Have yeast infection and rubbed eyes after touching yeast discharge. can this cause eye infection and can i get treatment while pregnant?

Not really, and yes: "Not really" to the first question. Have never seen a woman transfer a vaginal yeast infection to her eye. That may be because Candida yeast is already living on every outer part of our bodies (men or women). As long as the eyes have their normal protections such as natural tears, any added yeast should not overgrow. It's not impossible to happen but no worries, it can be treated if it happens.