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Can you see all the dots at once?

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Can you see all the dots at once?

How many dots are there?

I can’t see them all at once, can you?
There are 12.

See the science here:
Ninio, J. and Stevens, K. A. (2000) Variations on the Hermann grid: an extinction illusion. Perception, 29, 1209-1217.

Dr. Yan L. Liang, OD
Markham  Optometrist

Contact Warden Optometry to book your appointment today.

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