Synchronic and Diachronic Factors Influencing Medieval Arabic Medical Practice: A Study of Ophthalmological Fragments Found in the Cairo Genizah.

This article addresses the practical aspect of medieval Arabic medicine by examining ophthalmological fragments of the Cairo Genizah, written between the tenth and thirteenth centuries. This article deals with two issues: (1) the logic behind the actual preparation of compound medicines and (2) the logic behind the entire treatment process. The first issue is examined by investigating recipes of eye medicines for leucoma (bayāḍ) recorded in genizah notebooks.