NON-PURULENT KERATITIS

 Nonpurulent keratitis is a type of eye inflammation that affects the cornea, the clear outer layer of the eye. It is characterized by a lack of pus or purulent discharge, and is typically caused by viral or allergic reactions.

Symptoms:

  • Redness and irritation of the eye
  • Watery or itchy eyes
  • Blurred vision
  • Light sensitivity
  • Tearing

Causes:

  • Viral infections, such as herpes simplex and varicella-zoster (the virus that causes chickenpox and shingles)
  • Allergic reactions to substances such as pollen, dust, or contact lenses
  • Autoimmune disorders such as rheumatoid arthritis and lupus
  • Nutritional deficiencies
  • Environmental factors such as exposure to ultraviolet light or dry air

Diagnosis:

  • An eye examination by an eye doctor
  • A slit-lamp examination which is an instrument that magnifies and illuminates the front of the eye
  • A test of tear film stability and quantity
  • A culture of the discharge (if present)
  • A test to check for any underlying autoimmune disorder.

Treatment:

  • Ocular lubrication to provide relief from symptoms such as dryness and itching
  • Topical antiviral medication, if the cause is a viral infection
  • Topical anti-inflammatory medication to reduce inflammation
  • Oral antiviral medication, if the case is severe
  • In severe cases, corticosteroids may be prescribed
  • Avoiding triggers such as allergens or irritants

Prevention:

  • Wearing protective eyewear when exposed to UV light
  • Proper care and cleaning of contact lenses
  • Avoiding rubbing the eyes
  • Managing any underlying autoimmune disorders

Complications:

  • Scarring of the cornea
  • Vision loss
  • Glaucoma
  • The risk of recurring keratitis is higher in people with a history of ocular herpes

It is important to seek prompt treatment for nonpurulent keratitis as delay may result in more severe complications such as vision loss or scarring of the cornea. If you experience symptoms of nonpurulent keratitis, make an appointment with an eye doctor for an examination and proper diagnosis.

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