Do you have any of the following symptoms that require emergency treatment? Call 911 or other emergency services immediately.

• Sudden partial or complete loss of vision occurs in one or both eyes.

  Note: Treatment is needed within 90 minutes to save vision.

  Other symptoms may or may not be present, such as:
  • •Sudden flashes of light.
  • •New floaters.
• Vision changes occur with sudden, severe eye pain, blurred vision, headache, or severe nausea and vomiting. These vision changes may be a sign of acute angle glaucoma.
• A curtain or veil that covers the field of vision, blurred vision, black spots, or flashes or sparkles of light, that occur in one eye, may be signs of retinal detachment.
• Vision changes occur with signs of a stroke.
• A change in the size or shape of a pupil occurs along with eye pain or vision changes.