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In US & Canada: 800-348-2225
or: 574-259-2070
fax: 574-259-2102

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Bernell VTP
4016 N Home Street
Mishawaka, IN 46545

Color Vision Testing
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Farnsworth
D15 Color Test
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Item # LF15

Description:

Farnsworth Test for Congenital and Acquired color defects.

The Farnsworth D-15 contains a reference disc holding notation 10 B 5 4 and fifteen numbered discs which make up an incomplete color circle. The patient arranges the discs and then evaluation of the patients arrangement separates 'normal' color perception from moderate and strong defects in deutan, protan or tritan axis color discrimination. The disks are spread out on a table and arranged by the patient. The Farnsworth D-15 test is a subset of the well known Farnsworth 100 Hue Test. It is intended for classification instead of in-depth study of color vision defects. The D-15 and 100 hue tests are correlated.

Growing Importance of Color deficiency Screening:

In addition to congenital color deficiency screening there is growing evidence that adult acquired color deficiency, especially in yellow and blue perception, can indicate medical toxicity and other problems. Increasingly complex security and medical systems also require verification of all three types of color receptors.

How the D-15 test works:

The Farnsworth D15 is called 'dichotomous' because it is designed to separate subjects into one of two groups, 1) Strongly color deficient or 2) Mildly color deficient or color normal. This is accomplished by the arrangement of vivid (saturated) colored discs. A perfect score shows normal color perception. A non-perfect score is used to determine a medium or strong color deficiency.

Complete Product:

The D15 includes a durable laminated score template for copying and comprehensive instructions. A supply of Non-Latex gloves which are powdered on the inside for the test subjects fingers (to maintain clenliness and accuracy of the color discs)

Used by industry, military service and educational and vocational centers. Used for patients of all ages.

NOTE: Farnsworth 100 Hue Color Test is also available as a special order item. Call and ask for current price (Item#:LV355300)

Price:   $309.00

Quantity:   Increase Quantity Decrease Quantity

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Note all prices are wholesale to doctors; schools; hospitals; government.
Prices to the public are required to be 50% additional.
Also note that prescription pharmaceuticals may only be shipped to licensed doctors at their
offices or hospitals. Effective March 1st, 2008, there will be $35 minimum order on all prescription pharmaceuticals. Bernell does not fill prescriptions for individuals.
The use of vision therapy products is governed by individual state law and should only be used under the direct supervision of an eyecare professional.

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