Author: WILDER CRAWFORD CLARKPublisher:
ISBN:
Category : Physiological optics
Languages : en
Pages : 248
Book Description
RELATIONS BETWEEN THE THRESHOLDS FOR SINGLE AND MULTIPLE LIGHT PULSES IN THE HUMAN EYE.
Author: WILDER CRAWFORD CLARKPublisher:
ISBN:
Category : Physiological optics
Languages : en
Pages : 248
Book Description
Single and Multiple Stimulus Static Perimetry in Glaucoma; The Two Phases of Perimetry
Author: E.L. GrevePublisher: Springer Science & Business Media
ISBN: 9401177651
Category : Medical
Languages : en
Pages : 367
Book Description
does not vary more than 1 % over the whole surface. Stimulus: The luminance of the stimuli can be regulated by means of neutral density filters. These filters are neither entirely neutral nor completely uniform, but these variations are not significant for perimetry. The maximum luminance of the stimuli is standardized at 1000 asb (316 2 cd.m-). The standard GP for kinetic perimetry has 3 neutral density filters which reduce the luminance by 0.5, 1.0 and 1.5 log units respectively. The modification of the GP for static perimetry is supplied with an additional series of four neutral density filters, which allow luminance steps of 0.1, 0.2, 0.3 and 0.4 log units. The resulting luminance values, expressed in apostilb, are given in Table I. TABLE I Luminance values of the Goldmann perimeter 4 3 2 steps lux 1430 450 143 45 3,1 asb 1000 315 100 31,5 3,1 2 cd/m 315 100 31,5 10 3,1 ßL ±30 10 3 3,1 L log L asb 3 2,5 2 2 1,5 0,5 2 Background: 31,5 asb. = 10 cd/m • Coefficient of reflection 0,7. 1 2 (1 asb = -cd/m).
Journal of the Optical Society of America
Author: Publisher:
ISBN:
Category : Optical instruments
Languages : en
Pages : 1010
Book Description
High Resolution Imaging in Microscopy and Ophthalmology
Author: Josef F. BillePublisher: Springer
ISBN: 3030166384
Category : Medical
Languages : en
Pages : 411
Book Description
This open access book provides a comprehensive overview of the application of the newest laser and microscope/ophthalmoscope technology in the field of high resolution imaging in microscopy and ophthalmology. Starting by describing High-Resolution 3D Light Microscopy with STED and RESOLFT, the book goes on to cover retinal and anterior segment imaging and image-guided treatment and also discusses the development of adaptive optics in vision science and ophthalmology. Using an interdisciplinary approach, the reader will learn about the latest developments and most up to date technology in the field and how these translate to a medical setting. High Resolution Imaging in Microscopy and Ophthalmology – New Frontiers in Biomedical Optics has been written by leading experts in the field and offers insights on engineering, biology, and medicine, thus being a valuable addition for scientists, engineers, and clinicians with technical and medical interest who would like to understand the equipment, the applications and the medical/biological background. Lastly, this book is dedicated to the memory of Dr. Gerhard Zinser, co-founder of Heidelberg Engineering GmbH, a scientist, a husband, a brother, a colleague, and a friend.
Human Factors Engineering Bibliographic Series
Author: Vision and Visual Perception
Author: Clarence Henry GrahamPublisher: John Wiley & Sons
ISBN:
Category : Medical
Languages : en
Pages : 666
Book Description
Visual Psychophysics
Author: Dorothea JamesonPublisher: Springer Science & Business Media
ISBN: 3642886582
Category : Medical
Languages : en
Pages : 822
Book Description
This volume on Visual Psychophysics documents the current status of research aimed toward understanding the intricacies of the visual mechanism and its laws of operation in intact human perceivers. As can be seen from the list of contributors, the problems of vision engage the interest and experimental ingenuity of investi gators from a variety of disciplines. Thus we find authors affiliated with depart ments of biology, medical and physiological physics, ophthalmology, physics, physiology and anatomy, psychology, laboratories of neurophysiology, medical clinics, schools of optometry, visual and othcr types of research institutes. A continuing interplay between psychophysical studies and physiological work is everywhere evident. As more information about the physiological basis of vision accumulates, and new studies and analyses of receptor photochemistry and the neurophysiology of retina and brain appear, psychophysical studies of the intact organism become more sharply focused, sometimes more complex, and often more specialized. Technological advances have increased the variety and precision of the stimulus controls, and advances in measurement techniques have reopened old problems and stimulated the investigation of new ones. In some cases, new concepts are being drawn in to help further our under standing of the laws by which the visual mechanism operates; in other cases, ideas enunciated long ago have been reevaluated, developed more fully, and reified in terms of converging evidence from both psychophysical experiments and unit recordings from visual cells.
Atti della Fondazione Giorgio Ronchi
Author: Fondazione "Giorgio Ronchi."Publisher:
ISBN:
Category : Optics
Languages : en
Pages : 1112
Book Description
Adler's Physiology of the Eye
Author: Leonard A LevinPublisher: Elsevier Health Sciences
ISBN: 0323057144
Category : Medical
Languages : en
Pages : 810
Book Description
Drs. Paul L. Kaufman, Albert Alm, Leonard A Levin, Siv F. E. Nilsson, James Ver Hoeve, and Samuel Wu present the 11th Edition of the classic text Adler's Physiology of the Eye, updated to enhance your understanding of ocular function. This full-color, user-friendly edition captures the latest molecular, genetic, and biochemical discoveries and offers you unparalleled knowledge and insight into the physiology of the eye and its structures. A new organization by function, rather than anatomy, helps you make a stronger connection between physiological principles and clinical practice; and more than 1,000 great new full-color illustrations help clarify complex concepts. You can also access the complete contents online at www.expertconsult.com. Deepen your grasp of the physiological principles that underlie visual acuity, color vision, ocular circulation, the extraocular muscle, and much more. Improve your understanding of physiology by referring to this totally updated volume--organized by function, rather than anatomy--and make a stronger connection between physiological principles and clinical practice. Better visualize information with a new, revamped format that includes 1,000 illustrations presented in full-color to better clarify complex concepts and functions. Access the most recent molecular, genetic, and biochemical discoveries affecting eye function, and gain fresh perspectives from a new, international editorial team. Search the entire contents online and download all the illustrations at www.expertconsult.com.
Author: