Visual

Question 1

Cataracts manifestations?

Answer 1

• Clouded, blurred, or dim vision (early stages)
• Decrease/Abnormal color perception (early stages)
  
  • Fading or yellowing of colors
• Night vision difficulty
• Sensitivity to light and glare
• Halo vision around light sources
• Double vision in a single eye

Question 2

Pathophysiology of Glaucoma?

Answer 2

• Aqueous production (inflow) and aqueous reabsorption (outflow) must be balanced to maintain IOP
• Outflow occurs at angle where iris meets cornea
• Inflow > outflow → increased IOP
• Increased IOP → permanent loss of vision

Question 3

Scope of practice for LVN/LVN in caring for clients with visual disorders?

Answer 3

A LVN/LPN can check a client’s visual acuity with a Snellen chart.

Question 3

Glaucoma risk factors?

Answer 3

• Family history
• Age > 60
• Hypertension, cardiovascular disease, diabetes, hypothyroidism, myopia
• Prolonged corticosteroid use
• Severe myopia (near-sightedness)