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Noncontact slit lamp examination of the ocular fundus has been classically done using high power convex lenses like +90D,+78D,and +60D.A real and inverted image of the fundus is formed in between the high power convex lens and the slit lamp.The +20D lens is commonly used for binocular indirect ophthalmoscopy.The authors use this +20D lens for slit lamp biomicroscopy examination of the fundus.