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Ohio State School for the Blind (OSSB or OSB) is a school located in Columbus, Ohio, United States.It is run by the Ohio Department of Education for blind and visually impaired students across Ohio.
The Jaeger chart is an eye chart used in testing near visual acuity.It is a card on which paragraphs of text are printed, with the text sizes increasing from 0.37 mm to 2.5 mm. [1] This card is to be held by a patient at a fixed distance from the eye dependent on the J size being read.
Near visual acuity or near vision is a measure of how clearly a person can see nearby small objects or letters.Visual acuity in general usually refers clarity of distance vision, and is measured using eye charts like Snellen chart, LogMAR chart etc. Near vision is usually measured and recorded using a printed hand-held card containing different sized paragraphs, words, letters or symbols.
An example of the Landolt C eye chart (also known as the Japanese eye chart.). Numerous types of eye charts exist and are used in various situations. For example, the Snellen chart is designed for use at 6 meters or 20 feet, and is thus appropriate for testing distance vision, while the ETDRS chart is designed for use at 4 meters. [16]
Covid rapid test - In April 2020, Battelle Memorial Institute partnered with Ohio State University to distribute rapid tests for Covid-19, with results in less than 5 hours. [ 14 ] [ 15 ] N95 respirator decontamination - On March 29, 2020, Battelle announced that it had received an Emergency Use Authorization to deploy a system to decontaminate ...
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