Acquired factors that can cause heterochromia
Siderosis or Hemosiderosis. These are deposits of iron on the iris that alter their normal color. It usually
occurs as a result of trauma or eye surgery.
• Fuch heterochromatic cyclitis. It is an infl ammation of the anterior chamber of the eye and is one of the causes that most frequently causes of iris heterochromia.
• Glaucoma or certain medications for treatment. The same pathology and even a large number of eye drops among which some are found to treat glaucoma can alter the color of the iris.
• Melanomas. Ocular tumors as a result of the proliferation of cells responsible for synthesizing melanin.
• Ocular infl ammation (Uveitis).
• Neurofi bromatosis.
• Waardenburg syndrome.