Abu’l-Qasim al-Zahrawi (known in the West as Albucasis) was a surgeon in 11th-century Andalucia (present-day Spain). He composed this treatise, which illustrates over 200 surgical tools he had devised, and explains how to use them. Shown here are tools, including scissors and scalpel, used for treating problems of the eyelids, such as growths and inverted eyelashes.