It is not advisable to use prescriptions to treat blurred vision, as the causes of blurred vision are complex and the corresponding illnesses involve different systems and departments, and cannot be generalised. When symptoms of blurred vision occur, it is advisable to go to a hospital to have the cause diagnosed by a doctor and then to treat the symptoms according to the specific cause, with vasoconstrictors, anti-vertigo drugs and antiemetics being the main treatment options.