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Wednesday, Jun 20th

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You are here: English BoingBoing ibag Look at this interesting explainer on eye charts and human visual acuity

Look at this interesting explainer on eye charts and human visual acuity

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A Snellen chart (below) may just look like random letters in different sizes, but they were carefully designed to measure visual acuity. This piece on testing the limits of human vision brings it all into focus. (more…)

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