Erich Seidel
Erich Seidel (1882–1946), German ophthalmologist. Described Seidel scotoma (1914): sickle/arcuate blind-spot extension in early glaucoma.
Tag Fluorescein
Manuel Straub
Manuel Straub (1858–1916), Dutch ophthalmologist. Early human fluorescein corneal staining (1888) and landmark lens-induced uveitis work
Theodore Obrig
Theodore Ernst Obrig (1894–1967) pioneered cobalt-blue and fluorescein viewing (1938), transforming contact lens fitting and corneal surface assessment.
Paul Ehrlich
Paul Ehrlich (1854–1915), German physician. Pioneer of chemotherapy; fluorescein eye studies, immunology, and Salvarsan for syphilis.
Ernst Pflüger
Ernst Pflüger (1846–1903), Swiss ophthalmologist. Early fluorescein cornea experiments (1882) and influential work on refraction, optotypes and colour vision testing