Do you ever hear a term over and over and wonder to yourself….What the heck does that mean? It happens to me all the time. As crazy as it sounds, when I hear a term I’m unfamiliar with, my mind becomes obsessed and I go into research mode: Defining what the terms IS (generally straight […]
20/20 does not refer to the calendar year, although I think we are all ready to put 2020 (the calendar year) in our hindsight. 20/20 refers to a measure of normal visual acuity, as measured by the Snellen fraction chart developed by ophthalmologist Herman Snellen in 1862. It’s a measure of the sharpness and clarity […]
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