As a matter of fact, yeast infection has little thing to do with your vision, despite the fact that it could be really serious sometimes. However, if your yeast infection goes too serious, you will have some symptoms such as headache, which could indirectly give rise to blurred vision or something in relation to your eyes.
Well, yes, yeast infection can lead to some eye problem, such as the dry eyes, eye infection, even the pink eyes. Generally speaking, when you have yeast infection, you will constantly have an overgrowth of bad bacteria in your system, and then you will have a weakened immune system. In the end, your immune system isn't exactly going to be able to keep busy fighting whatever in your eyes. In other words, if you have chronic yeast infection that always returns it could mean that the bacteria in your body is out of balance, or your immune system is low which keep this bacteria in check. In this situation, it is possible to have dry eyes, pink eyes.