CNUR 204: Unit 9 - Eyes Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
Define cataract An area of opacity within the lens, which
may be
present in one or both eyes.
What are the causes of cataracts? - Advanced age
- Blunt or penetrating trauma
- Congenital factors (maternal rubella)
- Radiation or UV exposure
- Corticosteroids
- Diabetes mellitus
What are the clinical - Decrease in vision
manifestations - Abnormal colour perception
of cataracts? - Glare
What diagnostics are used for Ophthalmoscopic or slit-lamp microscopic
cataracts? examination.
How are cataracts treated? - Surgical removal
How are cataracts managed? - Changing eyewear prescription
- Increased lighting
- Strong reading glasses/magnifiers
, What assessments should be - Distance and near visual acuity tests
performed for patients with - Psychosocial effects of diagnosis
cataracts? - Knowledge regarding disease process
What interventions should the - Wearing sunglasses outside
nurse - Avoiding unnecessary radiation
implement for patients with - Adequate nutritional status (vitamins)
cataracts?
Define age-related macular An eye disease that progressively destroys
degeneration the
macula, causing irreversible central vision
loss.
Define dry (nonexudative) AMD - More common
- Close-vision tasks become difficult
- Macular cell atrophy, causing progressive
and
painless vision loss
Define wet (exudative) AMD - Severe form
- Rapid onset
- Abnormal blood vessels in or near the
macula
What are the causes of AMD? - Advanced age
- Gender (women)
- Family history
- Cigarette smoking
- Long-term exposure to UV light
Answers with Verified Solutions | Latest
Updated 2026
Define cataract An area of opacity within the lens, which
may be
present in one or both eyes.
What are the causes of cataracts? - Advanced age
- Blunt or penetrating trauma
- Congenital factors (maternal rubella)
- Radiation or UV exposure
- Corticosteroids
- Diabetes mellitus
What are the clinical - Decrease in vision
manifestations - Abnormal colour perception
of cataracts? - Glare
What diagnostics are used for Ophthalmoscopic or slit-lamp microscopic
cataracts? examination.
How are cataracts treated? - Surgical removal
How are cataracts managed? - Changing eyewear prescription
- Increased lighting
- Strong reading glasses/magnifiers
, What assessments should be - Distance and near visual acuity tests
performed for patients with - Psychosocial effects of diagnosis
cataracts? - Knowledge regarding disease process
What interventions should the - Wearing sunglasses outside
nurse - Avoiding unnecessary radiation
implement for patients with - Adequate nutritional status (vitamins)
cataracts?
Define age-related macular An eye disease that progressively destroys
degeneration the
macula, causing irreversible central vision
loss.
Define dry (nonexudative) AMD - More common
- Close-vision tasks become difficult
- Macular cell atrophy, causing progressive
and
painless vision loss
Define wet (exudative) AMD - Severe form
- Rapid onset
- Abnormal blood vessels in or near the
macula
What are the causes of AMD? - Advanced age
- Gender (women)
- Family history
- Cigarette smoking
- Long-term exposure to UV light
