Sheridan-Gardner test

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The Sheridan-Gardner test is one in which letter matching is used to assess visual acuity in a child below reading age or in an illiterate patient.

The child and examiner are spaced 6 metres apart. The child is provided with a seven letter card, the examiner with a set of single letter cards corresponding in size to Snellen letters. The child is then asked to point on their card to the letter shown to them by the examiner. For children above 3 years of age, the examiner may use cards containing lines of letters.

Last reviewed 01/2018