Vascular mesenchyme now grows into the optic fissure and takes with it the hyaloid artery. The inferior edge of the optic cup is deficient, and this notch is continuous with a groove on the inferior aspect of the optic stalk called the optic or choroidal fissure ( Fig. Meanwhile, the optic vesicle becomes invaginated to form the double-layered optic cup. The lens placode invaginates and sinks below the surface ectoderm to become the lens vesicle. At the same time, a small area of surface ectoderm overlying the optic vesicle thickens to form the lens placode. The diverticulum grows out laterally toward the side of the head, and the end becomes slightly dilated to form the optic vesicle, while the proximal portion becomes constricted to form the optic stalk ( Fig.
The rudimentary eyeball develops as an ectodermal diverticulum from the lateral aspect of the forebrain ( Fig. Illustrations are kept simple and overview drawings of the distribution of the cranial and autonomic nerves have been included. Clinical problems requiring anatomic knowledge for their solution are presented at the end of each chapter. The practical application of anatomic facts to ophthalmology has been emphasised throughout this book in the form of Clinical Notes in each chapter. The nerve and blood supply to the orbit, the autonomic innervation of the orbital structures, the visual pathway, and associated visual reflexes should receive great emphasis. The specialist's knowledge should include not only gross anatomic features and their development, but also the microscopic anatomy of the eyeball and the ocular appendages.
It is recognised that this medical speciality requires a detailed knowledge of the eyeball and the surrounding structures. The objective of the book is to provide the reader with the basic knowledge of anatomy necessary to practice ophthalmology. Clinical Anatomy of the Eye has proved to be a very popular textbook for ophthalmologists and optometrists in training all over the world.
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