Breast Cancer Symptom

Vision problems can be a symptom of breast cancer?
Vision problems that do not require corrective glasses but the problems serious vision such as blind spots?
I'm not sure why on earth that has made the connection between these things … ??? It could possibly be a symptom of metastatic breast cancer that has Metz for the brain in the occipital lobe, or behind the eye, I suppose …. But it is unlikely