This model of a human eye includes textured Iris and Sclera models, the textures on the Sclera can sometimes foul up but for most cases it works fine. In the case that the texture packing does fail I have included all the texture files in the download. The current version only has one option for the texture of the iris but can easily be modified with your own custom images. The Sclera includes the back part of the eye textured with a simple gradient texture and the cornea is a procedural glass texture allowing you to see the iris underneath with slight distortions based on what angle you view the eye from.