Hi there-
While color change with Latisse use is possible, it is only possible in patients with GREEN eyes....
When Latisse changes the color of the iris, what is going on is that the already dark (pigmented) areas are getting darker...
This is why people with blue eyes are at no risk (they have no pigmented cells to get darker), and why people with brown eyes are at minimal risk (their eyes are already maximally pigmented).
People with green eyes have some pigment, and with repeated misuse of the product (it really would require you to misapply it regularly), their eyes might darken...
Your situation does not sound like what you might ascribe to Latisse.