	www.asma.org /journal/abstracts/v70n9/v70n9p897.html (348 words)

	Colorblindness and On-line Tests - Hiddentalents.org
		There is also a simpler D-15 test with only 15 colors, but the bigger test would be better for companies that work a lot with color.
		It involves changing the brightness of red and green lights to match a "standard yellow." The Nigel Anomaloscope is an example.
		Again, the tests are expensive and need a specialist to do properly, but they give exact measurements of red and green problems.
	members.shaw.ca /hidden-talents/vision/color/colorblind2.html (410 words)

	Amazon.com: Anomaloscope: Books (Site not responding. Last check: 2007-10-28)
		Special instruments (anomaloscopes) are made for testing the Rayleigh equation, which provide a...
		The anomaloscope, which is discussed later in this chapter, is the...
		the focometer for studies in the length of objectives, the anomaloscope for color blindness, and the spectroscope for the measurement of...
	www.amazon.com /s?ie=UTF8&keywords=Anomaloscope&tag=xq23-20&index=books&linkCode=ur2&camp=1789&creative=9325&page=1 (1246 words)

	Klinika Oczna
		In all cases were tested the dynamic blue- green equation of Moreland and two variables were determined: setting (matching) range (SR), calculated mid point (matching mid point) (CMP).
		The results indicate a diminution of the colour discriminating sensitivity in the short wavelength half of the visible spectrum and diminution of the blue cone sensitivity in early diabetic retinopathy.
		Conclusions: Blue - green colour vision testing with the anomaloscope may serve as an additional test in the diagnosis of early diabetic retinopathy in children without vascular changes at the eye fundus.
	www.okulistyka.com.pl /klinika/nr_34_02_art13.htm (193 words)

	Evaluation of a New Color Vision Test
		A battery of color vision tests including the Ishihara, Panel D-15, and the anomaloscope were used for the diagnosis and classification of color deficiency.
		The problem reported when using standard tests like the D-15, AO HRR, Ishihara Test, Dvorine Plates, and Anomaloscope to test mentally handicapped patients was a high level of false-positives (to many patients incorrectly identified as color deficient).
		The primary difficulty for each of these color vision tests with mentally handicapped patients was trouble understanding the task required (e.g., understanding how to arrange the colored caps in the D-15 test).
	www.colorvisiontesting.com /color6.htm (1333 words)

	CAA unrestricting JAA Class 1 medical - PPRuNe Forums
		Now i'll give you a description of the Anomaloscope test: the Nagel's Anomalocope looks like a microscope, you sit in front of a desk where the device is located and you look right into the lens.
		I suggest you to have another Nagel Anomaloscope test in Switzerland or Germany,or somewhere else which is not the place where that idiot made you fail it!!
		The Anomaloscope I was tested on showed only one circle, and i had to make the semicircles it was divided into look as much similar as possible, if not alike!
	www.pprune.org /forums/showthread.php?t=202564 (1403 words)

	Indexing Initiative Prototype (Site not responding. Last check: 2007-10-28)
		First, we evaluated the test's efficacy as a color deficiency screener and its validity in classifying the types of color deficiencies by comparing its results with those from the Moreland anomaloscope.
		Second, we eliminated the chromatic factor and evaluated the functional ability of young children to perform the task by determining how many correct responses were obtained using modified fl/white replicas of the test plates.
		Subjects were then tested with the Kojima-Matsubara test and result were compared with those from the anomaloscope.
	ii.nlm.nih.gov /Demo/Citations/98021518.html (432 words)

	EyeRounds.org: Definition of Terms
		Nagel anomaloscope: A device that used to determine degree of red or green color vision deficit.
		A dial on the anomaloscope is adjusted until the viewer (patient) believes that the green-red balance is appropriate compared with a standard yellow light whose intensity can also be varied.
		When a person with normal color vision views the “match” made by a patient with abnormal color vision, a deficit in either red or green color vision is readily apparent.
	webeye.ophth.uiowa.edu /eyeforum/glossary.htm (1804 words)

	COLOURVISON AFTER REMOVAL OF SUBMACULAR NEOVASCULAR MEMBRANES (Site not responding. Last check: 2007-10-28)
		Prcoperatively and three month after surgery colow vision was tested using Ishihara’s colour plates, Farnsworth Panel D 15 and D 28 test and the Nagel anomaloscope.
		Most colour deficiencies occurred in the tritan axis, but ten patients had combined colour defects pre- and postoperative.
		The Nagel anomaloscope could only be used in six patients because of difficult fixation and central suppression scotomas.
	www.dog.org /engl/abstract97/P611.html (333 words)

	OEDILF - Word Lookup
		As she rode through the streets on a dare.
		The anomaloscope measures color vision by having the subject mix colors to match what it displays.
		The information on this page may not be reproduced in any form without written permission by the.
	www.oedilf.com /db/Lim.php?Word=anomaloscope (106 words)

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