BACKGROUND To describe, a yet non-documented complication of GDI surgery (glaucoma drainage incision surgery)--anterior to posterior segment migration of Ahmed Glaucoma Valve (AGV) tube. CASE PRESENTATION We report a young 9 year old boy, diagnosed with refractory glaucoma with Reiger anomaly. History included of poor vision in both eyes, left more than right with glare since childhood. He un...

This paper presents a colored resourceoriented Petri net (CROPN) modeling method to deal with conflict and deadlock arising in Automated Guided Vehicles (AGV) systems. The work can be viewed as the continuation of some of the authors’ previous work. Some unique features in AGV systems require the further investigation into their deadlock avoidance using CROPN models. The proposed approach can e...

PURPOSE To report the short-term efficacy and safety of the transfer of an Ahmed(™) glaucoma valve (AGV™) tube from the vitreous into the anterior chamber, in a patient with neovascular glaucoma who had undergone pars plana AGV(™) implantation and ultimately needed a silicone oil tamponade. CASE A 41-year-old male with proliferative diabetic retinopathy in both eyes was referred to us for tre...

Aimed at the problems of low search efficiency A* algorithm in global path planning, not considering size AGV and too many turns, DWA easily falling into local optimization, an planning based on improved fusion is proposed. To begin, obstacle rate coefficient added to algorithm’s evaluation function build adaptive cost function; safety are increased by improving mode; extracting key nodes, a co...

Order picking is a crucial operation in the storage industry, with significant impact on efficiency and cost. Responding quickly to customer demands shortening time given random nature of order arrival times quantities. This paper presents study order-picking process distribution center, employing “parts-to-picker” system, based dynamic batching task optimization. Firstly, arriving orders uncer...

− The CONTROLAB AGV is an electric tricycle vehicle that, following issues from client stations connected to the network office, moves autonomously through an office environment with a known floorplan and uses an electronic stick, which consists of infrared sensors, to detect and avoid unknown obstacles. This paper presents the global real-time solution for the CONTROLAB AGV to move smoothly wi...

RATIONALE Glaucoma drainage implant surgery is a treatment option for the management of neovascular glaucoma. However, tube obstruction by blood clot after Ahmed glaucoma valve (AGV) implantation is an unpredictable clinically challenging situation. PATIENT CONCERNS-DIAGNOSES-INTERVENTIONS We report 4 cases using intracameral air injection for the prevention of the tube obstruction of AGV by ...

Purpose. To compare the changes in corneal endothelial cells after pars plana Ahmed glaucoma valve (AGV) implantation with those after the anterior chamber AGV implantation for refractory glaucoma. Methods. The medical records of 18 eyes with pars plana implantation of AGV (ppAGV) were reviewed retrospectively and were compared with 18 eyes with the anterior chamber AGV (acAGV) implant. The pre...

BACKGROUND This study aims to compare the efficacy and safety of the Ahmed glaucoma valve (AGV) with the Baerveldt glaucoma implant (BGI) in glaucoma patients. METHODS Databases were searched to identify studies that met pre-stated inclusion criteria, involving randomized controlled clinical trials (RCTs) and non-randomized controlled clinical trials. Treatment effect was analyzed using a ran...