Vision Testing (2) Flashcards

1
Q

Acuity

A

Aim to identify progressively smaller changes

- letters at distance

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2
Q

Canada Minimum Eyesight Requirements

A
  • Read letters less than 1.6mm high at a distance of 30cm or greater
  • Colour vision sufficient to distinguish colours or shades used in NDT methods
  • 20/30 or better in at least one eye
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3
Q

Jaeger

A

Identifying letters in varying sizes from an arms length away

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4
Q

Snellen

A

A score of

20/30 means that the subject can see at 20 feet what most people can see at 30 feet

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