Sensory Perception PDF
Document Details
Uploaded by WellInformedStanza5577
2022
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Summary
This document provides an overview of sensory perception, sensory alterations, and vision disorders. It discusses common sensory alterations like deficits, deprivation, and overload. Specific vision disorders like myopia, hyperopia, astigmatism, presbyopia, cataracts, and diabetic retinopathy are also examined. The document also touches on the risk of smoking on these conditions and how diabetes impacts vision.
Full Transcript
Sensory Perception 1 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved. Sensory Alterations Humans have five basic senses Sight S...
Sensory Perception 1 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved. Sensory Alterations Humans have five basic senses Sight Smell Hearing Taste Touch The inability to see, smell, hear, taste, or feel are referred to as sensory alterations. 2 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved. Three Common Sensory Alterations Sensory Deficits: a client has difficulty with one or more of the main senses Sensory Deprivation: a client lacks the ability to receive sensory stimulus perception Sensory Overload: a client receives stimuli at a rate and intensity beyond his/her ability to process 3 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved. Vision Disorders Myopia: nearsightedness Hyperopia: farsightedness Astigmatism: a refractive error whereby the eye cannot focus light evenly on the retina, causing blurred vision or distortion Presbyopia: decrease in the ability to focus up close or with small print 4 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved. Cataracts A cloudy area on the eye lens caused by proteins in the eye breaking down and clumping together Cause cloudy and blurry vision Make it hard to see well at night Sometimes cause double vision Colors appear faded and yellowing 5 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved. Diabetic Retinopathy Affects blood vessels in the retina and can lead to vision loss and complete blindness Can advance and damage the optic nerve causing glaucoma Is the leading cause of blindness in adults 6 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved. Smoking Smoking increases the risk for cataracts and diabetic retinopathy. 7 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved. Glaucoma: Increased Intraocular Pressure Screening included as part of a regular eye exam Measured by noncontact tonometry or an applanation tonometry If the eye pressure is high or if the optic nerve looks unusual the doctor measures the cornea thickness using a pachometer 8 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved. Risk A client who has diabetes is at risk for diabetic retinopathy and is two to five times more at risk for cataracts and has twice the risk of having open-angle glaucoma. 9 Copyright 2022 Assessment Technologies Institute, L.L.C. All rights reserved.
