Visual acuity

Updated: 2018-05-25

When to seek immediate medical care

See a doctor immediately if:

• Severe eye pain or irritation
• Vision loss, double vision, eye floaters, flashes of light, or halos around lights
• Severe headache, nausea, or vomiting
• Numbness or weakness on one side of the body
• Confusion, dizziness, or trouble talking

When to make a doctor's appointment

Make an appointment to see a doctor if:

• Impaired ability to read or write comfortably, drive safely, or do everyday activities