Dry eye is caused by a small amount of tears. People with dry eyes often say that their eyes are tired easily, which makes reading and watching TV difficult. The reason for these difficulties is that when the work requires concentration, the frequency of instantaneous eyes is significantly reduced. Dry eye with tear deficiency, that is, dry eye caused by reduced tear secretion, excessive evaporation and accelerated drying of tear film with normal eye surface. The common symptoms of dry eye are dry eye and foreign body sensation. Other symptoms include burning, itching, photophobia, red pain, blurred vision, fatigue, sticky silk secretion and so on.

Patients with dry eye have symptoms such as dryness, foreign body sensation, pain, photophobia, burning sensation, itching sensation, red eyes, visual fatigue, blurred vision, vision fluctuation, itching, tingling, dryness, discomfort, foreign body sensation, visual fatigue, heavier eyelids, irritability, and difficulty in concentration. Patients with severe dry eye can lead to a significant decline in vision, affecting work and life, and even blindness. Conjunctiva will become dull, thick, edema, bleeding, sometimes wrapped in secretions, in more serious cases, conjunctiva may be keratinized. When fluorescein is used for corneal staining detection, punctate collection will occur.

We should pay attention to our spirits and not be particularly tired or nervous. Psychological changes will lead to some hormonal changes, which is one of the main causes of dry eye. We should use our eyes reasonably, don't overwork, and look at electronic products such as mobile phones, computers and iPad for a long time. Excessive use of eyes will affect the function of tear film on the surface of eyes, leading to dry eye. Wearing contact lenses and doing corneal refractive surgery may cause dry eye. Therefore, we should choose different contact lenses and myopia surgery according to our own situation.

Many people are willing to do outdoor sports. In strong sunshine and very dry environment, we should also do a good job of protection. For example, wearing sunglasses, wind-proof glasses and moisture-proof glasses can reduce the occurrence of dry eye during outdoor sports. At the same time, it can also improve the humidity of your living environment, such as a humidifier. In the dry season in winter, humidifying the room will also improve the situation of dry eye. Try to scribble as little as possible. Eye drops contain preservatives and various therapeutic drugs. These should be used for indications, instead of going to the pharmacy often. If your eyes are uncomfortable, you can buy medicine at will. This is completely inappropriate and can easily lead to dry eye.