A headache that comes and goes may not always seem like a reason to call a doctor. But when a headache is accompanied by flashing lights, blind spots, blurry vision, or temporary vision loss, it warrants more attention. Ocular migraines can cause unsettling visual symptoms, and in some cases, similar symptoms may be linked to other eye or health conditions that require prompt evaluation.
At Southside Eye Care, our eye doctors can evaluate changes in your vision, help determine whether ocular migraines may be responsible, and rule out other potential causes. Understanding what is happening can help you manage symptoms more confidently while protecting your long-term eye health.
What Is a Migraine?
A migraine is a neurological condition that can cause recurring headaches and other symptoms. Migraine pain is a throbbing or pulsating pain and may affect one side of the head, although symptoms vary considerably from person to person.
In addition to headache pain, migraines may cause:
- Nausea or vomiting
- Dizziness or lightheadedness
- Sensitivity to light, sound, or smells
- Fatigue or weakness
- Difficulty concentrating
- Visual disturbances
Migraine attacks may last several hours or, in some cases, several days. People who experience headaches frequently may be diagnosed with chronic migraine, which generally involves headaches occurring 15 or more days each month for more than three months.
What Are Ocular Migraines?
The term ocular migraine is often used to describe a migraine that involves temporary visual symptoms. These symptoms may develop before a migraine headache, occur during a migraine headache, or appear without significant headache pain.
Common ocular migraine symptoms may include:
- Flashing or flickering lights
- Zigzag or shimmering patterns
- Colored spots or halos
- Blind spots in the field of vision
- Blurred or distorted vision
- Temporary loss of vision
- Increased sensitivity to light
Visual symptoms associated with migraine aura often affect both eyes, even if they seem more noticeable on one side of your visual field. They generally resolve within an hour.
A retinal migraine, however, is a rarer condition that causes temporary visual disturbances in only one eye. Symptoms can include flashing lights, areas of reduced vision called scotomas, or temporary vision loss.
Because potentially serious eye or circulatory problems can also cause sudden changes in one eye, it is important not to assume that every episode is simply a migraine.
What Causes Ocular Migraines?
Researchers are still trying to understand fully why migraines produce visual symptoms. Migraine aura is believed to involve temporary changes in neural activity in the brain, including in areas that process vision.
Retinal migraine may involve temporary changes in blood flow that affect the retina or the blood vessels supplying the eye.
Certain factors can also trigger migraines in susceptible people. Possible migraine triggers include:
- Stress
- Lack of sleep
- Dehydration
- Bright or flashing lights
- Hormonal changes
- Skipping meals
- Certain foods or beverages
- Extended screen use
- Changes in caffeine intake
Tracking when symptoms occur and what you were doing beforehand may help you and your doctor identify patterns.
Why Should You See a Doctor About Ocular Migraines?
Don’t automatically attribute visual disturbances to a migraine, especially if they are new, suddenly more frequent, or affect only one eye. Some eye and neurological conditions can cause symptoms that resemble ocular migraines.
An examination can help determine whether your symptoms are related to migraine or another problem, such as:
- Retinal disease
- Retinal tears or detachment
- Reduced blood flow to the eye
- Blood vessel inflammation
- Blood clotting disorders
- Certain autoimmune conditions
- Transient ischemic attacks or stroke
An eye doctor can examine the retina, optic nerve, and other structures inside the eye for signs that may point to another cause.
When Should You Seek Immediate Care for Visual Symptoms?
Some vision changes require urgent medical attention rather than a routine appointment. Seek prompt care if you experience sudden vision loss, especially in only one eye or if it does not resolve quickly.
You should also seek immediate medical attention if visual changes occur along with symptoms such as:
- Facial drooping
- Weakness or numbness on one side of your body
- Difficulty speaking
- Severe dizziness
- Confusion
- A sudden, unusually severe headache
These symptoms may indicate a medical emergency and should not be assumed to be caused by a migraine.
How Are Ocular Migraines Diagnosed?
No single test confirms every ocular migraine. Diagnosis usually begins with a careful discussion of your symptoms, including what you see, how long the visual disturbance lasts, whether one or both eyes are affected, and whether headaches occur before or afterward.
Your eye doctor may want to perform a comprehensive eye exam to check for conditions affecting the retina, optic nerve, or the eye’s circulation. Depending on your symptoms and medical history, your doctor may recommend additional testing or evaluation by another healthcare provider.
What Can You Do When an Ocular Migraine Occurs?
If you have already been evaluated and your symptoms have been identified as migraine-related, resting in a dark, quiet environment may help until the episode passes. Reducing screen use, staying hydrated, eating regular meals, and keeping a regular sleep schedule may also help some people reduce migraine triggers.
Consider keeping a migraine diary that records when symptoms occur, how long they last, possible triggers, and whether they affect one or both eyes. This information can be valuable when discussing recurring episodes with your doctor.
Get Ocular Migraine Help at Southside Eye Care in Chesapeake, VA
Ocular migraines can be alarming, particularly when they interfere with your ability to see clearly. While migraine-related visual disturbances are often temporary, you should have new or unexplained changes in vision evaluated rather than ignored.
If you are experiencing recurring visual symptoms, schedule an evaluation at Southside Eye Care in Chesapeake, VA. Our team can assess your eye health, investigate potential causes, and help you determine the right next steps. Call 757-484-0101 or schedule an appointment online to get started.
