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Background: Anterior uveitis, inflammation of the anterior chamber and related structures, is a cohort of diseases that can present to almost any general or sub-specialty Ophthalmology practice. Its features classically involve anterior chamber cell and flare. Below the surface of these two signs exist a panoply of diagnoses. Body: The purpose of this review is to provide a general framework for diagnoses of anterior uveitis that are often missed as well as non-uveitic pathologies that often mimic anterior uveitis. Diagnostic deviation in either direction can have vision-threatening and rarely life-threatening consequences for patients. Using a comprehensive literature review we have collected a broad spectrum of etiologies of anterior uveitis that are easily missed and non-uveitic pathologies that can masquerade as anterior uveitis. Conclusions: We present a focused review on specific misdiagnosed anterior uveitis pathologies and some of the conditions that can masquerade as anterior uveitis and scleritis. [ABSTRACT FROM AUTHOR]

Purpose: To compare the superficial (FAZ-S) and deep foveal avascular zones (FAZ-D) of non-infectious anterior and posterior uveitis to healthy controls, using optical coherence tomography angiography (OCTA).Methods: OCTA was performed on 74 eyes: 34 eyes with non-infectious posterior uveitis (with (post+CME) and without macular edema (post−CME)), 11 eyes with non-infectious anterior uveitis (with (ant+CME) and without macular edema (ant−CME)), and the control group which included 29 healthy eyes.Results: Eyes suffering from non-infectious posterior uveitis presented with significantly larger FAZ-D when compared to healthy controls, both in the presence or in the absence of macular edema (p < 0.001). In the presence of macular edema, eyes presenting with anterior uveitis (ant+CME) also showed significantly larger FAZ-S (p = 0.03) and FAZ-D (p < 0.001), when compared to healthy controls. In the absence of macular edema, eyes with anterior uveitis cannot be distinguished from controls (p > 0.6).Conclusion: The deep retinal foveal avascular zone seems to be enlarged in eyes presenting with non-infectious posterior uveitis, both in the presence or absence of macular edema. [ABSTRACT FROM AUTHOR]