Is it possible to accurately overlay a softlens image onto an iris image for a realistic effect?

[Rsun24]

I'm exploring the feasibility of overlaying a softlens image onto an iris image to create a realistic virtual try-on experience. I'm curious to know if existing technologies or techniques can achieve a seamless integration where the softlens image appears to perfectly fit the iris of the eye.

Specifically, I'm interested in understanding:

The challenges involved in aligning and sizing the softlens image with the iris image.
Any existing approaches, libraries, or methods that could facilitate this process.
Examples of successful implementations or relevant research in this area.
Any insights or advice on this topic would be greatly appreciated. Thank you!