caa a22 4500 465794378 CHVBK 20180323112033.0 cr unu---uuuuu 170327e19900201xx s 000 0 eng 10.1007/BF00165666 doi (NATIONALLICENCE)springer-10.1007/BF00165666 Antonie Cramer's explanation of accommodation [Elektronische Daten] [I. Den Tonkelaar, H. Henkes, G. Van Leersum] In the middle of the last century the question of the origin of accommodation was still unsolved. At the suggestion of Donders, Cramer used in 1851 a microscope to demonstrate that accommodation has to be ascribed to an increase in the curvature of the lens. Donders himself had several instruments made for the same purpose. These are still present in the collection of the Royal Netherlands Ophthalmic Hospital. Kluwer Academic Publishers, 1990 Den Tonkelaar I. F.C. Donders Institute of Ophthalmology, Utrecht, The Netherlands aut Henkes H. F.C. Donders Institute of Ophthalmology, Utrecht, The Netherlands aut Van Leersum G. F.C. Donders Institute of Ophthalmology, Utrecht, The Netherlands aut Documenta Ophthalmologica Kluwer Academic Publishers 74/1-2(1990-02-01), 87-93 0012-4486 74:1-2<87 1990 74 10633 https://doi.org/10.1007/BF00165666 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00165666 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Den Tonkelaar I. F.C. Donders Institute of Ophthalmology, Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Henkes H. F.C. Donders Institute of Ophthalmology, Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Van Leersum G. F.C. Donders Institute of Ophthalmology, Utrecht, The Netherlands aut NATIONALLICENCE 773 0- Documenta Ophthalmologica Kluwer Academic Publishers 74/1-2(1990-02-01), 87-93 0012-4486 74:1-2<87 1990 74 10633 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer