During miscarriage i went blind for ten min docs never told me what could caused it? was in er at time gave fluids an o2 blood loss was normal range

Look into it: There is a condition called posterior reversible encephalopathy syndrome (PRES) that can occur in eclampsia. If that's what you had, it sounds like you had only a partial syndrome. You may have had only a "partial" eclampsia, so to speak. I suggest a neurological consultation. You MAY BE (I didn't say ARE) at higher risk of eclampsia in subsequent pregnancies.