Residual Stage of Open Angle Glaucoma, also known as open-angle glaucoma residual stage, is related to glycogen storage disease viii and pneumatosis cystoides intestinalis. An important gene associated with Residual Stage of Open Angle Glaucoma is SI (Sucrase-Isomaltase), and among its related pathways/superpathways are Digestion and absorption and Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs).