Monocular indirect funduscopy combines the benefits of the enlarged area of view with the straight real imaging. That is combined with the indirect ophthalmoscopy with the direct ophthalmoscopy. By redirecting and collecting peripheral eyeball-reflected light rays that cannot be gained with the help of the direct ophthalmoscope enlarges the observer's field area of view about four to five times. The internal lens system then it reinverts the firstly inverted picture to a real vertical image and then it magnified. This picture is focusable utilizing the eyepiece lever or focusing lever.
• Best performed on an enlarged pupil.
• To study the right eye, remove any spectacle correction of the patient, stand to the right side of the patient, and ask him or her to keep straight in front and position with the left eye; the viewer has to keep on any refractive correction.
• Now you have to dim the room illumination and turn up the device rheostat.
• Push the iris diaphragm lever completely to the left side in order to greatly raise the size of the aperture.
• Now center the red dot on the filter dial in order to place the open aperture for usual viewing
• Viewers head next to the forehead rest and line up eye through the device with the right eye of the patient, by holding the handle with your right hand
• Whilst positioned many inches before the patient and see via the pupil onto the eyeball or fundus with the help of the thumb and eyepiece lever.
• Come near to the patient and stop at ten to twelve centimeter from the eye.
• Adjust the iris diaphragm and focusing in order to generate a clear greater illuminated fundus view.
• Start going closer to the patient until the observer's knuckle slighly touches the patient's cheek, as the working distance reduces, fundus magnification would increase.
• Angle the light vaguely nasally in order light up the optic disc.
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