Native format - 3dsMax8 Service Pack 3 Other formats: 3dsMax 2014 sp3; Maya 2014 sp2; OBJ; FBX;
All files have Subdivision Level 1 applied to the model. To unsmooth it, just change to 0 (zero) Iterations in 3ds Max or Divisions in Maya.
Real-World Scale (centimeters)
Scene with 3dsMax 8 V-Ray setup is in Eye_A_VRay.zip (Vray 1.5 RC3) Scene with 3dsMax 2014 V-Ray setup is in Eye_A_VRay_Mx2014.zip (Vray Adv. 2.40.04) Scene with Maya 2014 V-Ray setup is in Eye_A_VRay_Maya2014.zip (Vray Adv. 2.40.02)
All V-Ray files have one model with four materials (blue, green, grey and brown colour of the iris). To apply material you like open group and just drag and drop it on the 'Iris' object.
Geometry: Editable poly
Unsmoothed Polygons - 704 Tris - 1408 Vertices - 708