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“Wool over eyes”: Holmgren’s Skeins and Thomson’s Stick
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Journal Article
“Wool over eyes”: Holmgren’s Skeins and Thomson’s Stick
2009
Overview
Following a major railway accident in Sweden in 1877 and a suspicion that it was caused by colour blindness, Frithiof Holmgren (1831-1897), a Swedish physiologist of Uppsala, devised his colour wool test which was to become the standard method of testing for colour blindness. The front cover illustration shows a derivation of Holmgren's test devised in 1880 by Dr William Thomson (1833-1907) of Jefferson Medical College and consultant at Wills Eye Hospital, Philadelphia.
Publisher
BMJ Publishing Group Ltd,BMJ Publishing Group LTD
