I. What is dry eye?
Dry eye, also known as corneoconjunctival dryness, is a syndrome of dry eyes due to insufficient quantity or poor quality of tears. The most common symptoms of dry eye are dryness and foreign body sensation in the eye. Normal tears form a tear film on the surface of the eye, which is divided into three layers from the outside to the inside: lipid layer, aqueous layer and mucin layer, and any abnormality in any layer may lead to dry eye.
Second, the common causes of dry eye disease
1, suffering from dry syndrome and other systemic system diseases.
2, older, sex hormone levels decline, resulting in reduced tear secretion.
3, engaged in computer work or like to surf the Internet, play computer games, eyes look at the monitor for a long time, the number of blinks reduced, tear evaporation fast.
4, work environment for years with air conditioning dry environment, the eyes will naturally dry.
5.Wearing contact lenses for a long time.
6, after various eye surgery.
Third, how to prevent dry eye disease
1, dry winter indoor or summer air conditioning room placed in the atomized humidification device to increase air humidity.
2, long-term computer users, should pay attention to the computer screen lower, and upward tilt, so that the gaze will reduce the eyelid crack, tear evaporation reduced, shorten the continuous use of time, regular rest. Also pay attention to blink more.
3. For those who wear contact lenses, they should be removed at night to clean and disinfect them, and use some moisturizing eye drops.
4. Eyeliner and double eyelid surgery can destroy the glands that secrete tear components and cause dry eye. So try to avoid receiving such surgery.
Fourth, the treatment of dry eye
1.Tear component replacement therapy: artificial tears are the main medicine, and for severe patients, preservative-free artificial tears should be used.
2.Local massage and hot compress of the eyelid can promote tear secretion.
3.Temporary or permanent tear punctal embolization to reduce tear drainage.
4.Oral medications that promote tear secretion, such as Bixupine and Zhengrui, can promote tear secretion of patients.
5.Severe dry eyes need surgical treatment, mainly using autologous free submandibular gland transplantation.