What are ocular migraines?

Ocular migraines are typically painless, temporary visual disturbances that can affect one or both of your eyes. They can appear suddenly and feel like you are looking through a cracked pane of glass. These visual distortions spread across your field of vision and usually disappear within 30 minutes or so.

They can be very frightening, but ocular migraines are mostly harmless, and the visual symptoms commonly resolve themselves without medication within 20 to 30 minutes.

Ocular Migraines are rarely accompanied by headache or eye pain. They are painless.

If you get ocular migraines, you may experience a variety of visual symptoms like these:

• small, enlarging blind spot (scotoma) in your central vision with bright, flashing or flickering lights (scintillations), or

• wavy or zig-zag lines surrounding the blind spot. The blind spot usually enlarges and may move across your field of vision.

Here’s my full post on Ocular Migraines… Top Tips To Deal With Ocular Migraines

The current theory around migraines is that they are triggered by activation of a mechanism deep in the brain, which releases inflammatory substances around the nerves and blood vessels of the head and brain. But why this happens and what brings about the spontaneous resolution of an ocular migraine still remains unknown.

Interestingly, MRI (imaging) studies have revealed that changes in blood flow to the brain occur during ocular migraines and visual auras, but the underlying cause for these changes also remain unknown.

To read more, click the link above for the full article.

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