| Gender | Male | Male | Female | Male |
| Age/year | 76 | 71 | 44 | 58 |
| Brief history of illness | Progressive exophthalmos for 1 year, suspected of thyroid-associated ophthalmopathy | Swelling of the left upper eyelid for 5 months, slowly worsened | Bilateral upper eyelids swelling for 1 year, slowly worsened | Bilateral upper eyelids swelling for half a year （mainly the right）, slowly worsened |
| Sites of orbital involvement | Bilateral lacrimal glands, some extraocular muscles, optic nerve | Bilateral lacrimal glands （mainly the left） | Bilateral lacrimal glands | Bilateral lacrimal glands （mainly the right） |
| Extraocular sites of involvement | Suspected submandibular gland lesions （resected in other hospital） | Submandibular gland enlargement, tonsillitis | Submandibular lymph nodes enlargement, pharyngitis | Sinusitis, left parotid gland lesion （partial resection） |
| Pathology | No | No | No | IgG4-RD confirmed by another hospital |
Corrected visual acuity① （R/L） | 0.6/0.4 | 0.9/0.8 | 1.2/1.2 | 1.0/1.0 |
| NCT （R/L）/ mmHg | 20.1/23.4 | 17.6/18.2 | 13.3/16.4 | 15.2/14.8 |
| Conjunctiva | Hyperaemia （＋＋）, chemosis （＋） | Hyperaemia （-） | Hyperaemia （-） | Hyperaemia （-） |
| Anterior segment | Punctate epithelial erosions in the left, bilateral mild nuclear sclerosis | Bilateral mild nuclear sclerosis | （-） | （-） |
| Optic disc | Swelling | （-） | （-） | （-） |
| Macula | （-） | （-） | （-） | （-） |
| Exophthalmus （R/L）/mm | 21/23 | 15/16 | 18/18 | 17/15 |
| Serum IgG4/（g·L-1）② | 24.10 | 28.90 | 4.10 | 14.40 |
| Serum IgG/（g·L-1）③ | 29.00 | 18.10 | 12.20 | 26.70 |
| IgG4-RD RI | 10 | 6 | 6 | 6 |