visual check; visual inspection
Used in technical, manufacturing, and quality-control contexts for checking something by looking at it, as opposed to automated or instrumental inspection. Often interchangeable with 目視検査.
See also: 目視検査
We check for scratches on the product by visual inspection.
There may be oversights with only a visual check.
Compound of 目視 (visual observation) and チェック (check, from English).