A visual acuity of 4.6 on a logarithmic scale is equivalent to a visual acuity of 0.4 on a decimal scale.
Visual acuity is an indicator of visual acuity, that is, the ability of the eyes to distinguish details in a scene, and is a very important item in an eye examination. Currently, there are two main ways of measuring visual acuity: logarithmic and decimal.
The results of the logarithmic method and the decimal method can be converted to each other. A logarithmic visual acuity of 4.6 is equivalent to a decimal visual acuity of 0.4 after conversion.
Under normal circumstances, the naked-eye visual acuity should reach 5.0 in logarithmic scale or 1.0 in decimal scale. The current visual acuity is lower than normal, and the cause should be identified and treated accordingly.
It is recommended that the patient should go to the ophthalmology department of the hospital in time, and after the doctor has made a clear diagnosis, he or she will be guided to carry out individualized treatment.