Computer Vision Syndrome, also called digital eye strain; It is a group of eye and vision problems caused by long-term use of digital devices such as computers, tablets, smartphones and e-readers.
Basically, it is a condition caused by the stress on your eyes due to focusing on the screen for a long time.
What are the Causes of Computer Vision Syndrome?
Computer vision syndrome is caused by several factors related to how we interact with digital screens.
Poor Quality Monitoring Environment
Poor lighting, dim or overly bright lighting forces your eyes to constantly adapt. Glare, the reflection of lights or windows on the screen, makes it difficult to focus.
Incorrect Screen Positioning
Sitting too close to the screen forces your eyes to work harder to focus. The viewing angle is not set correctly, ideally your gaze should be slightly downward on the screen.
Eye Fatigue Due to Screen Use
Reducing blinking means we blink less when focusing on screens, which causes dry eyes. Constantly switching focus between screen elements tires out focusing muscles
Existing Vision Problems
Uncorrected nearsightedness, farsightedness, or astigmatism worsens CVS symptoms. Difficulty focusing at different distances may be worsened by screen use.
Remember, these factors often work together. For example, poor lighting can worsen glare and make focusing even more challenging.
What are the symptoms of Computer Vision Syndrome?
Computer vision syndrome can cause a variety of uncomfortable symptoms that affect your eyes, vision, and even your neck and shoulders.
Eye Disorder
- Dry eyes; This is a common symptom because reduced blinking when looking at screens causes the eyes to become dry and irritated.
- Eye Fatigue; Your eyes are tired and sore from the constant effort of focusing.
- Burning or Itching: Your eyes may become uncomfortable and irritated.
- Redness: Strained eyes may become bloodshot and appear red.
- Blurred Vision: Your vision may waver, appear blurry, or out of focus.
- Double Vision: In some cases, you may experience double vision.
- Headaches: Eye strain can often trigger headaches, especially behind the eyes or in the forehead area.
- Neck and Shoulder Pain: Poor posture while using devices can cause neck and shoulder tension or pain.
The severity of these symptoms may vary depending on the person and the duration of screen use. If you consistently experience any of these problems, it’s best to see an ophthalmologist to rule out underlying conditions.
Computer Vision Syndrome Diagnosis
Unlike some medical conditions for which specific tests are performed, computer vision syndrome is usually diagnosed through a combination of the following factors:
Patient History
An ophthalmologist will ask detailed questions about your symptoms, including:
- Type and severity of your eye condition
- How often and for how long do you use digital devices?
- Your work environment and display setup
- Your pre-existing vision problems
- Medications you take (some medications can contribute to dry eyes)
Eye Examination
A comprehensive eye exam is necessary to evaluate your overall eye health and rule out other possible causes of your symptoms. This may include:
- Visual Acuity Test: Measures your ability to see from various distances.
- Refraction Test: Determines your corrective lens prescription, if necessary.
- Slit Lamp Examination: Allows detailed examination of your eye structures.
- Dry Eye Test: Evaluates tear production and quality.
In most cases, a complete eye exam does not reveal any abnormalities specific to computer vision syndrome. But it helps make sure there are no underlying conditions causing your symptoms.
Diagnosing computer vision syndrome is based on your description of the symptoms and the absence of other eye problems upon examination. If your eye doctor confirms Computer vision syndrome, he or she will likely recommend lifestyle changes and ergonomic adjustments to address root causes and manage your symptoms.