Alhacen's Theory of Visual Perception : First Three Books of Alhacen's De Aspectibus
The man known as Second Ptolemy would utilize a copy of his namesakes writings and a little help from a physician named Galen to create the science of optics. Galen, for the record, was a student of Aristotle, though not directly, who spend a good deal of time understanding the human eye.
Personally, I would liken Alhacen more to a Second Aristotle. He was a master teacher and analyst.
Alhacen’s work would be published in the Book of Optics. This, as often the case, was translated into Latin in the 12th Century as Perspectiva. This work would be the inspiration for dozens of later scientists and inventors.
This publication by Mark Smith examines some of those original writings and models. It is a great opportunity to understand the history of this great science.