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Yeux Clairs laser procedure is done to lighten the color of the eyes, but it does not remove the pigment, it only affects the cells that contain pigment and making such pigment to be removed by the same iris. This way it prevents the pigment from moving and obstructing the eye drainage, condition that could cause problems with the intraocular pressure.
The laser procedure is done with the patient sitting down in front of the laser device and it is done in both eyes, over the superficial iris pigment, which induces the permanent and irreversible removal of such pigment. This does not affect the fibers or the pigment that is behind the iris.