The optic nerve is the conduit that transmits nerve signals created at the photoreceptors directly to the brain. While the optic nerve has no photosensory capability of its own, when it is injured, malfunctions or compromised in blood supply, its ability to supply electrical impulses to the brain for interpretation is impaired. The resulting lost vision is not recoverable.
Diseases of the optic nerve head tend to require less retinal imaging when compared to other retinal diseases. This is because many ...
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