MODEL RELEASED. General practice doctor examining the eyes of a patient to check for signs of hypertension, arteriosclerosis, diabetes, etc.. The doctor is peering through an ophthalmoscope, essentially an illuminated microscope used to examine structural details of the retina and other parts of the eye's interior. The instrument directs a fine beam of light into the eye and contains magnifying lenses which allow the doctor to see the spot where the beam falls. Models: Michael Dawson (GP), Donald Easthope.