Step 4: Read and complete the decision guide to learn more about your symptoms.
Problems With Vision
Before you are asked a series of questions about the details of your symptoms, it is important to determine whether you have a condition that warrants immediate, urgent or emergency care. For example, a sudden loss of or change in vision deserves prompt evaluation by your doctor.
Have you noticed the sudden onset of any of these symptoms:
seeing double (or double vision)
the feeling of a shade over the eye
lights are surrounded by halos