Double vision
Overview
Double vision, also known as diplopia, is a visual condition where a person sees two images of a single object simultaneously. This symptom occurs when the eyes are unable to align properly, causing overlapping or side-by-side duplicate images that can significantly impact daily activities and coordination.
Common Causes
Double vision can occur when your eyes don't work together properly, often due to eye muscle weakness or strain from prolonged screen time. It may also result from fatigue, stress, or consuming too much alcohol. Sometimes it happens when your eyes are dry or when you need an updated eyeglass prescription. Certain medications and blood sugar fluctuations can also temporarily affect your vision coordination.
Severity Levels
Mild: You may notice occasional double vision that comes and goes, particularly when tired or focusing on distant objects. The double images are usually faint and may resolve with blinking or covering one eye.
Moderate: Double vision occurs more frequently and persists for longer periods, making activities like reading, driving, or walking stairs challenging. You may need to close one eye or turn your head to see clearly.
Severe: Constant double vision significantly interferes with daily tasks and mobility. You may experience difficulty with balance, frequent headaches, and feel unsafe performing routine activities without assistance.
Medical Attention
Seek immediate medical attention if double vision appears suddenly, is accompanied by severe headache, weakness, difficulty speaking, or drooping eyelids. Contact your healthcare provider promptly if the condition persists for more than a few hours, worsens over time, or interferes with your ability to drive or perform daily tasks safely. Emergency care is especially important if you have a history of diabetes, high blood pressure, or recent head injury.
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