KERATOMALACIA

Keratomalacia is a severe eye condition characterized by the softening and degeneration of the cornea, the transparent outer layer of the eye. This condition primarily occurs due to a deficiency in vitamin A, which is essential for maintaining the health of the cornea and other ocular structures. Keratomalacia is most commonly observed in populations with inadequate nutrition, particularly in developing countries where vitamin A deficiency is prevalent.

SYMPTOMS

The symptoms of keratomalacia may include:

  • Corneal Ulceration: Formation of ulcers or open sores on the surface of the cornea, leading to pain, redness, and photophobia (sensitivity to light).
  • Corneal Opacity: Clouding or haziness of the cornea, reducing visual acuity and clarity of vision.
  • Night Blindness: Impaired vision in low-light conditions, particularly during nighttime or in dimly lit environments, due to compromised function of the retina.
  • Xerophthalmia: Dryness of the eyes, irritation, and foreign body sensation, often accompanied by conjunctival and eyelid changes.

DIAGNOSIS

Diagnosing keratomalacia involves a comprehensive eye examination by an ophthalmologist, including:

  • Visual Acuity Testing: Assessment of visual acuity using standardized eye charts to determine the extent of vision loss.
  • Slit-Lamp Examination: Detailed examination of the cornea, conjunctiva, and anterior chamber of the eye using a slit lamp to detect corneal ulcers, opacities, or other abnormalities.
  • Medical History: Inquiring about dietary habits, medical conditions, and symptoms suggestive of vitamin A deficiency or ocular pathology.
  • Blood Tests: Measurement of serum vitamin A levels to confirm deficiency and assess the severity of malnutrition.

TREATMENT

Treatment of keratomalacia focuses on correcting the underlying vitamin A deficiency and managing ocular complications. Treatment options may include:

  • Vitamin A Supplementation: Oral or parenteral administration of vitamin A supplements to replenish deficient levels and promote corneal healing and regeneration.
  • Topical Lubricants: Eye drops or ointments containing lubricating agents to alleviate dryness, discomfort, and promote epithelial healing.
  • Antibiotic Therapy: Topical or systemic antibiotics may be prescribed to prevent or treat secondary bacterial infections associated with corneal ulceration.
  • Surgical Intervention: In severe cases of keratomalacia with extensive corneal scarring or perforation, surgical procedures such as corneal transplantation (keratoplasty) may be necessary to restore vision and ocular integrity.

Keratomalacia is a serious eye condition resulting from vitamin A deficiency, characterized by corneal degeneration, ulceration, and visual impairment. Early recognition and treatment of keratomalacia are essential to prevent irreversible damage to the cornea and preserve vision.

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