The visual acuity result of 1.5 is obtained by using an international standard visual acuity chart, and the corresponding value to the logarithmic visual acuity chart result should be 5.2.
During the visual acuity test, the examinee is 5 meters away from the logarithmic visual acuity chart, covers one eye, looks at the chart flatly, and points out the E’s in the different directions of the openings as required, and determines the degree of visual acuity of the examinee on the basis of the corresponding E’s marking.
The visual acuity of 1.5 on the International Standard Vision Scale (ISVS) is equivalent to 5.2 on the Logarithmic Visual Acuity Scale (LVAS). These are the results obtained from two different visual acuity scales, which have the same significance in determining visual acuity, but with numerical differences.
Generally speaking, a visual acuity of 1.5 is normal, and you should pay attention to reasonable eye use in daily life and avoid over-exertion of the eyes.