Technological advances and the growing dependence on electronic devices in daily life have led to the emergence of new health challenges, including Computer Vision Syndrome (VIS). This term refers to a set of ocular and visual symptoms that can be experienced by people who spend long periods in front of computer screens, mobile phones, tablets or other digital devices. SVI has become an increasingly common problem in modern society, especially in those who work in office environments or who make extensive use of digital technology in their daily lives.
Origin and causes of Computer Visual Syndrome
VIS has its origin in the continuous and prolonged visual effort that involves staring at electronic screens. Digital devices emit blue light, which can cause eye strain, dry eyes, focusing problems, blurred vision, eye irritation or redness, among other symptoms. Additionally, the tendency to blink less when looking at digital screens contributes to dry eyes and feelings of tired eyes.
Another factor that contributes to SVI is the need to constantly adjust the focus of vision when alternating between the screen and other distances, which tests the eye's ability to accommodate. In addition, incorrect body posture when using electronic devices, such as hunching over the keyboard or maintaining poor ergonomics, can also trigger visual discomfort.
Risk factors and affected population
SVI It affects a wide range of the population, from children and adolescents to adults in the workplace. However, there are certain factors that can increase the risk of developing this syndrome, such as:
- Working long hours in front of digital screens.
- Not respecting the recommended visual breaks.
- Not maintaining an adequate distance from the screen.
- Working in environments with inadequate lighting.
- Not using filters or adequate protection to reduce blue light emitted by screens.
Likewise, people who already have previous visual problems, such as myopia, hyperopia or astigmatism, may experience greater sensitivity to the effects of SVI.
Symptoms and effects of Computer Vision Syndrome
SVI symptoms can vary in intensity and present progressively as exposure to digital screens increases. Some of the most common effects of Computer Vision Syndrome include:
1. Eye fatigue
Eye fatigue manifests itself as eye fatigue, a feeling of heaviness in the eyes, dry and red eyes, headache, and difficulty focusing clearly. This symptom can interfere with the person's productivity and general well-being.
2. Blurred vision
Blurry vision is one of the most common symptoms of SVI and can make it difficult to read, work in front of screens, or any task that requires clear vision. This effect can be temporary or persistent, depending on the duration and intensity of exposure to digital screens.
3. Headaches and migraines
Prolonged exposure to digital screens can trigger headaches, migraines and general discomfort. Flickering light from screens, visual fatigue and eye strain are factors that contribute to this type of discomfort.
4. Dry eyes
Dry eyes is another common effect of SVI, caused by the reduction in blinking rate when staring at digital screens. Lack of lubrication in the eyes can cause irritation, itching, foreign body sensation and eye redness.
5. Sleep problems
Exposure to blue light emitted by digital screens can alter the circadian rhythm and affect the quality of sleep. Using electronic devices before bed can make it difficult to fall asleep and reduce the quality of your night's rest.
6. Difficulty focusing
VIS can cause difficulty focusing correctly, which can interfere with the ability to read, work on the computer, or perform other activities that require clear, accurate vision. This alteration in focus can be temporary or persistent.
Prevention and treatment of Computer Vision Syndrome
To prevent or alleviate the effects of SVI, it is important to adopt some measures and good practices that promote visual health in the digital environment. Some recommendations include:
1. Visual breaks
Take periodic breaks while using electronic devices to rest your eyes and reduce eye fatigue. The "20-20-20" rule can be helpful: every 20 minutes, look at a distance of at least 20 feet for 20 seconds.
2. Adjusting the lighting
Set the device's screen lighting appropriately to reduce glare and eye strain. Avoid working in environments with excessive or insufficient light that may strain your eyes.
3. Use of blue light filters
Use screen protectors or glasses with blue light filters to reduce exposure to this radiation that can alter the sleep cycle and cause eye fatigue. These filters help reduce the penetration of blue light into the eyes.
4. Ergonomics and proper posture
Maintain an ergonomic posture when using electronic devices, with the screen at eye level and an appropriate distance to reduce tension in the neck and shoulders. Use adjustable braces or supports to maintain a comfortable and healthy position.
5. Regular visits to the ophthalmologist
Perform periodic eye checkups with a specialist to detect and correct any visual problems that may aggravate the effects of SVI. The ophthalmologist can recommend specific treatments, such as the use of glasses with blue light filters, hydrating drops or visual exercises.
Conclusion
Computer Vision Syndrome is an increasingly common health problem. more relevant in today's society, due to the widespread use of electronic devices at work, study and leisure. To prevent the negative effects of SVI and take care of visual health, it is essential to adopt preventive measures and follow good practices in the use of digital screens. Raising awareness about the risks of SVI and the importance of maintaining adequate visual health are key to promoting well-being in the digital age.