If you experience a sudden change in vision - from your ability to focus to a full or partial loss of vision - talk to a doctor right away.
Not every vision change indicates an emergency, but immediate medical attention is always recommended.
Is this an emergency?
Am I at risk of a change in vision?
How can I avoid vision changes?
Eye diseases are common and can go unnoticed for a long time—some have no symptoms at first. A comprehensive dilated eye exam by an optometrist or ophthalmologist (eye doctor) is necessary to find eye diseases in the early stages when treatment to prevent vision loss is most effective. Centers for Disease Control
What can I expect during an exam?
|20-30 minutes||None||Usually immediate|
Your doctor will want to know which medications you take, any eye conditions with which you have been previously diagnosed, and any family history of conditions such as diabetes, heart disease, glaucoma, and macular degeneration. Your eye exam may also include a series of tests, including:
Your doctor will examine the inner structures of your eyes to provide an accurate diagnosis.
Your doctor may dilate your eyes in order to achieve a clear view of the retina and look for any abnormalities. He or she will also use special tools to measure your intraocular pressure (IOP). Abnormally high IOP may indicate glaucoma.
How are vision changes treated?
What is my best defense against vision changes?