High blood pressure, or hypertension, does not directly result in blurred vision. Rather, high blood pressure left untreated overtime will cause damage to organs including the eyes and brain that
may result in blurred vision. Because of the distinct lack of symptoms, high blood pressure is sometimes referred to as the "silent killer". According to WebMD, vision problems such as blurred vision may indicate a hypertensive crisis. A hypertensive crisis can lead to a stroke or heart attack. Hypertension is a contributing risk for the occurrence of a stroke, which can result in blurred vision. Untreated high blood pressure may also result in damage to the eye, a condition known as hypertensive retinopathy. Hypertensive retinopathy is caused by damage to the blood vessels in the retina as a result of high blood pressure.