MMP9 and thyroid gland disorder: In contrast, no differences were found between MMP-2, MMP-3, MMP-9, and IL-17A among each group regarding laboratory variables (TSH, fT4, fT3, and TRAb), thyroid function status at evaluation (euthyroidism vs. hyperthyroidism), ophthalmological assessment (CAS and its subitems, tear MMP-9 test, and ocular surface assessment) (data not shown).