Low Vision Flashcards
1
Q
Presbyopia
A
Difficulty focusing on near objects
2
Q
Central Vision System
A
Analyzes a visual target in terms of its details, color, shape, and texture
3
Q
Peripheral Vision System
A
Provides background information about one’s position in relation to the environment and is quick to detect emotion
4
Q
Primary Visual Aging Changes
A
- Strength of muscles and tone decrease
- Sclera and iris show signs of degeneration
- Pupils become smaller
- Lens of the eye becomes thicker, more inflexible, and more opaque
5
Q
Cataracts
A
- Central vision loss
- Lens of the eye becomes more opaque, and a reduction of light going to the retina occurs
- Reduced visual acuity
- Blurry vision
- Decreased ability to distinguish colors
- Cannot drive at night
- Distortion of visual images
- Increased glare sensitivity
- Increased difficulty distinguishing similarly colored objects
6
Q
Age-Related Macular Degeneration
A
- Central vision loss
- Impaired mobility skills
- Reduced ability to perform ADLs and IADLs
- Decreased ability to recognize faces and perform detail work
Difficulty recognizing facial expressions and gestures
7
Q
Glaucoma
A
- Peripheral vision loss
- Deficitis in ambulation, reading, writing
- Pressure in the eyes leads to damage to the optic nerve
8
Q
Diabetic Retinopathy
A
- Fluctuating vision loss
- Blurry vision
- Reduction in contrast sensitivity
- Decrease in ability to drive at night
- Reduction in color discrimination
- Patchy spots of visual field loss
- Total blindness
