Nursing 313-Sensory Function, Mobility

Nursing 313-Sensory Function, Mobility - Sensory Function...

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Sensory Function Mobility Nursing 313
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2 Sensory Apparatus Appreciation of Sensory Changes Normal changes of aging do not result in abrupt awareness of sensory loss Accumulated atrophy of sensory receptors in eyes, ears, nose, buccal cavity, and peripheral afferent nerves substantially reduces vividness of environmental impressions Age-related declines variable and not generalized to all sensory systems or all older individuals Most sensory losses of older adults are gradual and irreversible
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3 Reaction to sensory and environmental alterations (Illustration by Joseph Pierre.)
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4 Sensory Apparatus Alternation in sensory experiences may distort perception and reactions in the elderly Sensory deprivation can result from altered sensory capacity and restrictive environments leading the nurse to conclude that the elder is confused Alteration in Sensory Experience Sensory deprivation Reduced sensory capacities Elimination of patterns and meaning from input Restrictive, monotonous environments Sensory overload Abrupt, unexpected environmental change such as accident or hospitalization
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5 Vision and Vision Impairment Changes in vision begin in the mid-40s for many, including decreased pupil size and decreased ability for night vision Presbyopia Flexible lens of eye gradually loses elasticity, affecting refractive ability Dry Eye Changes in mucin-secreting cells necessary for surface wetting, in lacrimal glands, or in meibomian glands that secrete surface oil Occurs in women after menopause although it can occur in men as well
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6 Vision and Vision Impairment Diseases Affecting Vision Glaucoma Results from increased intraocular pressure and can lead to optic nerve damage and blindness Primary open-angle glaucoma: 80-90% of cases Normal-pressure glaucoma Acute angle-closure glaucoma: rapid rise in intraocular pressure Screening Adults 65+ should be evaluated annually Every 6 months with glaucoma controlled by medication
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7 A, Simulated vision with glaucoma. B, Normal vision. (From National Eye Institute, National Institutes of Health, 2004.)
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8 Vision and Vision Impairment Diseases Affecting Vision Cataracts Caused by oxidative damage to lens protein and fatty deposits (lipofuscin) in ocular lens Appearance of halos around objects as light is diffused Cataract removal becomes a consideration as soon as visual-related impairment in activities of daily living is noted
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9 A, Simulated vision with cataracts. B, Normal vision. (From National Eye Institute, National Institutes of Health, 2004.)
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10 Vision and Vision Impairment Diseases Affecting Vision Diabetic retinopathy Effects of elevated blood sugar caused by diabetes, which creates microaneurysms in retinal capillaries that cause impairment of oxygen and nutrients to eye
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Vision and Vision Impairment Diseases Affecting Vision Macular degeneration
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Nursing 313-Sensory Function, Mobility - Sensory Function...

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