Survey of Glaucoma Detection Methods

AbstractGLAUCOMA is a chronic eye disease that can damage optic nerve. According to WHO It is the second leading cause of blindness, and is predicted to affect around 80 million people by 2020. Development of the disease leads to loss of vision, which occurs increasingly over a long period of time. As the symptoms only occur when the disease is quite advanced so that glaucoma is called the silent thief of sight. Glaucoma cannot be cured, but its development can be slowed down by treatment. Therefore, detecting glaucoma in time is critical. However, many glaucoma patients are unaware of the disease until it has reached its advanced stage. In this paper, some manual and automatic methods are discussed to detect glaucoma. Manual analysis of the eye is time consuming and the accuracy of the parameter measurements also varies with different clinicians. To overcome these problems with manual analysis, the objective of this survey is to introduce a method to automatically analyze the ultrasound images of the eye. Automatic analysis of this disease is much more effective than manual analysis.