As additional sources for vital records, original documents, vintage photographs and surname-based DNA projects are discovered, this page is updated to offer the best list for researching Koepka ancestry.
View image. The optic nerve connects your eyes to your brain. It carries the visual messages that you see to your brain. An injury to your optic nerve is called traumatic optic neuropathy. If your injury is severe, you may have permanent changes in your vision.
Cranial Nerve 4. This is the trochlear nerve, which stimulates one of the eye muscles; namely, the superior oblique muscle. If this nerve has been damaged, when you move your eye to look towards your nose, you will not be able to move your eye downwards. Walking downstairs will give you double vision.