OPTOM FASLU MUHAMMED

Screening test for RED-GREEN colourdeficiency.

It has 38 plates.

25 plates - numbers

13 plates – pathway.

Viewed at two-third meter (arms length distance)

Viewing time – 4 sec/each plate

It consist of 38 plates

Demonstration plate - 1

Transformation plates - 2 - 9

Vanishing plates - 10 -17

Hidden plates - 18 -21

Classification plates - 22- 25

Tracing plates - 26- 38

Named by Dr shinobo Ishihara at Tokyo university.

-Pseudoisochromatic color plates which are circles in multiple patterns.

Color Vision OD :16/16

OS :10/16

The Farnsworth-Munsell 100-hue Color Vision

Tests (FM-100)

The Farnsworth dichotomous test(D-15)

The city university test

It consist of four wooden boxes

93 coloured caps (8 pilot + 85 removable caps)

Box 1:24 caps

Box 2:23 caps

Box 3:23 caps

Box 4:23 caps

The backs of the caps are numbered sequentially

Arrange the caps in random order

Open one case lengthwise before the subject

The object of the test is to arrange the caps in order according to the color

The cases can be given in any order

Allow subject necessary time for him to arrange the colors

After the subject has arranged the caps record the numbers in a scoring sheet in the order arranged by the subject

There are 10 plates.

Each plate consists of central colour and four peripheral colour.

Observer is asked to mix red

and green colour in such a

proportion that mixture should

match the given yellow coloured disc