Changes in Orbital Macrovascular and Intraocular Microvascular Blood Flow After Orbital Decompression Surgery in Patients With Thyroid Eye Disease

Inclusion Criteria: * Adults aged 18 years or older * Diagnosis of inactive thyroid-associated orbitopathy * Presence of moderate-to-severe proptosis with indication for surgical orbital decompression * Planned to undergo balanced orbital decompression surgery * Ability to provide written informed consent * Adequate image quality for OCTA and Doppler ultrasonography assessments Exclusion Criteria: * Active phase thyroid-associated orbitopathy * Thyroid dysfunction or systemic condition contraindicating general anesthesia * Proptosis due to causes other than TAO * History of orbital radiotherapy * Previous orbital or intraocular surgery * Presence of retinal or choroidal pathology affecting vascular measurements * History of systemic vasculitis or other vascular diseases * Diabetes mellitus or systemic hypertension * Use of systemic immunosuppressive therapy * Age under 18 years