It normally doesn't,
but a severe lowering of bp causes a graying out (or blacking-out) of vision.
(This is what happens to pilots in high G maneuvers.)
effect of penicillin and blood pressure medicine
high blood pressure
high blood pressue, glacouma
It causes blood pressure to increase.
no
High blood pressure can damage your heart, eyes, kidneys, blood vessels and brain
Any activity that relieves stress or causes stress can have an effect on your blood pressure. If watching fish relieves stress for you, it can have the effect of lowering your blood pressure.
When you lay upside down, the blood rushes to your head, causing an increase in blood pressure in the blood vessels in your eyes. This increased pressure can make the blood vessels in your eyes dilate, appear red, and give a bloodshot appearance.
yes
no
maybe
you get aids