Use "optician" in a sentence

1. The optician looked doubtful, but slowly nodded his head

2. As an optician, I would wager that you might provide me with a pair with…how is it said?

3. When finally seen by a state optician, Mike not only received a new prescription and glasses, but he was also diagnosed with glaucoma which was not immediately treated

4. The optician showed him a card with the letters: C Z W

5. “Can you read this?” the optician asked

6. There are indications that she has had recourse to an optician at least twice during the last few months