You can also use a Gem of Seeing to see invisible things. It gives you true sight which is even better than see invisible. Of course it requires a free hand to use, so not the same as a pair of glasses, but what you going to do? ;) Cheers Well, you could work with your GM...
rarely forgive a wrongdoing done to them or their families.11While friendship with a dwarf can be hard-won,3they are capable of seeing through ancient prejudices to value a battle-tested friend. True friendship to a dwarf is worth more than all thegoldand gemstones that one could acquire.11...