Ersatz Eye

From Xanathar's Guide to Everything, page 137; and Explorer's Guide to Wildemount, page 267.

Description
Wondrous item, common (requires attunement).

This artificial eye replaces a real one that was lost or removed. While the ersatz eye is embedded in your eye socket, it can't be removed by anyone other than you, and you can see through the tiny orb as though it were a normal eye.