Ito T, et al. - Forty-three eyes in 39 candidates were retrospectively examined to study the factors influencing the accuracy of vitrectomy cell block technique in the detection of atypical lymphoid cells in subjects with vitreoretinal lymphoma. In comparison to using smear preparation, they detected atypical lymphoid cells more significantly using vitrectomy cell block technique. They also found concurrent cataract surgery and subretinal tumor infiltration significantly correlated with failure in vitrectomy cell blocks after adjusting for age and sex.