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ISHIHARA TEST, colour-discrimination, 38 plates

https://unicat.msf.org/cat/product/42162
STD EMEQISHI38-

Valid Article

Former Code(s): EMEQZBD0026 EMEQ38-
CE marking: declaration that the product meets EU standards for health, safety, and environmental protection. The CE marking indicates that the product may be sold freely in any part of the European Economic Area, regardless of its country of origin.
Z1212012001 - Visual functional assessment equipment
European Medical Device Nomenclature (EMDN) is the nomenclature of use by manufacturers when registering their medical devices in the EUDAMED database. EMDN is characterised by its alphanumeric structure that is established in a seven-level hierarchical tree.
I
In Europe, medical material that fulfills the definition of a medical device according to the MDR (Medical Device Regulation) is classified into 4 classes
OC subscriptions: included in supply or field order tools (e.g. UniField)
SC subscriptions: included in supply or field tools
OC validations: approved for procurement and use by an OC for international or local orders specifying context and activity in Medical Standard Lists (MSL)

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COLOUR-DISCRIMINATION EYE CHART

Definition

An ophthalmic chart with coloured numbers or shapes printed on coloured backgrounds used in testing colour vision.

The Ishihara test is a colour perception test for red-green colour deficiencies.

Synonym

Ishihara test

Specifications

Ishihara plates (EMEQISHI38-)

The test consists of a number of coloured plates, called Ishihara plates, each of which contains a circle of dots appearing randomised in colour and size. Within the pattern are dots which form a number or shape clearly visible to those with normal colour vision, and invisible, or difficult to see, to those with a red-green colour vision defect. Other plates are intentionally designed to reveal numbers only to those with a red/green colour vision deficiency, and be invisible to those with normal red/green colour vision.

  • 38 cardboard plates: full test
  • circle of dots randomised in colour
  • numbers of different colour in the middle of the circles

Pseudo-isochromatic colour vision test (EMEQISHIP14)

The paediatric pseudo-isochromatic colour vision test contains objects (circle, star, square) and pictures (boat, balloon, dog) to make colour vision testing fun, quick and easy for all age groups - especially 3 to 6 year old pre-school children.

  • 14 cardboard plates
  • square of dots randomised in colour
  • simple objects (circle, star, square) and pictures (boat, balloon, dog)

Instructions for use

Being a printed plate, the accuracy of the test depends on using the proper lighting to illuminate the page.

Proper testing technique is to give only three seconds per plate for an answer, and not allow coaching, touching or tracing of the numbers by the person tested. The test is best given in random sequence, if possible, to reduce the effectiveness of prior memorization of the answers.

Precautions for Use

It is important that the book of test plates should be kept closed, except during use, because undue exposure to sunlight causes fading of the colour plates.

MSF requirements

For detection of colour vision anomalies in patients with MDR-TB treatment using linezolid or ethambutol.

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