#scotomas

[briery]

Hubert Airy’s drawing illustrates how his migraine aura grew

There’s still much we don’t know about migraines and migraine auras. One hypothesis is that a sort of electrical wave sweeps across the visual cortex, causing hallucinations that spread across the corresponding parts of the visual field. In a loosely descriptive way, Airy’s time series drawings—showing an ever expanding shape—jibe with this too.

This detail from Joseph Babinksi’s 1890 drawing of his migraine aura shows a zigzag pattern not unlike the one Hubert Airy saw.

[miraculumvitae]

Never mistake lack of exposure for evidence. “I have not seen it” ≠ “it cannot exist.

[personalcare-nheal]

What is Scintillating Scotoma and its Causes?

What are Scintillating Scotoma Diseases? What are the Scintillating Scotoma Causes? Read the blog and read the symbols of a Scotoma disease.

Scintillating scotomas diseases are similar to other scotomas in that they present as dots, floaters, or blind spots in the field of vision. Scotomas smear and blur the vision, but they are not bits of dirt or grit that have accidentally fallen into the eye.