Mila Kunis, the “Bad Moms” actress, is heterochromatic. Her left eye is brown and her right eye is green. How did Mila Kunis develop different colored eyes? Is she born with it? In Jan. , Mila Kunis revealed her struggle with her chronic iritis inflammation left her with cataracts and poor vision. Actress Mila Kunis, a staple on any list of the most captivating celebrity eyes, also has heterochromia. Look closely: Mila's left eye is green and her right eye is much darker, almost brown. Sometimes, a celebrity has a very, very subtle heterochromia, where only part of the eyes are mismatched in color or the color difference is just barely there. This is where the iris of one eye is a completely different color than the iris of the other eye. 2. Partial heterochromia (or sectoral heterochromia). This is where only a portion .