**JUST TO REITERATE, I MOSTLY STILL DO NOT BELIEVE IN THIS, EVEN THOUGH I HAVE RESEARCHED IT**
How to change the colour of your iris - supposedly:
"Altered stromal melanin density with increased structural light scattering during adolescent ocular maturation. (TYNDALL EFFECT)"
The colour of the iris depends mainly on melanin concentration in the anterior iris stroma.
If melanocyte activity slightly decreases or melanin becomes less densely packed within the stroma, less light is absorbed. When absorption drops, more light is reflected back - making the iris appear lighter.
All human irises are fundamentally BLUE at the structural level because collagen fibrils in the iris stroma preferentially scatter shorter wavelengths (Tyndall-type scattering). However, in individuals with high melanocyte activity, dense eumelanin accumulation absorbs incident light across the visible spectrum, suppressing back- scattered blue wavelengths and producing the perceptual phenotype classified as brown.
Before: Toxic
After: Natural Colour
In the iris, the amino acid L-tyrosine is converted by the enzyme tyrosinase into melanin within melanocytes, and the amount and type of melanin produced-under strong genetic regulation-determine how dark or light the eye color appears.
How to change the colour of your iris - supposedly:
"Altered stromal melanin density with increased structural light scattering during adolescent ocular maturation. (TYNDALL EFFECT)"
The colour of the iris depends mainly on melanin concentration in the anterior iris stroma.
If melanocyte activity slightly decreases or melanin becomes less densely packed within the stroma, less light is absorbed. When absorption drops, more light is reflected back - making the iris appear lighter.
All human irises are fundamentally BLUE at the structural level because collagen fibrils in the iris stroma preferentially scatter shorter wavelengths (Tyndall-type scattering). However, in individuals with high melanocyte activity, dense eumelanin accumulation absorbs incident light across the visible spectrum, suppressing back- scattered blue wavelengths and producing the perceptual phenotype classified as brown.
Before: Toxic
After: Natural Colour
In the iris, the amino acid L-tyrosine is converted by the enzyme tyrosinase into melanin within melanocytes, and the amount and type of melanin produced-under strong genetic regulation-determine how dark or light the eye color appears.
