Association of Anterior Uveitis With Acute Zika Virus Infection in Adults.

Importance: Acute anterior uveitis has been reported to be associated with Zika virus (ZIKV) infection in case reports and retrospective studies based on systemic clinical signs of ZIKV and positive serologic tests. Objective: To describe the ophthalmic findings associated with systemic ZIKV infection during the 2016 ZIKV outbreak in Guadeloupe in the French West Indies. Design, Setting, and Participants: This cohort study assessed adult patients with red eye and virologic or serologic confirmation of acute ZIKV infection who were admitted to the Pointe-à-Pitre University Hospital from January 1, 2016, to January 1, 2017, for a systematic ophthalmologic examination. All patients with anterior uveitis also underwent a complete uveitis workup to rule out other causes of uveitis. Patients were excluded from the study if they had active uveitis and a history of uveitis or positive serology for other infectious diseases including dengue fever virus and chikungunya virus. Data were analyzed from January 1, 2016, to January 1, 2017. Exposures: Patients with confirmed ZIKV infection underwent full ophthalmic examination at study inception and 3, 6, and 12 months. Main Outcomes and Measures: Description of the presenting ocular characteristics, management, and outcome. Results: Of 62 total patients with a red eye, 32 (51.6%) had no uveitis (mean [SD] age, 27.8 [3.7] years; 26 women [81.3%]) and 30 (48.4%) had anterior uveitis (mean [SD] age, 27.5 [3.8] years; 26 women [86.7%]), which was bilateral in all cases. Acute anterior uveitis was nongranulomatous and without synechiae, exhibiting mild anterior chamber reaction with small keratic precipitates. Ocular hypertension occurred in 25 patients (83.3%) with uveitis at presentation and persisted in 15 patients (50%) at 1 year despite antiglaucoma therapy and control of uveitis. Uveitis responded to topical steroids in all cases. Intraocular pressure was within normal limits for all patients without uveitis throughout the follow-up period. Conclusions and Relevance: Anterior uveitis was present in almost half of patients with a red eye and acute systemic ZIKV infection; the uveitis was usually bilateral and often associated with increased intraocular pressure. These results suggest that ophthalmic evaluation should be performed in patients with red eye and acute ZIKV infection to potentially detect and manage hypertensive anterior uveitis.

Visual Acuity in Birdshot Retinochoroidopathy Evaluation.

PURPOSE: To determine the statistical correlation between visual acuity (VA) and various quantitative parameters relevant to birdshot retinochoroidopathy (BRC) evaluation. DESIGN: Hospital-based retrospective observational study. METHODS: setting: Institutional. STUDY POPULATION: Consecutive HLA29+ BRC patients were included between May and August 2013 at a single tertiary center (Pitié-Salpétrière Hospital, Paris). OBSERVATION PROCEDURES: Demographic data and quantitative parameters relevant to BRC at baseline were collected: VA, degree of anterior and posterior inflammatory reaction, foveal thickness measured by optical coherence tomography (OCT), Arden ratio, and electrooculography (EOG) light peak. MAIN OUTCOME MEASURES: Correlation between VA and the other parameters of the ipsilateral and fellow eye was performed using Spearman rank correlation coefficients. RESULTS: Fifty-five patients were included. Mean VA was 6/9.5 in the right eye (OD) and 6/12 in the left eye (OS). Mean foveal thickness was 240 µm OD (range: 112-606) and 251 µm OS (range: 85-662). Mean Arden ratio was 159% OD and 160% OS. EOG light peak was 714 mV OD (range: 316-1379) and 746 mV OS (range: 272-1652). VA of a given eye was moderately correlated with VA of the contralateral eye (r = 0.4). On the contrary, all other parameters showed a strong correlation between both eyes (all r > 0.7, P < .01). Overall, none of the studied parameters was correlated with its VA (all r < 0.5). CONCLUSION: In BRC, visual acuity alone does not seem to fully reflect the disease severity in terms of clinical or ancillary quantitative findings at baseline.