Which Eye Profession do You "Opt" for?

       I went to see the doctor for new eye-glasses.  Or did I?  Is the optometrist a doctor?  An optometrist is not an M.D., Medical Doctor, but an O.D., Doctor of Optometry.

       Only the ophthalmologist is an M.D., specializing in the structure and diseases of the eye and who may perform surgery.  The optician sees to the proper making of the eye glasses, reading and transferring the optometrist's measurements into the actual glasses.

       All three professions opt for the "op" beginning, which goes back to Greek for "eye."