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Got keratitis to have what apparent symptom expression?

What are the obvious symptoms of keratitis? Keratitis is a serious eye disease, which can lead to blindness. There are many causes of keratitis, so what are the symptoms of keratitis? Let's take a look at the detailed introduction of experts.

What are the symptoms of keratitis? Experts said that in addition to paralytic keratitis, most patients with keratitis have strong inflammatory symptoms, such as pain, shyness, tears and blepharospasm. This is due to the reflex orbicularis oculi muscle contraction and excessive tear secretion caused by inflammatory stimulation of the trigeminal nerve endings in the cornea. The cornea is an avascular tissue, but the adjacent area is rich in blood vessels (the blood vessels of limbus corneae and iris ciliary body). When inflammation affects the adjacent tissue, there is congestion and inflammatory exudation. Therefore, patients with keratitis not only have ciliary congestion, but also iris congestion. The latter showed iris discoloration and pupil narrowing.

The exudate comes from the same source. Serious patients with bulbar conjunctiva and even eyelid edema will occur. Because of the congestion of corneoscleral limbus, the white blood cells move to the corneal focus and the corneal infiltration occurs. When the keratitis to the degenerative stage, the clinical irritation symptoms are greatly reduced.

Keratitis will inevitably affect vision more or less, especially when inflammation invades the pupil area. The corneal scar formed after ulcer healing not only blocks the light from entering the eye, but also changes the corneal surface curvature and refractive power, making the object unable to focus on the retina to form a clear image, resulting in decreased vision. The degree of vision involvement depends entirely on the location of the scar. If it is located in the middle of the cornea, even though the scar is small, it has a great impact on vision.

After reading the above content, we should have some understanding of the obvious symptoms of keratitis. Today, we will introduce more topics about eye health. Sihai Xiaobian will continue to introduce them in the following articles. Welcome to check. Wish you a happy life!