Physiological optics in 2008: standing on Helmholtz's shoulders.
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D005197:Famous Persons; D049672:History, 19th Century; D006801:Humans; D009799:Ocular Physiological Phenomena; D009887:Ophthalmoscopy / Q000266:history*; D055095:Optics and Photonics / Q000266:history*; D014785:Vision, Ocular / Q000502:physiology