Inverse hypopyon (hyperoleon) at the posterior segment in pathological myopia.

Tripathy K, Chawla R. BMJ Case Rep 2017. doi:10.1136/bcr-2017-223416 Description A 54-year-old woman presented a year after vitreoretinal surgery with silicone oil injection in the left eye. The left eye showed emulsified silicone oil in the anterior chamber and a posterior chamber intraocular lens. The fundus revealed a posterior staphyloma, attached retina and whitish emulsified silicone bubbles with a horizontal lower border giving rise to inverse hypopyon in the posterior pole (figure 1). Inverted hypopyon at the posterior pole is a rare finding which can be seen in patients with posterior staphyloma and long-term silicone oil tamponade. The emulsified silicone oil being lighter than fluid floats superiorly giving rise to this appearance mostly in the anterior segment (hyperoleon). In our case, the emulsified silicone oil bubbles (asterisks, figure 2) were limited within a pocket of residual hyaloid/membrane (arrows, figure 2) at the edge of the staphyloma leading to an appearance of an inverted hpopyon in the posterior segment.