[markasoftware]

I have friends who have had serious permanent vision changes as a result of taking a reasonable dose of psychedelics one time (which is one of the main reasons I haven't tried it). If you overdose on either lsd or alcohol you'll have serious ill effects.

[larodi]

Vision changes are part of any intoxication, most avid alcohol users have them all the time. You have vision changes due to high blood pressure, so vision is perhaps not a KPI to put on the table as a major one.