Leonardo da Vinci did not invent contact lenses.
D003261:Contact Lenses; D005060:Europe; D049668:History, 15th Century; D049669:History, 16th Century; D049672:History, 19th Century; D006801:Humans; D007558:Italy; D009885:Ophthalmology / Q000266:history*; D014785:Vision, Ocular