Direct Ophthalmoscopy.pptx the best pppt

Its is a Direct opthalmoscopy by dr jamshed

1. Direct Ophthalmoscopy Prof. Dr. Jamshed Ahmed

2. What? The direct ophthalmoscope allows you to look into the back of the eye to look at the health of the retina, optic nerve, vasculature and vitreous humor. This exam produces an upright image of approximately 15 times magnification.

3. Fundus

4. The instrument

5. Light Setting Large/Medium/Small/Half The Large aperture is used for a dilated pupil after administering mydriatic drops. The medium aperture is the standard for a non-dilated pupil in a dark room. The small aperture is for a constricted pupil in a well-lit room. Red free Used to look closely at the vasculature. Blue Used to look for corneal abrasions or ulcers with fluorescein dye. Slit Used to look at contour abnormalities of the cornea, lens or retina. Grid Used to approximate the relative distance between retinal lesions.