Nerdy Glasses is a Shrine Item in Rogue Legacy
You can get it by praying at a Spiritual Shrine
Corrects the Near-Sighted and Far-Sighted traits. If you have one of those, it is much more likely to drop from the shrine. Allows you to see items that are hidden in walls or invisible. Also cures color blindness and stereo blindness somehow. Allows you to see which of the Miserly Elf's chests contains money.