Chorioretinal folds following glaucoma valve implantation

Glaucoma valve implants have been observed to cause scleral indentation and flattening. The authors report the case of a 79-year-old woman who had previously undergone glaucoma valve implantation, and who subsequently developed chorioretinal folds that corresponded to the implant in location and configuration. Accumulation of fluid behind the implant, as documented by B-scan ultrasonography, appeared to result in the observed scleral and chorioretinal changes. The authors conclude that chorioretinal folds can result following glaucoma valve implantation.