mediumaevum:

The eye according to Hunain ibn Ishaq.

This manuscript, dated circa 1200CE, is kept at the Cairo National Library.

Hunayn ibn Ishaq enriched the field of ophthalmology. His developments in the study of the human eye can be traced through his innovative book, “Ten Treatises on Ophthalmology.” This textbook is the first known systematic treatment of this field and was most likely used in medical schools at the time. Throughout the book, Hunayn explains the eye and its anatomy in minute detail; its diseases, their symptoms, their treatments. He discusses the nature of cysts and tumors, and the swelling they cause. He discusses how to treat various corneal ulcers through surgery, and the therapy involved in repairing cataracts. “Ten Treatises on Ophthalmology” demonstrates the skills Hunayn ibn Ishaq had not just as a translator and a physician, but also as a surgeon.

( “Bulletin of the Indian Institute of History of Medicine 26 (1996): 69–74.)

I love the way this writing looks. Very cool.