Why do your eyes itch?
Eye itching is a common visual discomfort, which many people have experienced in their daily life. Eye itching may be caused by a variety of reasons, including allergic reaction, eye fatigue, dryness, eye infection, etc. In the next article, I will elaborate on why the eyes itch from four aspects.
Anaphylactic reaction
The main reason for many people's itchy eyes is allergic reaction. Allergic conjunctivitis is a common ocular allergic reaction, usually caused by pollen, dust mites, animal hair, mold and other substances. After contact with eyes, these substances will stimulate the immune system to release a large amount of histamine, resulting in itching, redness, swelling, tears and other symptoms of the eyes. For eye itching caused by allergy, try to avoid contact with allergen and use antihistamine eye drops to alleviate symptoms.
In addition to allergic conjunctivitis, with the emergence of various new foods in recent years, food allergy has also become one of the important reasons for eye itching. Food allergic conjunctivitis is usually accompanied by digestive system symptoms, such as diarrhea, vomiting, etc. At the same time, the eyes will itch and redden. If it is suspected that the eye itch is caused by food allergy, it is recommended to seek medical advice in time and conduct food allergy test.
In addition, many cosmetics, eyedrops, spectacle frames and other items contain irritating chemicals, which may also lead to eye allergy. When using these articles, choose non irritating products, and pay attention to changing the glasses frame regularly.
Eyestrain
If you stare at the screen of computer, mobile phone and other electronic products for a long time, your eyes are easily tired and itchy. This is because long-term eye use will cause evaporation of water on the eye surface, resulting in dry eyes and irritation. In addition, long-time screen radiation will also cause certain damage to the eyes.
The methods to prevent eye fatigue and itching include taking regular rest, looking into the distance for 10 to 20 minutes every hour, applying warm water to the eyes, and keeping enough sleep. At the same time, the use of anti radiation glasses can effectively reduce the damage of electronic products to eyes.
dry
The dry environment is also a factor that causes eye itching. When the air humidity is low, the eyes are easy to feel dry and uncomfortable, and then itchy. In dry seasons or environments, keeping indoor air humidity, frequently washing eyes, dropping artificial tears or moisturizing eyedrops, and wearing dust-proof glasses will help reduce the dryness and itching of eyes.
In addition, upper respiratory tract infections such as rhinitis and sinusitis may also lead to dry and itchy eyes, because the tear discharge channel is connected to the nasal cavity. If this happens, treat the upper respiratory tract infection in time, and the corresponding eye symptoms will also be improved.
Eye infection
Eye infection is also one of the causes of itchy eyes. Common causes of eye infection include conjunctivitis and keratitis caused by viruses, bacteria and fungi. These infections can cause itching, redness, swelling, increased secretion and other symptoms due to eye irritation.
For itching caused by eye infection, seek medical advice in a timely manner, and select appropriate antibiotics or antiviral treatment according to the etiology. At the same time, pay attention to personal hygiene, avoid cross infection and keep eyes clean.
In conclusion, eye itching may be caused by allergic reaction, eye fatigue, dryness and eye infection. For itchy eyes, we should maintain good hygiene habits, avoid contact with allergens, often rest the eyes, use artificial tears or drugs in some cases, and seek medical advice in a timely manner.
