HMMM....
I would like to point out that it says ENHANCES, not replaces... in my games, do not expect to cast anthing requiring line of sight with cybereyes... ever, regardless of mods. In the background universe, your eyes no longer connect to your soul, and even though your brain is interpreting a signal, it doesn't filter through your mana filter (all of this is my own read of the universe.)
I would like to point out that it says ENHANCES, not replaces... in my games, do not expect to cast anthing requiring line of sight with cybereyes... ever, regardless of mods. In the background universe, your eyes no longer connect to your soul, and even though your brain is interpreting a signal, it doesn't filter through your mana filter (all of this is my own read of the universe.)
The only reason that Radar and Ultrasound are not allowed is because that would break the game system. If it didn't break the system, then Catalyst would have allowed it. THAT is the only reason.
Tagz's description is what I like best. It has enough science to lend credence to it.