Dry astringency is not refreshing, misty steaming is not comfortable, but due to the lack of water semen failure, do not wait for dry light damage. Do you lack water in your eyes
What will be the performance of "eye water shortage"? Some people may have dry eyes and occasionally tingling sensation; some people may have fluctuating vision. When they just open their eyes, they feel that they can see clearly. After staring for a few seconds, they become blurred and need to blink again; some people feel that there is sand in their eyes, which is very uncomfortable; some people may have red eyes and secretions. Increased performance, etc. Once your eyes appear these untimely, you should be on high alert. This may be the signal your eyes send to you for help!
What is dry eye? Dry eye refers to any cause of abnormal quality or quantity of tear or dynamic abnormalities, resulting in the decline of tear film stability, and accompanied by eye discomfort and (or) the characteristics of ocular surface tissue lesions. Generally speaking, the lacrimal sac secretes tears. With the rotation of the eyes, the tears spread to the whole eye surface, forming a protective film and moistening the eyes. Tears are mainly composed of oil, water and mucoprotein. Any change in the quantity and quality of the components may cause the stability of this film to decline, resulting in dry eye symptoms.
Tear structure diagram
At present, dry eye can be divided into two types: insufficient tear production type and excessive evaporation type. The former is dry eye caused by lacrimal gland disease or poor function, i.e. water deficient dry eye, which is commonly referred to as lacrimal water shortage; the latter is of evaporation type, mainly referring to meibomian gland dysfunction, which is generally referred to as the change of oil quality or quantity. Who do you like? 1 75% of people over 65 years old have dry eye. Because the production of tears in the elderly decreases with the increase of age. The decrease of tear secretion makes the eyes easy to be stimulated, sometimes it will cause severe lacrimal reaction, i.e. overflow of tears.
2 computer users. Stare at the screen for a long time, lack of normal blinking, and blinking can make tears wet eyes better. More than 90% of the people who work more than 3 hours in front of the computer every day have eye problems.
3 some disease factors. Such as rheumatoid arthritis, diabetes, thyroid abnormalities, asthma, cataracts, glaucoma and lupus erythematosus.
4. Drug factors. Some drugs can reduce tear secretion and cause dry eye symptoms, such as antidepressants, antihistamines, diuretics, antihypertensive drugs, anesthetics, anti ulcer drugs, etc.
5 people wearing contact lenses. Contact lens is floating on tears, wearing contact lens will accelerate the evaporation of tears. The discomfort and tolerance of wearing contact lenses are poor, mainly caused by dry eyes, especially soft contact lenses can quickly evaporate tears, produce foreign body feeling, and make protein precipitate on the lenses. On the other hand, xerophthalmia can reduce the corneal anti injury ability of people wearing contact lenses, making contact lenses easier to scratch the cornea.
6 environmental factors. Smoke, ultraviolet, air pollution, high temperature, air conditioning and dry climate can increase the evaporation of tears, leading to dry eyes.
Women in menopause, pregnancy, lactation and oral contraceptives. Dry eye symptoms may occur due to changes in hormone levels.
Use some eye drops for a long time. Such as vasoconstrictive eye drops, it is also easy to form dry eyes.
Meibomian gland dysfunction and lacrimal puncta obstruction. Make tear secretion and eduction decrease, cause dry eye disease.
The cause of dry eye disease is very different from each other, so it needs objective auxiliary examination to help judge. Two patients with dry eyes may have different causes. One is lack of oil, the other is lack of water, so their treatment is different. Since the lack of tear water and the change of grease may cause dry eyes, it is necessary to understand the causes of dry eyes.
We can make a more objective judgment through several simple and feasible experimental methods: 1. Tear secretion experiment: put the Schirmer test strip into 1 / 3 of the lower eyelid, and the observation time is 5 minutes. The normal tear secretion test was 10-15mm, & lt; 10mm was low secretion, and & lt; 5mm was dry eye.
2. Tear film rupture time: drop a little fluorescein sodium on the surface of the eye, color the tear film formed by tear water, and observe the tear film rupture time under the slit lamp microscope. Generally speaking, the & lt; 10s is abnormal, indicating that the quality of tear water is not good and the evaporation is too strong.
3. With the photo taking function of meibomian gland in keratograph, we can see the shape of meibomian gland directly. The normal meibomian gland is like a comb, arranged orderly one by one, opening at the root of eyelash and secreting oil. Once its opening is blocked, the lipid in the glandular tube cannot be discharged normally. At first, the meibomian gland becomes thicker and tortuous. Then, with the aggravation of the blockage and the chronic inflammatory effect, the meibomian gland secreting the oil undergoes irreversible atrophy, resulting in the dry eye with strong evaporation (dry eye with lack of oil).
Treatment principle dry eye is a chronic ocular surface disease, early detection, early treatment! 1. Follow the doctor's instructions, and encourage the patients to adhere to the medication. According to the type of dry eye, choose eye drops. 2. Keep the tear eyes, wear silica gel eye mask, wet chamber mirror or small points of lacrimal embolization. 3. Traditional Chinese medicine massage and acupuncture 4 personal care and massage
Develop good eye habits, pay attention to eye hygiene, avoid factors such as reading and using electronic products for a long time, and avoid staying in smoke, dust and air conditioning environment for a long time. People with ametropia should wear appropriate degree, if contact lenses, better nursing solution should be selected. For dry eyes caused by long-term use of computer and other video screens, keep the correct posture, with the line of sight slightly downward, the distance between the eye and the screen is 40-70cm, rest for 10-15 minutes after 1-2 hours, and look at the distance. Usually can eat the food rich in vitamin A.
Source: comprehensive Xiamen news center and network
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