Patent ID: 8132915
Filing Date: 2012-03-13
Classification: A61B

Abstract:
1. A binocular indirect ophthalmoscope comprising illumination optics including an adjustment device for selectively altering the size of an illumination beam and a beam directing device for directing the illumination beam of selected size to an eye to be viewed, the ophthalmoscope further comprising viewing optics including left hand and right hand viewing eyepieces, an optical splitter for directing light travelling along left and right viewing paths respectively to the two eyepieces, wherein the beam directing device and optical splitter are moveable with respect to a frame of the ophthalmoscope respectively to alter the position of the illumination beam and the lateral separation of the viewing paths, characterised in that the adjustment device for selectively altering the size of the illumination beam, the optical splitter and the beam directing device are linked such that adjustment of the size of the illumination beam results in a corresponding adjustment in the beam directing device and the position of the optical splitter.