With age, many older people will find their eyes more and more bad. Read the newspaper or watch TV and cell phone not a moment will feel dry eyes, sore eyes, can not help but want to use their hands to rub their eyes. These problems are in fact and eye fatigue has an inseparable relationship.
The three main causes of visual fatigue in the elderly:1, overuse of the eyes
Presbyopia is a natural phenomenon of a certain age, many older people will find that things are very fuzzy, especially when looking at things near. When gazing at near objects, in order to keep the image clear, the eye will be adjusted so that the lens becomes thicker and the refractive power is stronger, and when the power of adjustment or collection is overused, visual fatigue will occur. Typically, after the age of 40, eye function begins to decline significantly, and visual fatigue is more likely to occur.
2, the elderly physical factors
People after 40 years of age, the body began to gradually aging, the body function is also gradually decline. The overall digestive ability of the elderly declined, easily caused by the body's poor absorption of nutrients, resulting in malnutrition. The regulation of the eyes also requires better physiological function of the body, the eyes of the poor nutrition of the elderly, the incidence of visual fatigue will be higher.
3, environmental factors
Often the elderly to save money on electricity, home lighting is relatively insufficient, accustomed to using the eyes in a dimly lit environment, such as watching TV in a dark room. When the reading field of vision luminance distribution and the surrounding background light intensity difference is too large, the eyes need to be adjusted to change the size of the pupil to adapt to the light, can also be induced by visual fatigue.
These 4 points can help alleviate eye fatigue1, reasonable eye, strengthen physical exercise
Elderly people should pay attention to the combination of work and rest, do not long time overuse of the eyes. When reading books and newspapers, watching TV, watching cell phones, pay attention to often relax the eyes. In addition, the elderly can participate in sports activities, such as jogging, walking, playing tai chi, square dance, etc., also helps to enhance physical fitness, maintain eye adjustment ability.
2, wear presbyopia in time
Once the elderly find it hard to see things close up or even blurred, they should wear presbyopia glasses as soon as possible. Should be through a professional optometry and to professional optical store to buy the right glasses, otherwise it will exacerbate the occurrence of visual fatigue.
3, pay attention to the light environment
Living environment is too bright or too dark can easily lead to visual fatigue. Try to keep the intensity of light in the room consistent within a certain range. For indoor lighting, try to use a softer light source, which is more helpful in preventing visual fatigue.
4, appropriate nutrition
For the prevention of eye problems in the elderly, it is necessary to pay attention to the eye nutrition. Elderly people should do a balanced diet, can eat more soy products, fish, milk, green vegetables and fresh fruit and other foods, if possible, but also through the supplemental nutrients, can better ensure that the eye muscle activity of the energy required to promote blood circulation in the eye, to protect the eye health, prevention of visual fatigue.