an optometrist's phoroptor

and body clinic close coloured conduct conjunctivitis doctor equipment exam examination examinations examining eye eyes eyesight focus glasses glaucoma having head health healthcare human instrument lens look looking man manual medical medicine metal occupation ophthalmologist ophthalmology optical optician opticians optometrist optometrists optometry orthoptist part patient phoropter phoroptor piece receiving refraction science sight silver surgery test used using vision with woman young