150 years since Babbage's ophthalmoscope.
The discovery of the ophthalmoscope in 1851 is rightly attributed to Hermann von Helmholtz. However, 4 years earlier, in 1847, Charles Babbage nearly invented the instrument that was to revolutionize ophthalmological examination so dramatically.
Keeler
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Keeler Ltd., Windsor, England.
D004739:England; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D009885:Ophthalmology / Q000266:history*; D019721:Ophthalmoscopes / Q000266:history*