Diagnostic InstrumentsA Diagnostic set consists of the following items, an Ophthalmoscope, Retinoscope, Retinoscope Fixation Cards, Transilluminator, Two Power Handles and a Carrying Case.
The ophthalmoscope is used to view the back of the eye, commonly called the fundus. This is the only place where arteries, veins, and nerves can be seen without surgically entering the patient. A good view of the fundus will not only give an indication as to the health of the eye, but will also tell you a lot about the patient's overall health. The effects of diabetes, hypertension, and neurological problems can be detected and followed with the ophthalmoscope.
A retinoscope, for optometry and ophthalmology, is an instrument used to objectively determine the refractive power of the eye. It works by allowing the examiner to project a beam of light into the eye and then observe the light as it is reflected back out of the eye. The emerging light will change as it passes through the optical components of the eye, and by judging how much it changes, the examiner can determine the refractive power of the eye.There are basically static retinoscopy and dynamic retinoscopy. Static retinoscopy is used for routine refractions with the patient viewing a distant target. Dynamic retinoscopy is performed when the patient focuses on a near target.