This course, with Dr. Diane Powers Dirette, provides an overview of the visual system and basic visual deficits. Participants are taught to conduct a visual screening and to provide interventions for visual deficits. Also included in this course is instruction about the differences between homonymous hemianopia and unilateral inattention, as well as training in how to screen for and treat these disorders. Printable screening sheets are included.
Diane Powers Dirette is a professor in the Department of Occupational Therapy at Western Michigan University, mainly teaching Perception and Cognition, Research, and Theory. She earned her bachelor’s degree at Eastern Michigan University and her master’s and doctorate degrees at New York University, studying occupational therapy at all levels. She has published in national and international journals and has presented at local, regional, national, and international conferences. Dr. Dirette’s main research interests are focused on treatments for people with acquired brain injuries, for whom she developed a frame of reference titled Self-awareness Enhancement through Learning and Function (SELF). Other areas of research include evidence-based practice, the use of compensatory strategies for cognitive deficits, Tai Chi for people with mental illness, and the use of grasp tests to detect malingering. She has served on the editorial boards of numerous journals in the health professions and is the coeditor of the textbook, Conditions in Occupational Therapy: Effect on Occupational Performance. She is the cofounder and Editor-in-Chief of The Open Journal of Occupational Therapy.
Participants will review and be able to describe the basic anatomy of the eye including basic structures, muscles, and innervation of the eye. Participants will also be able to explain the anatomy of visual processing from visual input to processing in the visual cortex.
In this chapter, participants will describe visual deficits in several categories including refractive, ocular motor, accommodative and visual field deficits. Participants will also learn to differentiate between homonymous hemianopia and unilateral inattention.
In this chapter, basic visual screening procedures to detect problems with acuity, contrast sensitivity, ocular motor, pupillary functions and visual fields will be demonstrated and discussed.
This chapter will discuss the three major treatments for visual deficits: remediation, compensation and adaptation. Participants will learn processes for implementing each category of treatment for specific deficits.