What is dry eye?

  With the popularity of computers and cell phones, many “computer people” and white-collar workers are experiencing dry eye discomfort and even suffer from dry eyes. But many people do not go to the hospital, but directly buy eye drops to relieve. In fact, many eye drops contain preservatives, which may aggravate the symptoms. The correct approach is to go to the hospital first to find out if it is dry eye, and then treat the cause of dry eye according to the cause of the disease.
  I. What is dry eye?
  Dry eye is a common ocular surface disease, which is a general term for a large group of diseases caused by any cause of reduced tear fluid or abnormal composition or dynamics in the tear fluid, resulting in dryness, foreign body sensation, visual fatigue or vision loss. 
  Second, who are more likely to get dry eye?
  1, the elderly, peri-menopausal and post-menopausal women
  2, often engaged in concentration work or activities, such as long-term use of computers, long hours of reading or work in front of the fluorescent screen
  3, late night workers (extended exposure time of the eye surface)
  4, living or working environment: air conditioning, smoke, high diffusion or dry air (which is often a trigger to aggravate the symptoms)
  5, long-term eye drops with antibiotics, antiviral and other eye drops
  6.History of eye surgery (such as LASIK, cataract surgery, etc.)
  7, suffering from abnormal thyroid function, rheumatoid arthritis and other autoimmune diseases
  8, long-term use of antihypertensive drugs, antidepressants and contraceptives and other drugs.
  Third, how do I know if I have dry eye?
  If you have one of the following symptoms, then you should be alert: 1.
  1. dry eye sensation 2. foreign body sensation in the eye 3. visual fatigue 4. burning sensation in the eye 5. photophobia
  If you go to the ophthalmologist in time, the doctor will not only examine your eyes, but also do some tests for you.
  (1) Schirmer test: also known as the tear secretion test, is to check the amount of tear secretion.
  (2) BUT: also known as tear film rupture time, is to check whether the tear film is stable.
  3) Fluorescein staining 4) Tear river height
  Other special specialized tests, such as corneal topography, tear osmolarity, lactoferrin assay, blot cytology, etc.
  The doctor will decide what kind of test to do according to your condition and judge the severity according to the test results.
  What should I do if I have dry eye? How to treat?
  The first step is of course to go to the doctor, who will make a treatment plan suitable for your situation. The main treatment measures are as follows.
  1.Eliminate the causative factors: you should avoid long-term use of computers, staying up late at night working, etc.
  2.Apply artificial tears to the eyes: such as sodium glassate eye drops, Tearan, Siran eye drops, etc.
  3.Promote the secretion of tears
  4.Anti-inflammatory and immunosuppressive treatment
  5.Tear punctal peg implantation, safe, effective, reversible, can be combined with other treatments.
  6.Surgical treatment: for very serious dry eye, drug treatment is completely ineffective can be surgical treatment, surgery is more complex.
  7.Other: If it is related to infection factors, oral or local application of antibiotics, etc. can be used.