Eyestrain

Eyestrain

Eyestrain, also known as asthenopia, is a common condition that occurs when the eyes become tired from intense use, such as staring at a computer screen, reading for extended periods, or driving long distances. It is not a disease but a symptom that can indicate an underlying issue with vision or eye health.

Causes

Eyestrain can be caused by a variety of factors, including:

• Prolonged use of digital devices: Staring at screens for long periods can lead to digital eyestrain, also known as computer vision syndrome.
• Poor lighting: Insufficient or excessive lighting can cause the eyes to work harder, leading to strain.
• Uncorrected vision problems: Refractive errors such as myopia, hyperopia, or astigmatism can contribute to eyestrain if not properly corrected with glasses or contact lenses.
• Improper viewing distances: Holding reading material too close or too far away can cause the eyes to strain.
• Stress and fatigue: General physical fatigue and stress can exacerbate symptoms of eyestrain.

Symptoms

Common symptoms of eyestrain include:

• Sore, tired, burning, or itching eyes
• Watery or dry eyes
• Blurred or double vision
• Headache
• Increased sensitivity to light
• Difficulty concentrating
• Feeling that you cannot keep your eyes open

Prevention

To prevent eyestrain, consider the following tips:

• Follow the 20-20-20 rule: Every 20 minutes, take a 20-second break and look at something 20 feet away.
• Ensure proper lighting: Use adequate lighting to reduce glare and harsh reflections on screens.
• Adjust your screen settings: Increase text size, adjust brightness and contrast, and reduce blue light exposure.
• Maintain proper posture: Sit at a comfortable distance from your screen, with your eyes level with the top of the monitor.
• Use corrective lenses: Ensure your prescription is up to date and consider lenses designed for computer use.

Treatment

If eyestrain persists, it is important to consult an optometrist or ophthalmologist for a comprehensive eye examination. Treatment may involve:

• Corrective lenses: Prescription glasses or contact lenses to correct refractive errors.
• Vision therapy: Exercises to improve eye coordination and focus.
• Artificial tears: Lubricating eye drops to relieve dryness.

Also see

• Computer vision syndrome
• Refractive error
• Dry eye syndrome
• Headache

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