Inside the fundus camera.
D005060:Europe; D005451:Fluorescein Angiography / Q000295:instrumentation / Q000379:methods; D005654:Fundus Oculi; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008029:Lighting / Q000379:methods; D009885:Ophthalmology / Q000266:history / Q000295:instrumentation*; D019721:Ophthalmoscopes; D010781:Photography / Q000295:instrumentation / Q000379:methods; D014481:United States