Blurred vision that comes and goes
Overview
Blurred vision that comes and goes is a temporary visual disturbance where objects appear unclear, hazy, or out of focus intermittently rather than continuously. This fluctuating symptom can affect one or both eyes and may vary in severity throughout the day.
Common Causes
Common causes include fluctuating blood sugar levels, which can temporarily affect the eye's ability to focus properly. Eye strain from prolonged screen time or reading can also lead to intermittent blurring as your eye muscles become fatigued. Dry eyes, often caused by environmental factors or reduced blinking, may create temporary vision disturbances. Changes in blood pressure, dehydration, or fatigue can also contribute to episodes of blurred vision that resolve on their own.
Severity Levels
Mild: Episodes of slight blurriness that last only minutes and don't interfere with daily activities like reading or driving. Vision clears completely between episodes with no lasting effects.
Moderate: More frequent blurry episodes that last longer and may cause difficulty with detailed tasks like computer work or reading small print. You might need to blink frequently or rub your eyes to clear your vision.
Severe: Frequent or prolonged episodes of significant blurriness that interfere with normal activities and may be accompanied by other symptoms like headaches, eye pain, or difficulty seeing at night. This level requires prompt medical attention.
Medical Attention
Seek immediate medical attention if blurred vision is accompanied by severe headache, eye pain, sudden vision loss, or symptoms of stroke like weakness or difficulty speaking. Contact your doctor within a day or two if episodes become more frequent, last longer, or interfere with daily activities like driving or reading. Also consult a healthcare provider if you experience additional symptoms such as eye redness, halos around lights, or if you have diabetes or high blood pressure.
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