In this paper we discuss application of an anisotropic diffusion equation in processing Posterior Capsular Opacification (PCO) Images. Such images are recorded to monitor the state of a patient’s vision after cataract surgery. Nonlinear filtering using an anisotropic diffusion equation generates segmentation-like results by enhancing edges represented by the high value of the gradient and smoot...

AIM To find out the incidence of primary posterior capsular opacification (PCO) in rural patients with a hypermature senile cataract undergoing cataract surgery. SETTINGS Tertiary eye care center in central India. DESIGN Prospective, observational, noncomparative study. MATERIALS AND METHODS Two-hundred eyes of 200 patients presenting with a hypermature cataract underwent manual small inc...

Material & Methods: A retrospective chart review of all patients undergoing phacoemulsification with implantation of posterior chamber IOL by a single surgeon from February 2000 to April 2007 was done in this study. The operated eyes of the patients were divided into 2 groups. Group A eyes were implanted a PMMA IOL (LX10 BD, Alcon) while group B eyes were implanted a Hydrophobic Acrylic (Acryso...

BACKGROUND Posterior capsule opacification (PCO) is the most common post-operative complication associated with cataract surgery and is mostly treated with Nd:YAG laser capsulotomy. Here, we demonstrate the use of high-resolution spectral-domain optical coherence tomography (OCT) as a technique for PCO analysis. Additionally, we evaluate the influence of PCO types and the distance between the i...

PURPOSE The ocular humors are relatively low in protein, yet cell growth in the human capsular bag still occurs after extracapsular cataract extraction (ECCE) surgery. This resilient growth gives rise to posterior capsule opacification (PCO) in a significant proportion (30%) of patients. This study compared the ability of human lens cells to proliferate in serum-supplemented and protein-free me...

PURPOSE Posterior capsule opacification (PCO) is a complication of cataract surgery resulting from the proliferation, migration, and epithelial-to-mesenchymal transition (EMT) of lens epithelial cells that remain associated with the lens capsule. These changes cause a loss of vision. The authors developed a chick embryo lens capsular bag model to study mechanisms involved in the onset of PCO. B...

PURPOSE To describe a software program developed to provide an objective assessment of the amount of posterior capsular opacification (PCO) in high-resolution digital images of the posterior capsule after cataract surgery. METHODS Images are analyzed by a set protocol of defining the area of the posterior capsule, removing the Purkinje light reflexes by intensity segmentation, contrast enhanc...

This paper demonstrates the wide variety of systems for the analysis of posterior capsular opacification (PCO). No single system has been proved to be a gold standard and it is difficult to comment on the advantages of one system over another with the limited current knowledge on the effects of PCO on vision. There are few studies that actually compare the different systems of analysis. Researc...