Keratitis is the inflammation of the cornea, which is the clear, dome-shaped front surface of the eye. Here are the answers to your questions:

Keratitis can have various causes, including:

Infections: Bacterial, viral, fungal, or parasitic infections can lead to keratitis. The most common infectious cause is the herpes simplex virus (HSV).

Contact lens wear: Improper use or maintenance of contact lenses, such as wearing them for too long or poor hygiene, can increase the risk of developing keratitis.

Eye injuries: Scratches, cuts, or trauma to the cornea can lead to keratitis.

Dry eye syndrome: Insufficient tear production or poor tear quality can make the cornea vulnerable to infection and inflammation.

Allergic reactions: Allergies to substances like pollen or pet dander can cause allergic keratitis.

The treatment of keratitis depends on the underlying cause and severity of the condition. It may include:

Medications: Antibiotic, antiviral, antifungal, or antiparasitic eye drops or ointments may be prescribed to treat the infection.

Corticosteroids: In some cases, corticosteroid eye drops may be used to reduce inflammation and promote healing.

Antiviral medications: If keratitis is caused by a viral infection, antiviral medications may be prescribed to control the virus.

Pain relief: Over-the-counter pain relievers or prescription medications may be recommended to alleviate discomfort.

Management of underlying conditions: If keratitis is associated with dry eye syndrome or other underlying conditions, treating those conditions may be necessary.

Whether keratitis will go away on its own depends on the underlying cause and the severity of the condition. Some mild cases of keratitis, particularly those caused by non-infectious factors, may resolve on their own with proper supportive care and time. However, it is important to seek medical attention if you suspect keratitis to prevent potential complications or worsening of the condition.

Signs of keratitis can vary depending on the cause and severity, but common symptoms include:

Eye redness and irritation

Eye pain or discomfort

Blurred or decreased vision

Sensitivity to light (photophobia)

Excessive tearing or discharge from the eye

Foreign body sensation or gritty feeling in the eye

Eye swelling or eyelid drooping

There are different types of keratitis, including infectious keratitis (caused by infections) and non-infectious keratitis (caused by non-infectious factors like contact lens wear or dry eye syndrome).

For an accurate diagnosis, it is important to consult an eye care professional who can evaluate your symptoms, perform an eye examination, and recommend appropriate treatment based on the specific type and severity of keratitis.

Note: This information is not exhaustive, and it is essential to consult with a healthcare professional for proper diagnosis and individualized treatment options for keratitis.