What is visual fatigue and what causes it

If you experience visual fatigue in your life, you must pay attention and give your eyes more time to rest so as not to affect your vision. Visual fatigue is mostly caused by prolonged use of the eyes and external stimulation to the eyes.

1. It is caused by strong light stimulation, and manifests as photophobia and tearing.

2. Refractive error, caused by strabismus, manifests as bloodshot eyes after prolonged viewing.

3. Using the eyes for too long, such as reading for too long, watching videos for a long time, etc., will make the eye muscles overly tense, which will manifest as eye swelling. Long-term staring will result in unclear vision, accompanied by dizziness, headache, and even nausea, vomiting, and drowsiness.

4. External eye diseases, such as conjunctivitis, keratitis, blepharitis, etc., are easy to cause, manifested as increased eye congestion, increased secretions, foreign body sensation, itching and astringency, etc.

5. It is caused by inaccurate glasses or improper lenses, which manifests as visual fatigue that starts after wearing glasses, accompanied by dizziness, eye swelling, and nausea. The symptoms disappear after wearing glasses.

6. Caused by improper lighting in the working environment, or a shaky target when staring at it for a long time. Eye fatigue is significantly relieved when leaving the bad viewing environment.