The problem with eye color changing from Latisse is way, way overblown. First of all, the color change happens only when Latisse (or Lumigan as it was manufactured for glaucoma) is put directly in the eye over long periods of time. Latisse is applied to the eyelashes only. And eye color is only affected if you have bits of brown already in your eye - so lighter brown or green eyes, not blue. I have not had any patients have eye color problems when they use the medication cosmetically, as recommended, applying it to the lashes. But your question was will your eye color return to normal if it changes, and the answer is "no" because the iris color has been permanently altered. However, using Latisse correctly, no matter what eye color you have, will not create an eye color change.