Posterior corneal pigmentations digital illustration

Posterior corneal pigmentations Save

ICD-10 code: H18.05

Chapter: Diseases of the eye and adnexia

Understanding Posterior Corneal Pigmentations

Posterior corneal pigmentations refer to the presence of dark spots or patches on the back surface of the cornea, which is the clear outer layer of the eye. These pigmentations are caused by the accumulation of melanin, a natural pigment that gives color to the skin, hair, and eyes.

While posterior corneal pigmentations are not typically a cause for concern, they can sometimes be a sign of an underlying eye condition or disease. Here's what you need to know:

  1. Causes: The exact cause of posterior corneal pigmentations is not fully understood, but it is believed to be related to the aging process and exposure to ultraviolet (UV) light. Certain eye conditions, such as Fuchs' endothelial dystrophy and pigment dispersion syndrome, can also increase the risk of developing these pigmentations.
  2. Symptoms: In most cases, posterior corneal pigmentations do not cause any symptoms and are only detected during a routine eye exam. However, if the pigmentations are large or numerous, they can sometimes cause blurry vision or glare.
  3. Diagnosis: A comprehensive eye exam, including a slit-lamp exam and corneal topography, can help diagnose posterior corneal pigmentations. Your eye doctor may also perform additional tests to rule out any underlying eye conditions or diseases.
  4. Treatment: In most cases, no treatment is needed for posterior corneal pigmentations. However, if the pigmentations are causing vision problems, your eye doctor may recommend a corneal transplant to remove the affected tissue.
  5. Prevention: To reduce your risk of developing posterior corneal pigmentations, it's important to protect your eyes from UV light by wearing sunglasses or a hat with a brim. If you have an underlying eye condition, such as Fuchs' endothelial dystrophy or pigment dispersion syndrome, it's important to work with your eye doctor to manage your condition and prevent complications.

If you notice any changes in your vision or have concerns about your eye health, be sure to schedule an appointment with your eye doctor as soon as possible. Early detection and treatment can help prevent complications and preserve your vision.