Final answer:
The retina becomes less shiny with age due to decreased activity of cells and reduced production of collagen and elastin. This leads to a thinner and drier retina.
Step-by-step explanation:
The retina becomes less shiny with age due to various factors that affect the skin and other tissues.
As we age, the cells in the skin, including those in the retina, become less active. They produce less collagen and elastin, leading to a thinner and drier retina, which in turn decreases its shine.
Additionally, the accessory structures around the retina, such as melanocytes and dendritic cells, also become less active, resulting in a paler skin tone.