Visual Impairments Flashcards
Impairments include defects in acuity field loss ocular mobility or color perception
The definition of acuity is seeing understanding things clearly 20/20 vision is n example of normal visual acuity’s
Legal blindness
20/200
Visual field of 20 degrees or less
Legal blindness is determined by an eye care professional and is used for disability.
Low Vision
Significant vision loss with best correction
-Optical device
-environment modification
-traning
Blind
Individuals are totally without vision or light perception
Modality of learning
-auditory
-Tactile
-Kinestheic
Visual disorders
Poor visual acuity
-Cararacts(Blurred vision)
-Myopia(nearsightedness)
-Astigmatism
Visual fields deficits
-Field of vision refers to entire area that can be seen without shifting ones gaze
Centrel field loss:Musclar degeneration unable to read print, discern facial features
Signs of peripheral vision loss
-Tripping
-having trouble walking in the dark
-difficulty driving
-reading much slower than usual
-Shimmers of light followed by tunnel vison
Impairment in motility and gaze
Difficulties in ocular motility occurs in individuals with facial paralysis
Starbismus:Misalignment with eye(Crossed eyed)
Amblyopia:one eye sees a different image from other eyes(lazy eye)
Nystagmus:Involuntary
Impairments in light and color reception
Photophobia
-Unusual sensitivity to light
-Albinism or cataracts(when there eyes are red they are blind blue eyes they can see a bit)
-Color blindness
Etiology
-Congenital and acquired
-prematurity/Pregnancy
-brain truama/or damage
-drugs
-Diabetes
-Trumors
Treatment
-surgery
-environmental adaptation
-Mira dogs
-cane
Role of the set
-Help with bathroom
-Self esteem
-social activités
-mobility training
-braille