Click on the eye itself and change Alpha Mode from Blending to None.

It's help avoid hair alpha troubles.

For classic LL eyes

Rotation degrees -90.00000

This mesh eyes allows use any old classic LL eyes.

If you have troubles with layer tint, you can rez XRezo onto the ground (Sandbox location) and change color manually.

You need to manually change your head texture mode from "None" or "Alpha Blend" to "Alpha Mask". Use 15%.