Heterochromia iridum

As iris heterochromia ( heterochromia iridis ), also Odd - Eye ( d ) refers to the difference between the two irises of the eyes by interfering with pigmentation. Consequently, the target organism has two different eye colors. It occurs in humans is relatively rare. White or Pied pets with partial or complete leucism, like cats or dogs are more commonly affected.

Causes and consequences

Heterochromia can be inherited in an autosomal associated with deafness in the context of Waardenburg syndrome, or be due to other variants of the leucism. Often, however, it occurs after an iris inflammation, which ultimately can lead to cataracts or other opacities. In other cases it arises in the disease of the sympathetic nerve. In most cases, the diseased eye is paler. Heterochromia often leads to anisocoria ( unequal pupil size ).

The shape of the Heterochromie that has no impairment of the visual field and visual acuity result, occurs in approximately four cases out of a million persons.

The so-called sectoral heterochromia, so if in one eye a certain iris section is affected by the color difference ( this can be a slanting towards the middle segment ) or the central heterochromia ( just a different colored ring around the iris center) occurs, however, significantly more common in the population on.

Heterochromia and National Socialism

Relatively well-known is the case of Karin Magnussen. She was of the opinion that one can "cure" congenital heterochromia. From a colleague she heard of Sinti children with two eye colors. 1943, the family Mechau, which included these children in the Auschwitz concentration camp. Josef Mengele was administered in people with heterochromic eyes eye drops. These eye drops (possibly adrenaline) led to the swelling of the eyes or even blindness. Mengele had contact with Magnussen and promised to send her the eyes of the children after their death. The children were killed by cardiac injection.

Gallery

Central heterochromia

Heterochromia iridis

Sectoral heterochromia

Heterochromia in a cat

Irisheterochromie in a husky