Visual acuity and Visual sense

Visual acuity noun - Sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart).

Visual sense and visual acuity are semantically related. In some cases you can use "Visual sense" instead a noun phrase "Visual acuity".

Visual sense noun - The ability to see; the visual faculty.

Visual acuity and visual sense are semantically related. Sometimes you can replace phrase "Visual acuity" with "Visual sense", this phrases are similar.