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In the fields of optometry and ophthalmology, the Hirschberg test, also Hirschberg corneal reflex test, is a screening test that can be used to assess whether a person has strabismus (ocular misalignment). A photographic version of the Hirschberg test is used to quantify strabismus. [1]
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.
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 significance of the 6/6 standard can best be thought of as the lower limit of normal, or as a screening cutoff. When used as a screening test, subjects that reach this level need no further investigation, even though the average visual acuity with a healthy visual system is typically better.
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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