I think yes, he should get vaccinated. Even if this thing is very relative, it is the doctors who fight every day with the sick, trying to treat them, and then work with other patients. So, they are the most exposed people, which the first can get sick. But these elements of Medicine need to be studied much more deeply before exposing yourself. I when I saw the question the first thing I did, I went on https://www.exploremedicalcareers.com/optician/ to inform me, and later I told you my opinion. I give you the same advice.