Iris Changes Over Time
Yes, the eyes do change with detoxification and there's plenty of photos to prove it.
My own eyes have changed over the years and you can see evidence of this on the main Iridology page.
Dr. Morse has shown many examples of his clients healing their bodies and subsequently changing their eyes in the process.
Here are some slides from Dr. Morse's Iridology course from the International School of Regenerative Detoxification illustrating Iris changes: