:hammer: This next tip is to try and get you to think what you are doing, which really involves asking the patient a lot about what they are going to be using the glasses for.
................As an example years ago in Gainesville, Georgia i had a lady buy a pair of glasses, normal everyday type rx. When i asked her what she did, she told me she sorted colors at a carpet factory. I took that to mean red, yellow, green , blue, etc.
................A couple weeks later she came back madder then hell, claiming i had caused her to pick the wrong color, because of the rose 2 tint she requested.
.................Upon further questioning about how this could have happened, i then found out she sorted 60 shades of green, and this time picked the wrong shade, causing the company to manufacture a run of carpet the wrong color.
................ It was from that experience i learned to ask, and ask and ask, you can never learn too much.