Screening of Glaucoma with Cup to Disc Ratio (CDR) at Low Cost

Glaucoma is actually a series of conditions, characterized by a particular form of optic nerve damage. It is a silent theft of sight. Early perception about the complex of disease is important. Without treatment, glaucoma can cause total permanent blindness within a few years. In recent studies there is no efficacious method for low-cost perceive glaucoma. In this work the proposed method is Cup Disc Ratio assessment using 2-D retinal fundus image. First the image is preprocessed next extract the intensity I component, then using Sparsity constraint Coding (SC) algorithm finding the accurate boundary of optic disc and optic cup. The prior stage of glaucoma is screen by the assessment of Cup to Disc Ratio (CDR). This method is more efficient in low cost screening glaucoma.