Hi , yes! TED and Graves' are their own separate conditions though many with TED do also have Graves, it is possible to develop TED with Hashimotos (a hypo-active thyroid condition) or without any thyroid condition! Here is an article that discusses this a bit more: https://thyroideyedisease.net/statistics. All the best, Sam S. (ThyroidEyeDisease.net, team member).