00:00Visual pathways, what do you actually need to know? There's the optic nerve, so
00:07there's the optic nerve, there's the optic chiasm, there's the optic tract. If
00:12you cut the left optic nerve you lose vision in the left eye. If you cut the
00:19optic chiasm because fibers are crossing here you lose the lateral visual fields
00:27in both eyes, bitemporal hemianopia. If you cut the left optic tract because
00:36some fibers have crossed and some fibers haven't, if you cut the left optic tract
00:41you lose the right visual field in both eyes, right homonymous hemianopia. Sure
00:51there's more, I reckon those are the three you've got to know. The eye is
00:54complex enough already, I've done a 20-minute video explaining all of this
00:58have a look at that.
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