HOLMGREN, Alarik Frithiof (1831 – 1897)

1865 CE

#1511.1

Method att objectivera effecten av ljusintryck pa retina.

Discovery of the electroretinogram, the beginning of the use of electrophysiological methods for studying visual systems.

1870 CE–1871 CE

#1514

Om retinaströmmen.

First demonstration of retinal action currents.

1874 CE

#5911

Om den medfödda, färgblindhetens diagnostic och teori.

Holmgren introduced the wool-skein test for the diagnosis of color-blindness.

1876 CE–1877 CE

#5916

Om färgblindheten i dess förhallande till jernvägstrafiken och sjöväsendet.

A serious railway accident in Sweden in 1875 was believed by Holmgren to be due to color-blindness, and resulted in the above important paper dealing with the condition and its relation to railway and maritime traffic…