Visual Impairments

Visual Impairments

Author: National Research Council

Publisher: National Academies Press

Published: 2002-08-17

Total Pages: 369

ISBN-13: 0309083486

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When children and adults apply for disability benefits and claim that a visual impairment has limited their ability to function, the U.S. Social Security Administration (SSA) is required to determine their eligibility. To ensure that these determinations are made fairly and consistently, SSA has developed criteria for eligibility and a process for assessing each claimant against the criteria. Visual Impairments: Determining Eligibility for Social Security Benefits examines SSA's methods of determining disability for people with visual impairments, recommends changes that could be made now to improve the process and the outcomes, and identifies research needed to develop improved methods for the future. The report assesses tests of visual function, including visual acuity and visual fields whether visual impairments could be measured directly through visual task performance or other means of assessing disability. These other means include job analysis databases, which include information on the importance of vision to job tasks or skills, and measures of health-related quality of life, which take a person-centered approach to assessing visual function testing of infants and children, which differs in important ways from standard adult tests.


Ocular Fluid Dynamics

Ocular Fluid Dynamics

Author: Giovanna Guidoboni

Publisher: Springer Nature

Published: 2019-11-25

Total Pages: 606

ISBN-13: 3030258866

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The chapters in this contributed volume showcase current theoretical approaches in the modeling of ocular fluid dynamics in health and disease. By including chapters written by experts from a variety of fields, this volume will help foster a genuinely collaborative spirit between clinical and research scientists. It vividly illustrates the advantages of clinical and experimental methods, data-driven modeling, and physically-based modeling, while also detailing the limitations of each approach. Blood, aqueous humor, vitreous humor, tear film, and cerebrospinal fluid each have a section dedicated to their anatomy and physiology, pathological conditions, imaging techniques, and mathematical modeling. Because each fluid receives a thorough analysis from experts in their respective fields, this volume stands out among the existing ophthalmology literature. Ocular Fluid Dynamics is ideal for current and future graduate students in applied mathematics and ophthalmology who wish to explore the field by investigating open questions, experimental technologies, and mathematical models. It will also be a valuable resource for researchers in mathematics, engineering, physics, computer science, chemistry, ophthalmology, and more.


Dynamic Ophthalmic Ultrasonography

Dynamic Ophthalmic Ultrasonography

Author: Julian Pancho S. Garcia

Publisher: Lippincott Williams & Wilkins

Published: 2012-03-28

Total Pages: 256

ISBN-13: 1451159455

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This video atlas is a dynamic presentation of ultrasound movements observed in the eye and orbit in various ocular conditions encountered in the clinical setting. The book shows the usual movement of a particular tissue and the possible types of motion it could manifest in various pathologic situations. A companion Website shows 180 B-scan ultrasound videos of typical and atypical ophthalmic tissue movements observed in various eye conditions in actual clinical cases. By watching the videos, the viewer becomes familiar with the intricacies of ophthalmic tissue dynamics and learns to interpret ultrasound findings in a logical manner. Several cases are included to test the reader.