1.What is visual fatigue?
Visual fatigue is a common disease in ophthalmology nowadays. Patients have a variety of symptoms, the common ones include unsustainable close work, pain around the eyes and orbits, blurred vision, dry eyes and tearing, and in severe cases, headache, nausea and vertigo. It is not an independent disease, but a group of fatigue syndrome caused by various reasons.
2.The causes of visual fatigue?
The common ones are.
(1) Causes of the eyes themselves.
Such as myopia, hyperopia, astigmatism and other refractive errors, adjustment factors, eye muscle factors, conjunctivitis, keratitis, the glasses worn are not appropriate, etc..
(2) Systemic factors.
Such as neurasthenia, physical overwork, hysteria or menopausal women.
(3) Environmental factors.
(3) environmental factors: such as insufficient or too strong light, uneven or flickering light source distribution, small, thin or unstable target to gaze at.
Eye soreness, eye swelling, eye pain, eye dryness, tearing, itching, foreign body sensation, inability to read books or computers for a long time, etc. Visual fatigue has become a common occupational disease of white-collar workers. Overuse of the eyes is one of the root causes of visual fatigue. Adequate rest and reasonable use of the eyes will relieve visual fatigue. If the symptoms of visual fatigue still cannot be relieved after the eyes have been fully rested, you should be alert to the fact that visual fatigue has concealed the real eye disease, and you need to consult a professional ophthalmologist in time to find out the problem can be treated in time.
3, how to relieve visual fatigue?
(1) To rest regularly.
Such as every 2 hours of reading or using the computer to rest 10 to 15 minutes, at this time can be far out of the window landscape, or turn the eyeballs, do eye exercises, etc., as long as not concentrated in the near eye, have a rest effect.
(2) Pay attention to moisturizing the eyes and blinking more.
When using a computer, it is best to maintain a lower perspective of 15 to 20 degrees, which helps reduce the area of eye exposure to reduce the evaporation of water from the surface of the eye. Avoid working seats in the air conditioning vents, you can also place tea near the seat to increase the surrounding humidity.
(3) Regular exercise.
Ball activities are recommended, such as table tennis, badminton, soccer, golf, etc. When the eye follows the target, the constant relaxation and contraction of the ciliary muscle, as well as the synergistic action of the extraocular muscles, can improve the amount of blood perfusion in the eye and promote eye metabolism, thus reducing eye fatigue.
(4) Pay attention to nutritional balance.
Eat more nutty foods. To eat more calcium-rich, protein-rich food, avoid partial food, control the sweet food. Because the metabolism of sugar, must rely on vitamin B1, sugar if too much intake, will cause vitamin B1 deficiency, and easy to develop optic neuritis. Eat more nuts, chew more, can strengthen eye muscle activity, improve eye blood circulation, reduce eye fatigue.