Create
Learn
Share

Vision

rename
jaysica2014's version from 2017-06-29 01:11

Section 1

Question Answer
reception information through rods and conesvision
process that involves vision with other sesnsesvisual perception
impariemtn severe enough to interfere w/ADLlow vision
all degrees of vision loss including total blindmentvisual impairment
inability to perceive any stimulus through the eyestotal blindness
acuity of less than 20/200 with correction or visual field restriction greater than 20 degreeslegal blindness
dr specialize in medical/surgery of eyesopthalmologist
specializes in exam/diagnosis/treatment/management of disease/fit glassesoptometrist
absent vision of visual field surrounded by normal vision/sensitivityscotoma
hierarchy bottom to topocculomotor control/fields/acuity, attention, scanning, pattern recognition, memory, cognition, adaption
3 bottom hierarchy act together to provide the basis for visual skills
clear and accurate informationvisual cuity
ability to visually detect targets in contrastcontrast sensitivity
turn eyes inward coverge
turning eyes outward diverge
coordination of alignment, ROM, speed, and coordinationocculomotor control
normal condition where eyes are aligned so the sight of each eye is directed at same pointbinocular alignment
visually following moving objectsmooth pursuits
visually jump from one obj to anothersaccadic eye movement
complete reception of environment, visual quantity, confrontation testingvisual fields
memorize

Section 2

Question Answer
fixating gaze on target and shifting to other objects as neededvisual attention
identify important featurespattern recognition
creating mental image and store in STMvisual memory
manipulate info and understand to use w/other sensory visual cognition
foundation for all learningvisual cognition
can see close but not far away; most young peoplenearsightedness (myopia)
farsigtedness med termhyperopia
age related change farsightednesspresbyopia
curvatureastigmatism
clouding of lenscataracts
cataracts is caused byage, smoke, trauma, alcohol, xray, diabetes, genes, UV
early symptomrs of cataractloss of contrast, sensitive to glare, difficult differentiating blue from black
medical intervention for cataractsthcik lenses/surgery
destruction of retinamacular degeneration
medical intervention for macular degenerationNONE; drug/laser treamtent may slow progression
damage to optic nerve from pressureglaucoma
risk factors for glaucomahx diabetes, 40+, black people
medical intervention glaucomaeye drops, surgery, medication
dilation and leaking of blood vessels/overgrowthdiabetic retinopathy
diabetic retinopathy symptomfloaters, blurred vision/loss
medical intervention diabetic retinopathycontroll blood surgar/laser surgery
memorize

Section 3

Question Answer
visual acuity assessmentsnellen chart, optic 200, biVABA
binocular alignemtn is not presentstrabismus
double visiondiplopia
eye overshoot/undershootdysmetric eye movement
strabismus (aka lazy eye effects)diplopia, dysmetric eye movement, decreased sped/range, headaches/eye strain/neck strain
occulomotor control assesmsnetobserve daily occupation, shine light, confrontation testing
affects what side (more common) homonymous hemianopialeft side
most common visual imparment after CVAhonoymous hemianopia
strategies for visual field deficitseducation, remedial strategies, compensatory, cues
memorize

Section 4

Question Answer
not aware of vision detail to one sidehemineglect/inattention
inability to recognize and name objectvisual agnosia
deficits in visual attention and scanninng examplehemineglect/inattention
deficits in pattern recognitionvisual agnosia, cant scan or recognize patterns
deficits in visual memoryif you tell child is orange but its apple they may msitake forever
deficits in visual cognitionspatial agnosia, alexia, spatial relations, visual closure, figure ground perception
assessment of CNSMVPT, biVABA
CNS strategies OT interventionoccupation, matching/sorting, remeidal, compensatory
general treatment guidelinesglasses, reminder to wear glasses, education/training
memorize