Blurred vision is a self-perception of blurred vision, which can be interpreted as “dizziness”, and dizziness is the equivalent of “dizziness + dizziness”, so patients with blurred vision often experience dizziness, which is often triggered by anaemia, presbyopia, low blood pressure, and changes in body position. In older people, blurred vision may also refer to presbyopia, a manifestation of presbyopia, which is usually difficult to see when looking at close objects and requires pulling a mobile phone or book at a distance to read. This can be judged in relation to one’s age and vision.