Sihai network

Risk of parasite infection in Meitong

People love beauty, so for many short-sighted girls, they like to wear beautiful pupils of various colors to make themselves look different, but a girl's wearing contact lenses leads to parasite infection, which is terrible.

Xiaofan, a 14-year-old girl from Shenzhen, is now in grade two. In January this year, she used the Meitong contact lenses she bought online, which soon led to eye discomfort. After that, her vision declined sharply. Her left cornea was completely turbid, and her vision was only 0.05. She was diagnosed with a rare Acanthamoeba keratitis due to Acanthamoeba infection.

Doctors say the disease can lead to white spots, necrosis and even blindness. Xiaofan's illness is related to her buying poor contact lenses or wearing them irregularly. After treatment, Xiaofan's left eye inflammation has been controlled, but the subsequent corneal transplantation is still needed.

The harm of wearing contact lenses often

1. Decreased resistance of both eyes

Contact lenses will make the cornea unable to touch the air, and the eyes will attack a condition similar to the 'Plateau reaction' of the human body due to lack of oxygen, unable to metabolize normally and reduce the resistance.

2. Cause asthenopia and dry eye

Wear contact lenses for a long time, easily cause fatigue and even dry eye. Cause eye itching, foreign body feeling, multiple eye excrement, dry and astringent feeling, burning eyes and vague vision.

3. Cause eye allergy

Contact lenses absorb proteins, lipids, collagen, etc. in the tears, so that they deposit on the surface of the lens, breeding bacteria, corneal edema, corneal angiogenesis and allergic reactions.

4. Worn cornea, unable to be corrected

Contact lenses wear the cornea, which may lead to serious consequences of corneal epithelium falling or perforation. The concavity of some contact lenses is inconsistent with the convexity of cornea, and the cornea is worn irregularly, which leads to corneal ulcer and irreversible vision reduction. Even after treatment, white spots will be left on the cornea.

5. Form numbness of eye channel

Contact lenses attached to the eyeball for a long time will make nerve endings numb and cause corneal hypoesthesia. Many patients with ulcerative keratitis are still unaware.

6. Aging of cornea

If you start wearing soft contact lenses at the age of 20, 10 years later, the density of corneal endothelial cells is equivalent to that of 60 year old people, and you will not be able to receive any ophthalmic surgery, even if you have cataracts in your old age.

7. Nearsightedness deepens and affects image

It is very difficult for contact lenses to obtain the refractive power that is very consistent with myopia, which causes the degree to deepen year by year. For high myopia above 600 degrees, most eyes are bulging and dim, affecting the image.

It can be seen that often wearing contact lenses is still harmful to both eyes, so when the situation allows, we should not wear contact lenses every day as much as possible, and the best time to wear contact lenses is not more than 8 hours. Before wearing contact lenses, wash your hands thoroughly before wearing them, so as not to be infected by bacteria.