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Causes and symptoms of corneal ulcers

A corneal ulcer is considered one of the common pathological conditions in the eyes, and it is the erosion of part of the surface of the cornea, and the cornea is the transparent area in the front part of the eye that acts as a window through which we see it, as it refracts light and provides protection for other parts of the eye, if Inflammation of the cornea due to infection or injury, the inflammation may develop into an ulcer, and in this article we will explain to you the most important causes and symptoms of corneal ulcers and when you should consult a doctor.


Symptoms of corneal ulcers:

When the symptoms are clear, especially if the sore is deep, it causes severe pain in the eye, and vision may sometimes be impaired. These common symptoms of an eye ulcer include the following:

  1. Severe redness of the eye.
  2. Severe eye pain.
  3. Feeling of suspicion in the eyes.
  4. rupture.
  5. Blurry vision (blurred vision).
  6. Burning eyes
  7. Feeling itchy.
  8. Feeling of a foreign body in the eye.
  9. Excess tears.
  10. Eyelid swelling and swelling.


Causes of corneal ulcers:

It should be noted that the human eye is well protected by eyelids and profuse tears, but if the cornea is damaged, then germs and bacteria may enter it through small scratches, which may commonly cause corneal ulcers, and the condition is more dangerous the more the sore is The cornea is deeper; As a deep ulcer can cause a scar in the cornea, which prevents light from entering the eye, and among the most important reasons that may lead to a corneal ulcer are the following:



Corneal infection:

Where there are many types of corneal infections that may cause corneal ulcers, and they can be explained in the following in some detail:


Bacterial infection:

As it attacks the corneal bacteria when it is infected or irritated, which leads to bacterial infection, which is the most common cause of corneal ulcers, and contact lenses are among the most important causes of infection and infection in the eye, especially if they are not cleaned properly.


 Parasitic infection:

Where there are some types of parasites that may cause ulcers in the cornea, and Alchokmeba infection is one of the dangerous types of parasites that infect the cornea and require immediate doctor's review; As infection can lead to serious scarring and loss of vision, and it is worth noting that Shokumeba is usually found in swimming pools and hot tubs, and it is noted that wearing contact lenses while swimming may increase the chances of infection, so it is advised to remove the contact lenses before swimming. .


Fungal infection:

Where a corneal ulcer can be caused by a fungal infection that may occur due to the incorrect use of steroid eye drops or contact lenses, and it can also occur if plant materials enter the eye.


 Viral infection:

Where a corneal ulcer can occur as a result of infection with the varicella virus, or the viruses that cause cold sores, and corneal injuries. It should be noted that the presence of small cracks or scratches on the surface of the cornea may lead to a corneal ulcer as a result of damaging its surface and facilitating the invasion of bacteria to it, These scratches usually occur as a result of direct wounds, which occur as a result of injury to the cornea by scratching the nails, or by means of a mascara wand, or collision of the cornea with metal or glass particles., Chemical burns, and the entry of a spray of harmful liquids inside the eye.



 Disorders that cause corneal ulcers:

 It should be noted that there are some types of disorders that may lead to corneal ulcers, and among these disorders are the following:

Disorders that lead to severe dry eyes:

 Such as dry eye syndrome, which makes the eyes more susceptible to infection as a result of losing tears that protect them against germs.


Disorders that affect the eyelid:

 Such as Bell's palsy, as it prevents the eye from closing completely, causing dry eyes, making the eye more susceptible to corneal ulcers. An autoimmune disorder or an immune deficiency state.

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