Electronic periscope googles with diffuser lenses mounted in an insulated face shield. Night vision capable.
Only a quarter million apiece from your friendly government contractor.
If you have diffuser optics across the entire spectrum, you can’t see through them.
High resolution camera system with a relay to VR goggle system, would be capable of protecting a users eyes from direct exposure. The camera hardware is still vulnerable.
Possibly a cold plasma sheath absorbent to the weapons operating frequency might offer a protective dispersion effect for an optics system. A good spot to begin to dig for an answer.