Reduced visual acuity Mildly reduced visual acuity 2018-09-01T15:45:56Z Mild reduction in visual acuity Mild vision loss Mild reduction of the ability to see. On the 6m visual acuity scale, mild reduction is defined as less than 6/12 but at least 6/18. On the 20ft visual acuity scale, mild reduction is defined as less than 20/40 but at least 20/70. On the decimal visual acuity scale, mild reduction is defined as less than 0.5 but at least 0.3. A visual acuity of 6/6 signifies that a person can see symbols such as those on a Snellen chart from six meters the same as a person with normal eyesight. A visual acuity of 6/12 signifies that the person can see symbols at 6 meters the same as a person with normal eyesight could at 12 meters. Mild visual loss