Always on a lookout

Off late I was getting a headache every evening. After procrastinating for long I finally decided to visit the doc. With every lens the doc slipped into the frame for checking I confused him more and more with what my actual reading was.
I got so fed up with it that I started mugging up the letters they would ask me to look from at a distance and read. The doc would call his assistant and shout at her as to how every time she is giving a different reading to the doc. So I finally decided to cooperate and the doc told me I have cylindrical power.
I got my glasses in less than a week. But hated wearing them and had already decided to take contact lens. The doc said I would have to go for rigid and not soft lens due to the kind of power I have.
He said I have to come for regular sittings for trials with the lens. There I met this lady who taught me the tricks of the trade.
We got talking every evening. I had to leave office early every day. During the trials my phone would surely ring at least once. One day she asked me so where do you work?
The moment I said for an ad agency she enquired if there’s a vacancy for her. I was quite surprised thinking why would an eye specialist want to shift to an ad agency? Her expressions said it all.
I wondered the frustration was so high that an eye specialist was ready to move onto an ad agency or is it the love for the industry?