If you’ve developed blurred vision that differs from mere worsening eyesight, there are three benign causes, but these explanations don’t rule out more serious or life-threatening causes.
“A temporary visual disturbance or episode could be a symptom of many things,” begins Cindy P. Wang, O.D., F.A.A.O., with South Pasadena Optometric Group. in CA. “The most common and benign is dry eyes.
“Dry eyes are often caused by air quality, reduced blinking, poor tear film, medications or prolonged computer use.
“Using artificial tears, taking frequent breaks and adjusting the height of computers to be below eye level can alleviate the symptoms.”
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Dr. Wang continues, “Another common cause of blurred vision is eyestrain, which can be caused by prolonged near work with infrequent breaks.
“Symptoms of eyestrain include blurred vision, headaches, dry eyes and neck and shoulder pain.
“Symptoms should decrease after resting your eyes. Try looking 20 feet away for 20 seconds every 20 minutes.”
Third up for a benign cause is an ocular migraine, “a temporary visual disturbance such as an enlarging blind spot, flickering lights or zigzag lines,” says Dr. Wang.
“Ocular migraines can occur in one or both eyes and usually last for 15-20 minutes. They may or may not be followed by a headache.
“Ocular migraines are benign and do not require treatment, although it can mimic symptoms of more serious health conditions,” namely a transient ischemic attack, which is a medical emergency.
You shouldn’t try to self-diagnose between blurred vison from a benign ocular migraine and blurred vision from a TIA.
Better safe than sorry; see a doctor even if you think the cause is probably benign and especially if mitigation efforts don’t work.
Dr. Wang explains, “Ocular migraines usually occur in those under 40. If you are over 40, then it is important that your optometrist work with your primary care physician or neurologist to rule out conditions that are more serious.”
Dr. Wang
