Think of the last time you had your eyes examined. At some point, your eye doctor (or optometrist) probably asked you to read some letters on an eye chart. If you wear glasses or contacts, you got to look through a lot of different lenses. This typically involves you comparing two different lenses against each other. He or she asks you which of the two is clearer.

For this process to work, you get asked a lot of questions. And you give a lot of feedback. Without your feedback there is no way your eye doctor can give you a complete description of your eye health. In this business, it’s understood there will be a lot of back and forth communication between you.