young patient under going eye test through phoropter

20s adjusting adult analyzing appointment assisting boy care caucasian checking checkup cheerful child childhood clinic closeup coat consultation diagnostic doctor equipment examination examine examining expertise eye eyesight female happy indoors job laboratory lens machine male measurement medical messbrille microscope modern oculist ophthalmologist ophthalmology optician optometric optometrist patient people phoropter profession research room sitting smiling specialist technician technology testing treatment two vision visit woman young