| 21. | A visual acuity of 20 / 200 is considered legally blind.
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| 22. | Any relatively sudden decrease in visual acuity is always a cause for concern.
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| 23. | A Snellen chart or other eye chart may initially reveal reduced visual acuity.
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| 24. | :The human eye has a visual acuity of about one arc-minute.
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| 25. | I also believe that eye charts are crapy way to test visual acuity.
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| 26. | Also, how much does one's visual acuity affect their limiting magnitude?
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| 27. | Visual acuity is dramatically worse with CRION than other forms of optic neuritis.
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| 28. | At night or dusk, visual acuity is sacrificed for light sensitivity.
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| 29. | Notes : Visual acuity must be correctable to 20 / 20.
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| 30. | Visual acuity is a parameter that is frequently used to assess overall vision.
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