Fluorescein angiography is an indispensable tool in ophthalmology. It is founded on the evaluation of phenomena related to the behavior intravenously administered sodium fluorescein in the tissues of the ocular fundus. This book deals with the morphological prerequisites and structural changes on which the individual phenomena are based. It provides the retina specialist, the general ophthalmologist, and the basic scientist with valuable information toward understanding the nature and mechanism of the underlying disorders.