Karl Ernst Theodor Schweigger

Karl Ernst Theodor Schweigger (28 October 1830 – 24 August 1905) was a German ophthalmologist who was a native of Halle an der Saale.

He was the son of scientist Johann Salomo Christoph Schweigger (1779–1857), inventor of an early galvanometer.

In Würzburg he learned microscopic pathology and anatomy of the eye, thus developing an interest in ophthalmology.

Later he moved to Berlin, where he spent six years as an assistant to Albrecht von Graefe (1828–1870).

He also published an influential book on ophthalmoscopy titled Vorlesungen über den Gebrauch des Augenspiegels (1864).