In this study published in the journal Ophthalmology, the authors evaluated the use of a logistic regression model for early diagnosis of primary vitreoretinal lymphoma. Primary vitreoretinal lymphoma is a rare disease with a generally poor prognosis. Early diagnosis of local ocular disease has been shown to prolong survival significantly, but because the disease is rare and the ocular symptoms are nonspecific, it is often misdiagnosed. In addition, although cytologic analysis of aqueous or vitreous samples is diagnostic, there are often problems with lymphoma cell detection in the sample. As a result, the diagnosis of PVRL is often delayed, taking on average 1 to 2 years from the onset of symptoms and typically requiring multiple biopsies.

