Baton Rouge Find Baton Rouge Louisiana treasurer, tax collector, tax assessor, and property assessor offices. Treasurers and tax collectors provide information on property searches, tax bills, property liens, tax assessed values, and deductions.
The standard definition of normal visual acuity is the ability to resolve a spatial pattern separated by a visual angle of one minute of arc. Consider a circle which contains 360 degrees. One degree contains 60 minutes. Therefore, a visual angle of one minute of arc is 1/60 of a degree.f you require glasses because your optometrist says you have 20/60 vision, that means you are able to discriminate characters on an eye chart at 20 feet that a person with normal acuity can see at a distance of 60 feet. 6/6 means the same thing only in meters.
A visual acuity chart is used to test distance visual acuity. It uses capital letters of different sizes to test vision in literate adults. The test is conducted at 6 metres (20 feet in USA).The test result is given as a fraction that indicates the distance in metres at which that row of the chart can be read by a normal eye.he bottom number represents the size of the letter seen. The larger the bottom number the larger the letter on the chart (E.g. 6/48 indicates a bigger letter than 6/12). Normal visual acuity is recorded as 6/6 (20/20 in USA).