Rare. Most migraines with an effect on the visual system usually cause the same phenomenon visually in each eye (cover one then the other to detect this). A very rare spasm of vessels in one eye only causes unilateral migraine but this is rare. Test your migraine if you have another and you can find the source which is probably the occipital lobe in the brain.
Am diagnosed with ocular migraines but I just had one that I think was in both eyes. No headache. Retinal Migraine or migraine aura affecting vision?
It effects vision. During the visual migraine episode. It can last between 5 minutes to 30 minutes. Any further queries click here --> https://www. Healthtap. Com/experts/12714048-dr-vahe-yetimyan.