Riester e-scope LED Ophthalmoscope - Black

e-scope® LED Ophthalmoscope LED illumination gives 5500K pure white light for true tissue colour. Low power LED technology gives a practically unlimited service life. Optimised high performance optics with aspherical condenser lens to reduce aberrations. 6 apertures: Small - allows quick entry into small, undilated pupils. Large - general examination of the eye through dilated pupil. Fixation Star - graduated cross-hairs for measuring eccentric fixation or locating lesions. Semi Circle - for a combination of depth perception and field of view. Red-Free filter - filters out red light for easy identification of veins, arteries and nerve fibers. Cobalt blue - used with flourescein dye to view small lesions, abrasions and foreign objects on the cornea. 18 focusing lenses with a range of -20 to +20 diopters, adjustable via easy-to-reach maywheel. Soft brow-rest suitable for use with spectacles. Handle powered by 2 regular AA alkaline batteries (not included) Aperture Selection Disc Switch easily between 6 apertures. Six Apertures A wide range of practical apertures to select from. Daisywheel Focus Easy access on either side of the head to adjust the diopters.