Clinical Manifestations, Prognosis, and Vaccination Status of Patients With Rubella Virus-Associated Uveitis.

PURPOSE: To assess the clinical and laboratory manifestations and vaccination status of uveitis patients positive for rubella virus (RV) in aqueous humor and investigate its relationship to Fuchs uveitis syndrome (FUS).

METHODS: Retrospective study of all uveitis patients, positive for RV in aqueous humor analysis (polymerase chain reaction [PCR] and/or Goldmann-Witmer coefficient [GWC]) between January 2010 and October 2016 at the ophthalmology departments in the Erasmus Medical Center (Rotterdam) and University Medical Center Utrecht. Outcomes of aqueous analyses of FUS patients during this period were assessed.

RESULTS: We included 127 patients (144 eyes) positive for RV in aqueous fluid: 23 (20%) by PCR, 120 (97%) by GWC, and 16 (13%) by both. The average age at first presentation was 37 years. Patients typically complained of blurred vision and exhibited a combination of unilateral anterior uveitis, keratic precipitates, vitritis, and absence of posterior synechiae, but the classical FUS was observed in a minority. The main cause of untreatable visual loss was glaucoma. Cystoid macular edema (CME) before intraocular surgery was not encountered. None of the unilateral cases developed involvement of the other eye. None of the patients was vaccinated against RV. All FUS patients, except 2 (5%), were positive for RV.

CONCLUSION: RV-associated uveitis and FUS are not exchangeable. Chronic anterior uveitis, vitritis, early development of cataract, and the absence of posterior synechiae and CME characterize RV-associated uveitis. Almost all FUS cases had documented intraocular RV infection, but only some of the patients with RV-associated uveitis presented with FUS.