These eye drops were created to remove the yellow in the whites of the eye. Collyre Bleu Laiter is tinted blue to make the whites actually appear brighter. The blue eye drops make eyes appear cleaner. clearer and more youthful. These drops are great for any eye color. We recommend putting a drop in each eye and then waiting 15 minutes. Then look in the mirror and see the difference! You may be best to avoid using these eye drops when wearing soft contact lenses as the blue may tint the lens. Made in France.