A procedure to actually lighten your eyes and change from brown to blue/green exists now and is currently available. At least in Spain, it is called Eyecos.
What does /sci/ think of this? Is this dangerous? Apparently it has gone on from 2013 to now without issues, but who knows.

This is Eyecos
https://eyecos.eu/en/

This is another company doing the same thing but who knows where they are located
https://irexlaser.com/

This is another called Yeux Clairs, but in Mexico
https://www.yeuxclairs.com/

Here is another called Neoris Eyes, and they seem different as they use a laser for "keratopigmentation" to change your eye color.
https://www.neoris-eyes.co.uk
Thesr results are unbelievable.
https://www.neoris-eyes.co.uk/eye-color-change/before-after/