Dr. Maria Levina, an ophthalmologist, stated that some diseases, including damage to the nervous system and skin cancer, can cause changes in the iris of the eye.
According to her, this can also occur when fine metal shavings enter the eye. Over time, these shavings oxidize and penetrate the iris pigment, giving it a rusty brown or greenish hue. Furthermore, damage to the nervous system, which disrupts the eye's nerve supply and lightens the iris color, can be another possible cause.
She says: "Uneven iris color can also result from tumor growth, including skin cancer, which causes hyperpigmentation accompanied by localized opacity of the iris."
The doctor emphasizes the need to consult a specialist immediately upon noticing any changes in the iris of the eye.
For his part, expert Valery Litvinov, from Perm Technical University, points out that heterochromia is a condition associated with an uneven distribution of melanin, the pigment responsible for the color of the eyes, skin and hair.
There are two main types of heterochromia: congenital and acquired. Congenital heterochromia develops during fetal development and usually does not affect health. Acquired heterochromia is less common and requires medical attention.
