One of the companies I work with was looking to add glasses for the intricate work that they do in building microprocessors. I did some brainstorming and I would suspect it is in their best interest to provide their employees with a way to ensure that the parts they are adding to the boards are correctly done the first time. This will also reduce residual concerns or “throwbacks”. In this instance, they were told to get a magnifier for each employee. This will ensure QA.