2 doctors weighed in:

Why does excess thyroid cause exophthalmos?

2 doctors weighed in
Dr. Ralph Morgan Lewis
Family Medicine
1 doctor agrees

In brief: Medscape answers

"…etiology of thyroid-related orbitopathy is autoimmune-mediated inflammatory process of orbital tissues, predominantly affecting fat & extraocular muscles.
Lymphocytes, plasma, & mast cells are cellular constituents in this process. Deposition of glycosaminoglycans & influx of water increase the orbital contents. Obstrxn of superior ophthalmic vein also contributes to orbital engorgement".

In brief: Medscape answers

"…etiology of thyroid-related orbitopathy is autoimmune-mediated inflammatory process of orbital tissues, predominantly affecting fat & extraocular muscles.
Lymphocytes, plasma, & mast cells are cellular constituents in this process. Deposition of glycosaminoglycans & influx of water increase the orbital contents. Obstrxn of superior ophthalmic vein also contributes to orbital engorgement".
Dr. Ralph Morgan Lewis
Dr. Ralph Morgan Lewis
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