Couching a cataract.
Couching a cataract, which involved using a needle to pierce the eye and push the cataract back and down, was a popular technique until about 1850.
D002387:Cataract Extraction / Q000266:history*; D005602:France; D049669:History, 16th Century; D049672:History, 19th Century; D049690:History, Ancient; D049691:History, Medieval; D006801:Humans; D007194:India; D009339:Needles