Table 1: Clinical characteristics of cases undergoing orbital decompression and controls undergoing blepharoplasty.

- Case 1 Case 2 Case 3 Control 1 Control 2 Control 3
Age (years) 68 81 62 60 58 80
Gender F F F F F F
Race Caucasian Caucasian Caucasian Caucasian Caucasian Caucasian
Duration of Grave's disease prior to surgery (mo) 12 96 20 N/A N/A N/A
Duration of TED prior to surgery (mo) 6 8 20 N/A N/A N/A
Previous treatment for Grave's disease Methimazole, radioactive iodine Methimazole Methimazole N/A N/A N/A
Previous treatment for TED Selenium supplements Peribulbar steroid injection to OS, fat specimen from OD Selenium supplements N/A N/A N/A
Smoking history 10 pack-years, quit 40 years prior 7.5 pack-years, quit 44 years prior 0.2 pack-years, quit 3 years prior None None None
Body mass index (kg per m^2) 22.9 24.2 24.1 22.7 22.8 22.3
Exophthalmometry, Naugle (mm) 24.5 OD, 24.5 OS 26 OD, 30 OS 23 OD, 22 OS N/A N/A N/A
Thyroid stimulating immunoglobulin (TSI) level at time of surgery Not available >500 530 N/A N/A N/A
Presence of compressive optic neuropathy Yes No Yes No No No
CAS Score (Range 0-10) 7 7 8 N/A N/A N/A

“Pack-years” refers to the number of packs of cigarettes smoked per day multiplied by the number of years a person has smoked.