![Peripheral corneal ring due to hypercarotenaemia in a case of nutritional supplement abuse | British Journal of Ophthalmology Peripheral corneal ring due to hypercarotenaemia in a case of nutritional supplement abuse | British Journal of Ophthalmology](https://bjo.bmj.com/content/bjophthalmol/96/4/605/F2.large.jpg)
Peripheral corneal ring due to hypercarotenaemia in a case of nutritional supplement abuse | British Journal of Ophthalmology
![Central heterochromia blue grey eyes iris yellow ring | Central heterochromia, Gray eyes, Heterochromia Central heterochromia blue grey eyes iris yellow ring | Central heterochromia, Gray eyes, Heterochromia](https://i.pinimg.com/736x/e4/55/2f/e4552fb16ce61c8956e2d1d142456162.jpg)
Central heterochromia blue grey eyes iris yellow ring | Central heterochromia, Gray eyes, Heterochromia
![Whats that yellow Ring in the middle? The outer Iris suddenly turns more blueish from time to time🤔 : r/eyes Whats that yellow Ring in the middle? The outer Iris suddenly turns more blueish from time to time🤔 : r/eyes](https://i.redd.it/1rosh71hzsp31.jpg)
Whats that yellow Ring in the middle? The outer Iris suddenly turns more blueish from time to time🤔 : r/eyes
![I have a bright yellow ring around the pupil of my dark blue eyes (and some brown freckles). It looks like yellow / blue central heterochromia to me. What do you think? : I have a bright yellow ring around the pupil of my dark blue eyes (and some brown freckles). It looks like yellow / blue central heterochromia to me. What do you think? :](https://i.redd.it/bj9z6ge4z9741.jpg)
I have a bright yellow ring around the pupil of my dark blue eyes (and some brown freckles). It looks like yellow / blue central heterochromia to me. What do you think? :
![Blue and Green Pigments Don't Exist in the Human Iris, So How Do Some People Have Blue and Green Eyes? Blue and Green Pigments Don't Exist in the Human Iris, So How Do Some People Have Blue and Green Eyes?](http://www.todayifoundout.com/wp-content/uploads/2016/08/eye-color.jpg)