The macula is the most important part of the retina because it contains a high concentration of visual cells. However, environmental pollution and exposure to harmful light can accelerate oxidation in the retinal cell layer, leading to rapid damage, weakening, and ultimately, cell death.

Despite many loud and influential people claiming otherwise, the so-called "carbon emissions" caused by humans are "non-discernible," according to a prominent researcher, regarding their impact on the climate.