Control of Visual Receptor Cyclic GMP and Visual Excitation.- Biochemical Events Related to Circadian Photoreceptor Shedding.- Circadian Rhythms in Retinal Function.- Cone Pathways in the Mammalian Retina.- Structure, Development and Visual Acuity in the Goldfish Retina.- Localization of Neuropeptides in the Adult and Developing Retina.- Evoked Potential Estimates of Infant Visual Development.- Preferential Looking Measures of Visual Acuity in Infants and Young Children.- Discussion of the Papers by Drs. Sokol and Dobson.
The Seventh Symposium on Ocular and Visual Development was held in October, 1982. The aim of the meeting was to develop a broad perspective on visual acuity. The subject was discussed initially in terms of molecular events of photoreception, and the metabolism of the photoreceptor ele ments. Subsequent papers presented the development and complexity of the neurocircuitry and transmitter systems in the retina that process the visual information prior to transfer to the brain. The meeting concluded with a series of papers on behavioral and physiological methods of mea surement of visual acuity in humans, particularly young children. This volume arose from the papers presented at the meeting. We feel that the juxtaposition of research of broadly differing methodologies will be stim ulating, rather than daunting, and will generate an enhanced understand ing of this complex subject. We are indebted to our colleagues: Dr. M. Mote from Temple University, and Drs. J. Siegfried, P. Dayhaw-Barker, and L. Press from the Pennsylvania College of Optometry for their expertise and assistance in the organization of the meeting; to the speakers for their presentations and contributions to this volume; and to the reviewers of the manuscripts for their helpful comments. This symposium could not have been held without the generous support of the Temple University College of Arts and Sciences and the Pennsyl vania College of Optometry. We also thank Merck, Sharp and Dohme, Inc. for their donation.
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