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Computer Vision Syndrome
Understanding About Computer Vision Syndrome
Computer Vision Syndrome (CVS), also known as Digital Eye Strain, refers to a group of eye and vision-related problems that result from prolonged use of digital screens such as computers, smartphones, and tablets. The strain on the eyes caused by staring at screens for extended periods can lead to a range of discomforts.
Types of Computer Vision Syndrome:
This type involves tiredness and discomfort in the eyes caused by continuous focus on a screen. It may be accompanied by a burning sensation or difficulty focusing, especially after extended periods of screen time.
This is the general discomfort caused by screen exposure, characterized by blurry vision, difficulty focusing between near and distant objects, and sensitivity to light. It’s worsened by factors like improper lighting, screen glare, or incorrect screen settings.
Prolonged screen use can reduce the frequency of blinking, leading to dry, irritated, or gritty eyes. This type of CVS is common among those who spend hours in front of digital devices without sufficient breaks.
Poor ergonomics, such as sitting too close or too far from the screen, can cause strain not only on the eyes but also on the neck, shoulders, and back. This can result in physical discomfort alongside vision-related issues.
Straining the eyes over long periods while using screens can lead to tension headaches or migraines. These headaches are often caused by excessive focus or poor screen settings, such as low contrast or small font size.
Symptoms:
Feeling of tiredness or fatigue in the eyes after long periods of screen use.
Staring at screens can reduce blinking, leading to dryness and irritation in the eyes.
Prolonged screen time can cause tension headaches due to the constant focus and strain on the eyes.
Difficulty focusing on the screen or seeing clearly, especially after prolonged use.
Poor posture while using digital devices can result in strain on the neck and shoulders, often linked to eye discomfort.
The eyes may become more sensitive to bright light, particularly after long hours of screen use.
Treatment:
- Prescription Glasses: Special glasses designed for computer use can help reduce eye strain. These may include anti-reflective coatings to minimize glare.
- Blue Light Filtering Glasses: These glasses filter out blue light emitted by screens, potentially reducing eye discomfort.
- Ambient Lighting: Ensure that the lighting in your workspace is adequate. Avoid harsh overhead lighting and glare from windows.
- Positioning: Position your screen to avoid glare from lights and windows.
Remind yourself to blink regularly, as people tend to blink less when staring at screens. This keeps the eyes moist.
Take regular breaks from screens and limit overall screen time when possible.
If symptoms persist, seeing an optometrist or ophthalmologist for a comprehensive eye exam is essential. They can provide tailored advice and solutions.
Precautions:
Every 20 minutes, look away from the screen at something 20 feet away for at least 20 seconds to give your eyes a break.
Ensure your workspace has proper lighting to reduce glare and reflections on the screen.
Blinking helps moisten the eyes and prevents dryness. Make a conscious effort to blink more often, especially during long periods of screen use.
Increase text size, reduce screen brightness, and adjust contrast to make it easier to read and reduce strain.
Before Surgery
Before undergoing corrective eye surgery, such as LASIK, to address refractive errors contributing to eye strain, your eye doctor will conduct a comprehensive eye exam. This includes measuring the shape and thickness of your cornea, checking for refractive errors, and ensuring you are a good candidate for surgery. You will be advised to stop wearing contact lenses for a few weeks prior to surgery, as they can alter the shape of the cornea. Additionally, you may need to stop using certain medications before surgery, and you’ll receive detailed instructions on how to prepare.
During Surgery
After Surgery
After the surgery, your vision may be blurry, and your eyes may feel dry or irritated for a few hours. The doctor will provide protective goggles to wear and prescribe eye drops to prevent infection and aid healing. You’ll need to rest your eyes and avoid rubbing them, as this can interfere with the healing process. Most people experience improved vision within 24 to 48 hours, but full recovery may take several weeks. You will need to attend follow-up appointments to monitor healing and ensure optimal results.
Post-surgery, it’s important to avoid strenuous activities, swimming, or exposure to dust and irritants for a few weeks. Complete recovery varies, but most people can return to normal activities within a few days after surgery.
Isha Netralaya
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