Chapter 2 Cards Flashcards
Where does information in the visual fields go?
Info from each visual field goes to the opposite side retina and hemisphere. Ex: info from the right visual field goes to the left retina which connects to the left hemisphere
What is confrontational visual field testing and why is it useful?
Used if the patient has damage in their eyes/visual pathways. Helpful to determine if the patient has visual deficits. Patients with Wernicke’s or TCS often have visual deficits.
Define bitemporal hemianopia.
Blindness in the lateral visual field for both eyes; occurs if there’s a tumor on the optic chiasm.
What is hemianopia?
Half-vision or as the book says, “half-blindness.”
What is homonymous hemianopia?
The same part of the visual field is affected in each eye; patient is blind in contralateral visual half-field
What is quadrantopia? What is another name for it?
About 1/4-1/3 of visual field deficit. It is also called quadrantic hemianopia.
