'Specialist' halogen ophthalmoscope with charger unit, England, 1980
The ophthalmoscope was invented in 1851 by Herman von Helmholtz (1821-94). The instrument is used to view the retina and other internal structures of the eye. Early ophthalmoscopes used reflected sunlight from mirrors to view the inner eye. This more modern example uses a built-in halogen light bulb. It was made by Keeler Instruments Limited. It comes with a charger pack.
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The branch of medicine dealing with the diseases and surgery of the visual pathways (usually the eyes or the brain).
An instrument for viewing the interior of the eye, particularly the retina. Light is shone into the eye via a mirror (usually concave) and then examined with or without the aid of a lens. Invented by by Hermann Von Helmholtz in 1850