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Speed acuity test (SA)

NT Nouk Tanke
AB Annemiek D. Barsingerhorn
FB F. Nienke Boonstra
JG Jeroen Goossens
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The speed–acuity test21 was administered binocularly at 5 m. Each trial consisted of a high-contrast black Landolt-C presented at the center of the computer screen against a white background. Children had to indicate, as quickly and accurately as possible, on which side, right or left, the opening of the C was located by pressing the corresponding mouse button. The stimulus was presented until the child responded. Task difficulty was manipulated by presenting nine optotype sizes (ranging from 0.43 to 1.09 logMAR), each presented 10 times in pseudo random order.

Here, we only included the reaction times to the 0.68 LogMAR stimulus, which was similar to the size of the numbers of the DEM (0.71 LogMAR).

Copyright and License information: The Author(s) ©2021
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