Inferior orbital decompression for thyroid ophthalmopathy.

A technique of inferior orbital decompression for thyroid ophthalmopathy is described. The orbital floor is exposed through a lower eyelid incision, and completely removed while preserving the infraorbital nerve and vessels. A central strip of periorbita is retained under the globe for support. The amount of decompression averages 4 mm and ranges from 2 to 6 mm, depending on the amount of inflammatory residue and extraocular muscle enlargement.