"Morris Dovey" wrote in message
...

To discover if you have been affected, sit in a comfortable chair, raise
your right foot and make clockwise circles with it.

While making clockwise circles in the air with your right foot, draw a
large number '6' in the air in front of you with your right hand.

If your right foot is now making counter-clockwise circles you have been
affected.

The condition is irreversible.

It actually affects the optic nerve, right where the it meets behind the
eyes, and usually in the form of an Arterial Venous Malformation, a knotted
mass of blood vessels. I had to have mine removed surgically [in 2004].

Dave in Houston