Abstract— retina, with a diameter of approximately 5.5 mm

Abstract— This article reviews the existing approaches that are used for computerized detection of Macular Edema (ME), which is one of the common causes of blindness among majority. The unusual leakage and accumulation of fluid inside the macula from broken blood vessels within the nearby retina ends up in Macular Edema. Any disorder that damages blood vessels inside retina can result in ME. The signs of ME are not apparent in the early stages and once diagnosed at its advanced stages, the recovery is challenging. Optical coherence tomography (OCT), a modern day eye exam approach which gives cross sectional location of retinal layers can be utilized for the earlier detection of ME. Different algorithms were implemented to detect ME from OCT images. This article focuses on identifying a computerized algorithm that could better detect ME at earlier stages with great level of accuracy. Introduction:The human eye, that reacts to light and pressure is one among the most compounds organ in our body. Though small in size, it is constituted by different structres that makes vision possible. There are three layers which constitute human eye. Sclera is the outer layer that protects the eye ball. Cornea is a transparent membrane which forms the outer coating. It will provide a protection to iris and pupil. The main function is to focus light onto the retina. Beneath sclera, the second layer exists which is called choroid. It is a vascular layer which has blood vessels and is responsible for providing nourishment to the eye. Beneath choroid, there exists retina, the inner most layer of an eye. Retina is responsible for eye vision and pigmentation with the presence of photoreceptors 1. The macula is the small area at the centre of the retina and is responsible for central vision. It determines what we see straight in front of us, at the centre of our field of vision. It is a very important part as it gives us the vision needed for basic activities such as reading and writing, and the ability to appreciate color etc 2. It is an oval-shaped pigmented area near the center of the retina, with a diameter of approximately 5.5 mm in human eyes 2. Near the center of the macula is a tiny dip packed with light-sensitive cells called fovea 3. The fovea picks up the finest details of central vision. The basic structure of human Eye and macula is shown in Figure 1 and Figure 2 respectively.A. Macular Disorders     Macular disorders mainly damage the macular region of the retina, and can affects the central vision of a person 3. There are different types of macular disorders, but some common ones are Macular Edema (ME), Central Serous Retinopathy (CSR), Macular Hole (MH), Age related Macular Degeneration (AMD), Choroidal Neovascularization, Pigment Epithelium Detachment and the Förster–Fuchs retinal spot 3. Most of these macular disorders are curable if diagnosed at an early stage. The common symptoms of macular impairments includes 


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