I. Introduction
The macula is the part of the eye that is responsible for central vision, affecting daily tasks such as reading, driving, and recognition. In color retinal fundus images, the macular region is usually described as a darker region of the retina located temporally to the optic nerve head, and generally growing darker towards the macula centre, due to increased pigmentation. Within the macula is the highest concentration of photoreceptors in the eye. This makes it a key component of visual acuity and color vision.