Bilateral Giant Cell Arteritis Presenting as Bilateral Sudden Vision Loss.

Giant cell arteritis (GCA) is the most common form of primary vasculitis and it mainly involves large to medium sized vessels. It is also referred to as temporal arteritis as it primarily affects the temporal artery. Ocular involvement frequently occurs in GCA; if not promptly diagnosed, it can cause devastating ocular complications including complete vision loss and permanent blindness. In the majority of cases, it is unilateral; however, there are rare instances where bilateral ocular involvement is reported. In our report, we present the case of a patient presenting with bilateral sudden vision loss associated with GCA.