Binocular Indirect Ophthalmoscope Image. Not only must one think in terms of the inverted fundus image but also one must learn to move opposite to the direction which seems natural and which has been learned in direct ophthalmoscopy. The ophthalmoscope is critical in the examination of the retina and the vitreous humor the gelatinous liquid between the retina and the lens.
Video aligned optical system ensures precise positioning of components for easy. With indirect ophthalmoscopy the fundus is illuminated by light passing through a highly powered positive lens. It forms an inverted aerial image of the retina.
Use the 20 d lens to evaluate macular and peripheral pathology.
Use the 20 d lens to evaluate macular and peripheral pathology. Binocular indirect ophthalmoscopes bios enable evaluation of the posterior segment of the eye. The most commonly used binocular indirect ophthalmoscopy bio lens the 20 d double aspheric lens has magnification up to 3 13 and a 60 dynamic field of view. In direct ophthalmoscopy a virtual and erect image of the fundus is seen.
