article_snippet: The technique, which is currently undergoing clinical trials, works by using something known as 'scavenger cells' to digest and remove the pigment from the iris surface.
article_snippet: The technique, which is currently undergoing clinical trials, works by using something known as 'scavenger cells' to digest and remove the pigment from the iris surface. 
article_snippet: By removing the pigment, light can enter small fibres in the patient's natural blue eye.
article_snippet: By removing the pigment, light can enter small fibres in the patient's natural blue eye.
article_snippet: By removing the pigment, light can enter small fibres in the eye.
article_snippet: Our procedure does not dislodge or even contact any of the the "iris pigment epithelium" or IPE on the back side of the iris. '
article_snippet: In addition, Our procedure does not actually remove any pigment. '
highlights_snippet: A low-energy laser is applied to the iris to disrupt the brown pigment .
  
highlights_snippet: This causes body to trigger 'scavenger cells' to remove dark colours .
  