What is corneal pannus symptom

summary

The eye is the window of the soul, but if you don't pay attention to the hygiene of the eyes, it's easy to get sick. A colleague has corneal pannus because he always looks at the computer. I'd like to explain the symptoms of corneal pannus to you.

What is corneal pannus symptom

Symptom 1: corneal pannus is caused by corneal hypoxia, trauma, inflammation, and trauma to the corneal elastic layer and stromal layer. Because both of them can not be self repaired and regenerated, the general turbid area can not be subsided. There is no blood vessel on the cornea, but because of hypoxia (such as wearing contact lenses), the cornea can not be in direct contact with the air, and the oxygen is reduced Less, so the conjunctival blood vessels will grow into the cornea to supply oxygen to ensure the normal activity of the cornea. It looks like the eyes have a thin layer of fog, some turbid, can not see clearly the feeling of the eye.

Symptom 2: blood vessels generally grow into the 23th layer of the 5 layers of cornea, including the pre elastic layer and stroma layer. Foreign blood vessels will cause damage to the cornea, and pannus will also occur. At this time, if the cornea is in contact with the air, the corneal blood vessels will stop growing, but will not subside. Due to the entry of blood vessels and the generation of pannus, the corneal diopter will change, and the vision will be improved It's damaged.

Symptom 3: if the cornea is still lack of oxygen at this time, the blood vessels will grow to the pupil and wrap the whole cornea. At this time, it will lead to blindness. Although there are no blood vessels on the cornea, it is full of rich nerve endings. The invasion of foreign bodies will lead to the excited state of the corneal nerve, so the eyes are easy to fatigue, and at the same time, it will also cause the decline of vision again, and the corneal pannus is in fact It's a loophole in the human tissue repair system.

matters needing attention

Trachoma usually needs to be treated in time. At the same time, if you wear contact lenses, pay attention not to wear too long, it is best not to exceed 8 hours a day, and it is best to use them alternately with frame glasses. Do not eat stimulating food, and pay attention to eye hygiene, keep a good mood, but also pay attention to eat some fresh fruits and vegetables