Vision and Visual Acuity

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4 Terms

1
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What is preferential looking?

Ways of estimating vision in infants and others who are non-verbal/unable to complete a letter/picture matching test

2
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What are methods of preferential looking?

Teller acuity cards and Keller acuity cards

3
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What are acuity cards?

Grey cards with a central peephole- one side of each card has black and white grating

4
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What are Cardiff acuity cards?

Measures visual acuity in toddlers but can be used with older children and adults with intellectual impairments