My husband really is from Mars

My husband is really out there during some of the conversations we have.  There are many conversations where I just scratch my head and wonder how he has made it this far in life  lol.  Take the latest one for example.  We got a letter from A.J.'s school stating they gave him two eye tests recently and as a result they suggested he get examined by an Optometrist.   I didn't really expect A.J. to need glasses, but if he did it really wouldn't surprise me.  My whole family and most of dh's family wear glasses.  I have been prescribed glasses since I was 9yrs old.  So anyway, went to the exam and guess what?  Yep, he needs glasses.

My dh doesn't wear glasses and just couldn't figure out why his child would even need them.  In fact (and this is where he starts to totally loses his mind) he actually says to me that he wants a second opinion because, aren't Optometrists like Psychiatrists and what they do isn't really based on any science and that they are somehow not real doctors?  WTF??  HUH???  Did he really just say that?  Then as his mind totally melts into sludge he says that he wouldn't trust anyone who took the word of a 6yr old on what letters/numbers they could, or could not see from across the room.  At this point how do I even respond?  I was speechless and would've slapped some sense into him, had I thought it would help.