The Conference on Subretinal Space, held between October 14 and 19, 1979, was organized to bring into the forefront some of the developments in basic and c1il')ical sciences in this field. Indeed the interaction between choroid, pigment epithelium and sensory retina in terms of the physical adherence between the tissues, transport of materials and changes produced by the growth of new vessels, fluid penetration, light damage, etc. are some of the outstanding ophthalmic problems of today. We hope that the proceedings of this Conference may be of some help in providing better understanding both of the subretinal space and of its boun daries. HANAN ZAUBERMAN, M.D. CONTENTS Preface, H. Zauberman v Basic problems related to sub retinal space The retinal circulation: past, present and future. The Fifth Abraham Albert Ticho Lecture, Paul Henkind . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pathology of the sub-retinal space, Mark O. M. Tso ....... . 11 Proteins of the bovine interphotoreceptor matrix, Alice J. Adler & Katherine M. Severin 25 Pigment epithelium, retina junction and photoreceptor distribution in man and in the horse. Histological, ultrastructural and electrophy siologicai study, J. Franr;ois, V. Victoria-Troncoso, A. De Rouck, L. Wouters & A."