Does lumigan help lengthen eyelashes and how much chance is there it will change the colour of the iris?

Lumigan eyelashes: Lumigan will lengthen the eyelashes similar to latisse (bimatoprost). There is a small percentage of patients who develop increased iris pigmentation due to the increased melanin within melanocytes. It usually occurs in people with hazel or brown eyes.

Yes: Lumigan will increase the length but not the number of lashes. Color change is rare and usually reverses if the medication is stopped right away.