Simply: eyeglasses w/ Helmets 1.1.0

This is going to require some explaining:

The Four eyes "trait" is considered an "enchantment" and has a single slot available to any headpiece for whatever enchantment needs to be on that headgear (i.e glasses have the Four Eyes Trait and the Riot Helmet from the Lonesome road DLC has a special enchantment that enables the player to effectively have night vision)…

naturally I could not overwrite previous enchantments without losing what makes them special so I removed a tag that overrides the eyeglasses slot, did a brief bit of testing with the NCR Ranger Helmet (with good results) and in theory the same change having been made to all other helmets (let me know if I missed one) should have the same effect.

… its a shame I cant make the eyeglasses invisible with the condition that they are under the helmet (I might be able to but I haven't found a way yet)

TL;DR - eyeglasses can be worn with helmets to appeal to those who took the four-eyes trait.

also - this mod was made with THIS mod in mind