A cohort of phakic patients with bilateral vitritis, cystoid macular edema, and retinal periphlebitis has been previously reported.1 Despite long follow-up (an average of 13 years), these patients did not develop the typical characteristics of pars planitis, peripheral snowbanking, or multiple sclerosis. Additionally, these patients did not have a similar HLA antigen distribution as patients with known pars planitis.1 We postulated that an inflammatory, infectious, or autoimmune insult resulted in these findings and examined the world literature for patients with similar findings.
Maturi RK, Folk JC. Human T-Cell Lymphotrophic Virus Antibody in Phakic Cystoid Macular Edema. Arch Ophthalmol. 1999;117(11):1571. doi: