Add a new type of eye with a hallucination-inducing active gaze attack. It could be called either “third eye” or “pseyechedelic”.

Sunglasses, an eye-slot tool that protects versus being blinded by flashes of light from things like lightning bolts, cameras, and yellow lights, either completely or with an 80% chance. (They probably shouldn’t block blinding from spat venom.) May also block certain gaze attacks. They should have some downside when worn, such as limiting your maximum vision radius or impeding searching.

Tourists start with a pair of sunglasses.

Any gaze attack which is prevented by blindness (one which is visual in nature) is prevented by hallucination, or at least the effects are reduced or mitigated. Possibly archons’ blinding gaze should be exempted from this, with the hallucinatory message being “The power of the Aurora overwhelms you!”