This file requires more than 1000 samples, but if you deactivate the caustics you can reduce it substantially.

The video that I attached is a tutorial where I show how an earlier version of this product is manufactured. This is an improved version with corrected errors and an advanced system of refractive caustics that can be seen projected in the iris.

The materials are first class, with fresnel type reflections and other complex configurations.

You apart from using this eye for the purpose you want, will also provide you with the necessary knowledge and techniques to develop other projects!