Table 1: Differential Diagnosis for Diplopia in TED patients.
Below is a description of the discussed differential diagnoses for TED with corresponding signs and symptoms of each. Of note, (+) in the column would indicate this is a possibility for the disease, but all of the symptoms listed do not have to be present at the same time to make the diagnosis. A (−) indicates less likely with a particular disease.
| Supraduction deficit | Infraduction deficit | Adduction Deficit | Abduction Deficit | Ptosis | Lid Retraction | Decreased Visual Acuity | Chemosis | Conjunctival Injection | Proptosis | |
|---|---|---|---|---|---|---|---|---|---|---|
| Thyroid Eye Disease | + | + | + | + | − | + | + | + | + | + |
| Myasthenia Gravis | + | + | + | + | + | − | − | − | − | − |
| Idiopathic Orbital Inflammation | + | + | + | + | + | − | + | + | + | + |
| Cranial Nerve 3 Palsy | + | + | + | − | + | − | − | − | − | − |
| Cranial Nerve 4 Palsy | − | + | − | − | − | − | − | − | − | − |
| Cranial Nerve 6 Palsy | − | − | − | + | − | − | − | − | − | − |