Friends who keep pets should have encountered the problem of red and swollen eyes of pets dogs. Many pet friends may not care much about the red and swollen eyes of dogs, but small Editors must remind dogs that red and swollen eyes may cause diseases. The following are the problems and analysis of red and swollen eyes of dogs compiled by experts.

1. Dog eye secretions: The veterinary term for eye secretions is epiphora, which is the most common symptom of eye diseases. Clear discharge is associated with tear drainage, although it can also be caused by tearing and inflammation (eg, conjunctivitis). If the discharge is cloudy or purulent (sticky, discolored), it is presumably an eye infection.

2. Eye swelling: Swelling of the tissue behind the eye can push the eye forward. The eyeball itself can also swell, pushing the eye out of the socket. Symptoms Bulging of the eye (compared to the other eye) Dilation of the gaze pupil (caused by nerve damage) Inability to close the eyelids

Possible causes: head injury, bleeding eye after a traffic accident, infection with tumor glaucoma. Any delay can cause the dog to lose its eyeball and should be seen by a veterinarian immediately.

3. Third eyelid problems: Some breeds (such as St. Bernard ) The third eyelid is normal, but in most dogs there may be a problem if the third eyelid suddenly becomes bright and prominent.

Symptoms of the third eyelid include: a whitish membrane protruding from the inner corner of the eye, usually with a black border, a pea-shaped reddish bump in the inner corner of the eye, a foreign body behind the third eyelid For the above symptoms, seek medical attention immediately. At the same time, it is necessary to rinse the eyes and keep the eyes moist.

4. Congenital eyelid and eyelash problems

The most common eyelid deformities are entorpion and extropion. The eyelid turns inward, causing the eyelashes to pierce the eye Inside, the eyelids turn outward, causing tears to pool in the pockets formed by the eyelids, drying out the cornea. A dog's eyelashes can grow in the wrong direction, and the eyelashes can rub against the eye, causing pain and redness. This condition is called inverted eyelashes

A similar problem is the so-called Distichiasis, where extra eyelashes on the eyelid margin rub against the eye. If left untreated, these ailments can cause serious damage and even blindness, but fortunately these eyelashes can be surgically removed.

5. Conjunctivitis: Painful inflammation of the conjunctiva, which may be caused by infection, scratching, congenital diseases, eyelid tumors, or irritants in the eye, such as dust or smoke.

Symptoms include: tearing and redness of the eye, and when the cornea becomes inflamed, the cornea becomes cloudy, even dark blue or completely opaque. Common in hepatitis, called (blue eye). The whites of the eyes then become severely congested, and eventually chronic inflammation can even cause the melanin membrane to spread from one end of the eye to the other. If the cause of inflammation can be treated in time, the disease can be terminated or slowed down, and the melanin film can sometimes be removed by delicate surgery.