Lecture 4 Visual Pathway Flashcards
1
Q
What is your visual field
A
Everything you see with one eye
2
Q
How can you test visual field
A
Confrontation test or automated perimetry
3
Q
Describe the visual pathway
A
Optic nerve Optic chiasma Optic tract LGB of the thalamus Optic radiation Occipital lobe
4
Q
Where does the optic chiasma sit and what are the clinical implications of this
A
Just above the pituitary
If there is a pituitary tumour it can grow bigger and compress the optic chiasma and affect the individuals vision
5
Q
What fibres cross the optic chiasma
A
medial nasal fibres to the opposite direction
6
Q
What part of the brain processes the right side of an image
A
Left side of brain
7
Q
What part of the brain processes the left side of an image
A
Right side of brain
8
Q
What type of vision lost due to pituitary enlargement
A
Bitemporal vision lost
