Keeler Pocket Ophthalmoscope 2.8V • Full diagostic capability in a pocket sized instrument • +20 to -20D lens range for clear and effortless examination of all ocular structures. 6 apertures: • Wide angle - for the best possible general diagnosis through a dilated pupil • Intermediate - particularly useful in paediatric examination, permits easier access through an undilated pupil • Macular - reduces excessive papillary and patient discomfort • Slit - to determine retinal elevations, depressions and anterior chamber depth • Fixation cross - for assessment of the degree and direction of eccentric fixation. 1 filter: • Red free - used to examine blood vessels in fine detail. Contents: • Pocket ophthalmoscope • Handle • Spare bulb • Instructions CD • Protective Case.