Bernhard Kayser
Encyclopedia
Bernhard Kayser was a German ophthalmologist.

Kayser-Fleischer ring
Kayser-Fleischer ring
Kayser-Fleischer rings are dark rings that appear to encircle the iris of the eye. They are due to copper deposition as a result of particular liver diseases. They are named after Dr Bernhard Kayser and Dr Bruno Fleischer, the German doctors who first described them in 1902 and 1903...

s are named after him.
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