what is the correct procedure for performing an opthalmoscopic examination on a client's right retina? instruct the client to look at examiner's nose and not move his/her eyes during the exam. set ophthalmoscope on the plus 2 to 3 lens and hold it in front of the examiner's right eye. from a distance of 12 to 15 inches and slightly to the side, shine the light into the client's pupil. for optimum visualization, keep the ophthalmoscope at least 3 inches from the client's eye.