Transcription of Visual Acuity
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The Children's Mercy Hospital, 2014. 03/14 Megan Sheeley, CO Visual Acuity The Children's Mercy Hospital, 2014. 03/14 2 What you will learn today History Parameters Optotypes Checking Acuity Pre-verbal Acuity Techniques Pitfalls Pearls The Children's Mercy Hospital, 2014. 03/14 3 Forefathers Herman Snellen Sr (1834-1908) Francisco Cornelius Donders (1818-1889) The Children's Mercy Hospital, 2014. 03/14 4 A little bit of Snellen devises a standardized measurement tool to check vision 1862 1867 Monoyer introduces the decimal notation for Acuity measurements 1888 Landolt proposed the broken ring symbol (Landolt Cs) 1959 Louise Sloan designs a set on non-serif letters for the Acuity chart 1976 Bailey and Lovie design a new Acuity chart with proportional spacing a
5 © The Children's Mercy Hospital, 2014. 03/14 A little more history… • Donder was the brains behind creating the visual acuity measurement • …
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