Glaucoma Essay

Glaucoma is a retinal disease that can lead to vision loss if it remains undetected and untreated. It usually occurs at the optic nerve head region due to the damage of ganglion cells. A study conducted by the Cataract Surgery Registry (CSR) from 2002 to 2012 on patients with pre-existing ocular co-morbidity showed that there has been an increase of around 119 number of patients from year 2011 to 2012 with 1976 and 2095 patients respectively (Mohamad Aziz Salowi & Goh, 2012). Although glaucoma comes as second after cataract in visual problem (Quigley & Broman 2005), the number is increasing over the years. According to Broadway (2013), the number of people with glaucoma in 2020 is estimated to increase about twenty million since 2010 which brings in a total of eighty million people by the year of 2020. What is more alarming is that around fifty percent (50%) of all glaucoma cases are not diagnosed in advanced countries while it is about ninety percent (90%) in developing countries (Broadway, 2013). With the growing number of cutting edge technology, clinicians are able to determine the signs and symptoms of glaucoma using optic nerve imaging (Ou, 2014). The tools used are fundus camera, Optical Coherence Tomography, Heidelberg Retina Tomograph and Nerve Fibre Analyser. A fundus camera is usually used to track retinal pathology, …show more content…
Here, the optic disc will be calculated for its cup-to-disc ratio (CDR), whether it obeys the Inferior, Superior, Nasal and Temporal (ISNT) rule and finding the thickness of the neuroretinal rim based on quadrant method approach. The software allows user to manipulate the retinal image by using different filter as well as zooming into the image for better identification. In terms of database, user can create new patient profile and update current patients information. Users can generate report based on the