A leading optometrist has issued an urgent health warning that could save lives, urging the public not to ignore sudden changes in their peripheral vision. This seemingly minor symptom could be the only visible sign of an impending "silent stroke" or transient ischemic attack (TIA).
Nicola Alexander-Cross, a practising optometrist and contact lens specialist, emphasizes that the eyes are "windows to your overall health" and can reveal critical information about your vascular system. Changes in the corner of your eye might indicate reduced blood flow to the brain, a precursor to a major cerebrovascular event.
Why Your Peripheral Vision Matters More Than You Think
Unlike central vision problems which are often quickly noticed, alterations in peripheral vision can be subtle and easily dismissed. However, these changes demand immediate medical attention.
The critical signs to watch for include:
- Sudden loss of vision in one or both eyes
- A dark curtain or shadow moving across your field of vision
- Blurred or fuzzy sight in your peripheral view
- New distortions or waves in your side vision
The Silent Stroke Connection
These visual disturbances occur because the visual pathway receives its blood supply from the same vessels that feed the brain. When blood flow is compromised, the eyes are often the first area to show symptoms.
"Time is brain", explains Alexander-Cross. "Every minute counts when dealing with a potential stroke. Getting immediate treatment can significantly reduce the risk of long-term disability or even save your life."
What to Do If You Experience Symptoms
Medical professionals advise taking immediate action if you notice any sudden changes in your vision:
- Do not ignore the symptoms hoping they will disappear
- Seek emergency medical attention immediately
- Inform healthcare providers about all your symptoms
- Follow up with both emergency care and an optometrist
Regular eye examinations remain crucial for early detection of not just vision problems but underlying health conditions. Your optometrist might be the first healthcare professional to detect signs of stroke risk, diabetes, or high blood pressure through a comprehensive eye exam.
