When a patient with hypertension develops blurred vision, it depends on whether the blurred vision occurs acutely or is chronic and progressive. If it is an acute occurrence, consider whether the blurred vision is caused by bleeding from ruptured arteries in the fundus caused by elevated blood pressure. If the blurred vision is progressive, it should be considered that hypertension has caused the arteriosclerosis of the fundus arteriosus resulting in insufficient local blood supply, thus gradually causing blurred vision and vision loss. In some cases, blurred vision in elderly people with hypertension may not be caused by hypertension, but by eye diseases such as cataract and glaucoma. Therefore, if a patient with hypertension develops blurred vision, he or she should visit an ophthalmologist for a clear diagnosis in a timely manner.