Staring at a screen for a long time may increase your risk of CVS.

Nowadays, we have fully transitioned from the analog era to the digital era. Communication has also changed to almost all digital. In the past 3-4 years, the COVID situation has forced everyone to rely more on technology, such as working, studying, and communicating with people around you through communication programs. Many people may experience vision problems, such as eye pain or eye strain. This disease is called Computer Vision Syndrome (CVS).
What causes CVS?
It is a group of eye and vision symptoms caused by computer usage behavior for a long period of time. The longer the usage, the more severe the level of severity that occurs. It is caused by the following:
- The lighting in the room or the distance from the screen is not suitable.
- Light reflected from a computer screen
- Sitting posture and eye level when looking at the computer screen are not appropriate.
- Reduced blinking due to prolonged staring at a computer screen
What are the symptoms of CVS?
- Eye irritation, eye pain, eye strain or blurred vision
- Dry eye symptoms are usually temporary.
- Eye muscles become fatigued
- Musculoskeletal symptoms such as back pain , shoulder pain, headache , or neck pain
- Photophobia can occur due to different screen brightnesses. Adjusting the brightness too bright or too dark can cause eye discomfort. If left for a long period of time, it can cause photophobia.
Groups at risk for CVS
- People who work in graphics
- People who work in video editing
- People who work in writing
- Students who have to study online
- Office workers
How is CVS diagnosed?
The doctor will ask about daily behavior to assess risk factors for CVS. The patient may be asked to undergo an eye examination or vision test to plan appropriate treatment for the patient.
How to treat CVS
- The doctor may use artificial tears in the patient’s eyes to reduce eye irritation and dryness.
- Get your eyes checked. If you สนใจสมัคร? คลิกที่นี่เพื่อเริ่มต้น have abnormal vision, your doctor may recommend light-filtering glasses to help reduce light glare and make viewing the screen more comfortable.
- If the patient wears contact lenses, take a break to rest the eyes and then switch to glasses instead, as contact lenses can irritate and dry the eyes.
- It is recommended that patients blink frequently to keep their eyes moist.
How can CVS be prevented?
- Adjust your computer screen and screen brightness to a level that is suitable for your eyesight.
- Install a computer screen filter to reduce bright and reflected light, which can help reduce eye strain.
- Adjust the lighting in the room to be suitable.
- You should always rest your eyes while using the computer, taking breaks for about 15 minutes every 2 hours.
- Visit an ophthalmologist to have your vision measured and receive preventive advice from your doctor.