At birth, the visual system is immature, with a visual acuity of approximately 0.05. During the first few months of life, infants and children are able to progress and improve their visual acuity and stereo vision. In the first few weeks of life, the retina, optic nerve, optic nerve, and visual cortex begin to mature. The central macular recess, the most visually acute part of the retina, matures near the age of four. Visual stimulation is essential for the development of normal vision. The development of visual pathways within the central nervous system requires the brain to receive equally clear, focused images from both eyes. Any lesion that severely interferes with or inhibits the development of the visual pathway in the brain can lead to the development of amblyopia.