The syndrome manifests as granulomatousconjunctivitis in one eye, accompanied by swollen lymph nodes in front of the ear on the same side. Granulomatous conjunctivitis refers to inflammation of the conjunctiva, the membrane that covers the white part of the eye, characterized by the presence of granulomas, small areas of inflammation due to tissue injury. Patients with POS may experience a red, irritated, and painful eye, fever, a general lack of well-being, swelling of nearby lymph glands, and sometimes increased tearing.[1]
Causes
The most common cause of POS is cat-scratch disease, an infectious disease that typically results from a scratch or bite from a cat. However, this syndrome is an unusual feature of cat-scratch disease. In rare cases, other infections may also cause the syndrome.[1]
^Thompson S, Omphroy L, Oetting T (February 2001). "Parinaud's oculoglandular syndrome attributable to an encounter with a wild rabbit". Am. J. Ophthalmol. 131 (2): 283–4. doi:10.1016/S0002-9394(00)00954-5. PMID11228320.
^Parentin F, Molin GD, D'Agaro P, Busetti M, Campello C (2007). "Parinaud's oculoglandular syndrome due to herpes simplex virus type 1". Ocul. Immunol. Inflamm. 15 (2): 139–41. doi:10.1080/09273940701298422. PMID17558842. S2CID19524721.