%0 Journal Article %T Invasive Streptococcus viridans sphenoethmoiditis leading to an orbital apex syndrome %A Barton Branstetter %A Dante Sorrentino %A Jenny Yu %J Archive of "American Journal of Ophthalmology Case Reports". %D 2017 %R 10.1016/j.ajoc.2017.07.006 %X Orbital apex syndrome due to spread of infectious sinusitis is a serious disease, often with an insidious presentation with few ophthalmic signs and symptoms. Failure to recognize and treat infectious orbital apex syndrome early portends a grave prognosis, including profound, permanent visual loss and potentially death. Herein we describe a representative case and discuss the relevant aspects of prompt diagnosis and treatment %K Orbit %K Orbital apex syndrome %K Optic nerve %K Sinusitis %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5731554/