Causes of Broader Categories of Retinal migraine: Review the causal information about the various more general categories of medical conditions: 1  Pain conditions. 2  Eye and vision conditions.  Head conditions.
http://www.rightdiagnosis.com/r/retinal_migraine/causes.htm
Retinal Migraine Symptoms: Retinal Migraine is Migraine where there are repeated attacks of visual disturbances preceding the headache phase of the Migraine attacks. A retinal Migraine attack begins with monocular (in one eye) visual symptoms that can include: scintillations (seeing twinkling lights)
http://www.healthcentral.com/migraine/types-of-headaches-39444-5.html
Causes of Broader Categories of Retinal migraine: Review the causal information about the various more general categories of medical conditions: 1  Pain conditions. 2  Eye and vision conditions. 3  Head conditions.  Nervous system conditions.
http://www.rightdiagnosis.com/r/retinal_migraine/causes.htm
Retinal Migraine is Migraine where there are repeated attacks of visual disturbances preceding the headache phase of the Migraine attacks. A retinal Migraine attack begins with monocular (in one eye) visual symptoms that can include: 1  scintillations (seeing twinkling lights)  scotoma (areas of decreased or lost vision)
http://www.healthcentral.com/migraine/types-of-headaches-39444-5.html
Ocular Migraine Symptoms. People with ocular migraines can have a variety of visual symptoms. Typically you will see a small, enlarging blind spot (scotoma) in your central vision with bright, flickering lights (scintillations) or a shimmering zig-zag line (metamorphopsia) inside the blind spot.
http://www.pittsburgheyeassociates.com/ocular-migraines-eye-migraines/
Retinal migraine (also known as ophthalmic migraine, and ocular migraine) is a retinal disease often accompanied by migraine headache and typically affects only one eye. It is caused by an infarct or vascular spasm in or behind the affected eye.
https://en.wikipedia.org/wiki/Retinal_migraine
A retinal Migraine attack begins with monocular (in one eye) visual symptoms that can include: 1  scintillations (seeing twinkling lights) 2  scotoma (areas of decreased or lost vision)  temporary blindness.
http://www.healthcentral.com/migraine/types-of-headaches-39444-5.html
The vision symptoms accompanying painless ocular migraines are not related directly to the eyes. Instead, these visual symptoms occur as a result of the migraine “activity” in the visual cortex of the brain located in the back of the skull. Painless ocular migraines can appear suddenly, creating the sensation of looking through a cracked window.
http://www.pittsburgheyeassociates.com/ocular-migraines-eye-migraines/
The terms retinal migraine and ocular migraine are often confused with visual migraine, which is a far-more-common symptom of vision loss, resulting from the aura phase of the common migraine. The aura phase of migraine can occur with or without a headache. Ocular or retinal migraines happen in the eye, so only affect the vision in that eye, while visual migraines occur in the brain, so affect the vision in both eyes together.
https://en.wikipedia.org/wiki/Retinal_migraine
As described above, your vision and visual acuity will be affected significantly during an ophthalmic migraine attack or episode. If sharp vision is essential for your safety, then you should stop what you are doing immediately. If you are driving, pull over until the ocular migraine passes and your vision has cleared. Stay still until the ocular migraine resolves.
http://www.pittsburgheyeassociates.com/ocular-migraines-eye-migraines/
what causes retinal migraine
An infarct or vascular spasm in or behind the affected eye causes retinal migraine. A retinal migraine is an infarct or vascular spasm in or behind the affected eye.