LAUSR

To the Editor: Primary intraocular lymphoma (PIOL) is clear vitreous cavity and absence of retino-choroidal rarewithanapproximate incidenceof4.8/millionandabout anomalies [Figure 1C and 1D]. Ultrasound biomicroscopy 300 new cases annually in the United States. Compared with PIOL, the prevalence of secondary intraocular lymphoma (SIOL) is significantly lower. Spreading to the eye fromadistant site via the circulation, SIOLsoccurwithin the uvea, with most cases confined to the choroid. Ciliary body involvement is rare in SIOL, while secondary diffuse large B-cell lymphoma with bilateral ciliary body involvement has, to our knowledge, been reported rarely.