<unk>  is a<unk>  disease often accompanied by<unk>  headache and typically affects only one eye. It is caused by ischaemia or vascular spasm in or behind the affected eye. The terms<unk> " and "ocular<unk> " are often confused with "visual<unk> ", which is a far-more-common symptom of vision loss, resulting from the aura phase of<unk>  with aura. The aura phase of<unk>  can occur with or without a headache. Ocular or<unk> s happen in the eye, so only affect the vision in that eye, while visual<unk> s occur in the brain, so affect the vision in both eyes together. Visual<unk> s result from cortical spreading depression and are also commonly termed scintillating scotoma.
Retinal migraine
Scintillating scotoma
Optic papillitis
Aura (symptom)
Optic neuritis
Ocular ischemic syndrome
Diabetic papillopathy
Primary juvenile glaucoma