16 x eye iris texture map sets in separate folders to make it easy to use in other software.

The texture maps :
Height Map
Detail Normal Map
Gel Normal Map
Basecolor Map
Gel Roughness Map
Standard Roughness Map
Ambient Occlusion Map
Emissive Map 

Included is a Marmoset scene and contains:
16 x Iris Materials
1 x Sclera Material
Eyeball models: fbx format.
1 x sclera texture map set in its own folder.