Highly realistic model of the eyeball.
Resolution 8192 pixel texture to the sclera, 4096 for the iris.
4 separate objects: cornea, sclera (eyeball), lens, iris
Correct unwrap uv maps, handed unwrappment.
Size 1 to 1, approximately 2.5 cm
Iris and sclera texture not symmetrical
Product is ready to render, lights and cameras included in file. (only in max file) If you put the eyes to another characters of course you should change the shader/hdri map/lighting settings to match with your current model/scene.

Non game ready.