Week 3 : Sensory Perception textbook questions Flashcards
define what sensory changes mean ?
a number of changes ( some loss of smell, sight, sound, and touch) occur in the sensory organs as result of a combination of intrinsic and extrinsic factor .
Eyes and vision. True or false. Changes in vision and the eyes begin very early and are both functional and structural.
true
This is an age related decrease in near vision that typically becomes noticeable at the age of 40, where glasses are needed for close vision
Presyobia
some pathological conditions that are common in aging include
glaucoma
cataracts
macular degeneration
true or false. Extraocular changes : Age related changes affect both the form and function of the eyes
true
what is senileptosis ?
when eyes lose elasticity
when eyes lose elaasticity
senileptosis
what is entropion
prolonged turning inward of the lower lid
what is ectropion
decreases in orbicular muscle strength
what is dry eye syndrome
severe lubrication deficiency
does this fit in the category of extraocular changes:
senileptosis
entropion
ectropion
dry eye syndrome
yes all the above are apart of the extraocular changes
ocular changes : guess the disease
With aging, the cornea becomes flatter, less smooth, thicker , and duller in appearance. The result is increased far-sightedness
hyperopia
is hyperopia far-sightedness or near sightedness
far- sightedness
true or false: ocular changes : the ability to adjust to changes in light and the need for higher levels of lighting are the result of reduced responsiveness of the pupils and changes in the cornea.
wrong! changes in the lens, not the cornea
Ocular changes : describe what this is describing
This is a small, flexible, biconvex, Crystal-like structure just behind the iris- is the most responsible for visual acuity.
it is describing the lens
Ocular changes : ____ adjust the light entering the pupil and focuses it on the retina.
lens
Ocular changes: With age, light scattering increases and color perception decreases.
As a result, glare is a problem not only when created by sunlight outdoors but also when created by the reflection of light from any shiny object, such as polished floor or surface.
true
Intraocular changes :
______, lines the inside the eye, has less distinct margins is duller in appearance in older adults than in younger adults.
retina
Intraocular changes : Arteries in the back of the eye may show ____ and slight narrowing
atherosclerosis ( thickening or hardening)
true or false. Intra-ocular changes, arteries in the back of the eye may show atherosclerosis and slight narrowing. If a person has a long history of hypertension, veins may show indentations
( nicking ) as they pass over the arteries.
true
Ears and Hearing :
What is presbycusis ?
the most common type of hearing loss in older adults is a high-frequency, sensorineural
True or false. Hearing loss can lead to social withdrawal and decrease the risk for depression and falls.
false, it increases it
Ears and hearing :
What loses flexibility and becomes longer and wider as a result of diminished elasticity.
auricle
what does funduscopy mean ?
opthalmoscopic examination of the fundus of the eye
what is drusen ?
deposits under the retina, often found in people over the age of 60 years.
what is keratoconjuctivis sicca?
diminished tear production with age.
what is lipofuscin
an age related fatty brown pigment found in the liver, retina, kidneys, adrenals, nerve cells, and heart tissue
what is prelingual deafness
deafness that occurs before acquisition of spoken language
what does tonometry procedure
used by eye care professionals to determine intraocular pressure of the eye
what is the etiology behind keratoconjuctivitis sicca
the etiology is unclear ( but there are age related changes such as mucin secreting, lacrimal gland, mobomian glands that secrete surface oil)
what type of medications can cause dry eyes ?
vitamin a
diseases that affect the vision
Glaucoma
Cataracts
AMD
Explain what glaucoma is
the progression of glaucoma indicates a process –> natural fluids of the eye are blocked by ciliary muscle rigidity
gradual build of disease intra-ocular pressure —> damage to the optic nerve
what are the risk factors for the development of glaucoma ?
Age
Diabetes
steroid use
past eye injuries
family hsiotry
what are the 3 types of glaucoma
- Primary open angle glaucoma
- Acute angle- closure glaucoma
- Low-tension or normal tension glaucoma
name the characteristics for primary open angle glaucoma
asymptomatic until very late in the disease
can be treated and blindness or severe vision can be prevented (if detected early)
name the characteristics for acute angle closure glaucoma
-accompanied by redness and acute pain in and around the eye
-severe headaches
-nausea
-vomiting
-blurred vision
name the characteristics for low tension or normal tension glaucoma
damage to the optic nerve
cause is unknown
risk factors
1) family history
2) any kind of glaucoma
3) cardiovascular disease