W12: Decreased Vision

Question 1

What is homonymous hemianopia

Answer 1

Reduction in half of field of vision in both eyes

Question 2

What tool is used to assess this?

Answer 2

NIHSS visual quadrants assessment (and visual field)

Question 3

What are fresnel prism glasses?

Answer 3

Corrective eyewear used to address certain vision issues, particularly in cases of strabismus (misalignment of the eyes) or double vision (diplopia).

These prisms in the lenses of eyeglasses, they can alter the path of light entering the eye, effectively helping to align the images received by both eyes. This can alleviate double vision or help in the treatment of certain eye conditions where the eyes don’t align properly.

Question 4

All stroke survivors should have what in relation to vision?

Answer 4

Assessment of visual acuity while wearing the appropriate glasses

Examination of the presence of visual field deficit eg hemianopia and eye movement disorders eg strabismus (affects alignment of the eyes)