a person who studies or is an expert in natural history, especially a zoologist or botanist. an adherent of naturalism in literature or art.
Causes. Occipital neuralgia happens when thereâs pressure or irritation to your occipital nerves, maybe because of an injury, tight muscles that entrap the nerves, or inflammation. Many times, doctors canât find a cause for it. Some medical conditions are linked to it, including: Trauma to the back of the head; Neck tension or tight neck muscles
Some ocular migraines cause temporary but complete vision loss in one eye. In other cases, ocular migraines can cause vision disturbances like: 1  Blurring. 2  Partial vision loss. 3  Scotomas, or blank spots in your vision. 4  Dimming.