This is your 6th post. I've looked at your previous, you are about 28, healthy, and -6 myope. Quit worrying about low blood pressure. There is ONE type of unusual glaucoma called normal tension glaucoma that can be related to a single episode of severe shock such as almost dying of blood loss from injury, child birth, etc. The second is people that take their blood pressure medication at bedtime and drop their BP to unacceptable levels say 90/ 40. This was recognized a long time ago and now all physicians tell patients not to take BP meds at bedtime. So don't worry about your BP, much safer area than 205/165.