From Sunup to Sundown: The Role of Light in Eye Health

Light is essential to our general health and day-to-day operations. Its ability to affect the neural circuits in your brain is even more intriguing, a phenomenon still being extensively studied. The intricate relationship between light and our eyes is what gives humans the ability to see. Natural light, particularly sunlight, is crucial for maintaining eye health as long as excessive exposure to it is avoided.

Without light, sight would not be possible; nevertheless, not all light is created equal. Therefore, you must consciously select the light that will be most helpful to your vision with the help of an optometrist in Milwaukee.

Various Forms of Light

Our eyes interpret each light wavelength as a different color. Violet light has shorter visible light wavelengths. The visible light turns blue, green, yellow, orange, and finally red, which has the longest wavelength, as the wavelengths increase.

Most of the light we use—such as that from a bulb or lamp or sunlight—combines all the apparent light wavelengths: white light. We find it challenging to distinguish the colors when blended; hence, true to its name, we perceive the light as white.

Blue Light

“Blue light” refers to a third of all the light we see. Sunlight is the primary blue light source, and fluorescent lighting, computer monitors, electronic gadget screens, and LED TVs are examples of artificial sources of blue light. Prolonged exposure to concentrated blue light can harm the eyes due to the human eye’s poor ability to filter out blue light. It can damage the retina’s light-sensitive cells, speeding up macular degeneration and potentially causing permanent visual loss.This is why macular degeneration screening is essential.

Natural Light

While it is true that prolonged exposure to the sun’s ultraviolet (UV) rays without protection can harm the skin and the eyes, recent research has shown how natural light can promote healthy eye development in children and promote healthy biorhythms as we age.

Nearsightedness in Children is Less Likely When There is Natural Light

It is believed that exposure to the sun for at least 3 hours a day can help reduce the risk of nearsightedness, or myopia, as it is more popularly known, in children and young adults. Spending time outside enhances natural light exposure and triggers the eye’s natural production of dopamine, which supports healthy ocular development. Contact lens examination in Milwaukee is vital for young adults who use them.

The Benefits of Natural Light Exposure for Seniors

According to research, a specific section of the light spectrum, known as blue light, helps keep biological rhythms in sync in older people. Age causes the eyes’ lenses to become less effective at absorbing blue light. As a result, the brain’s capacity to make melatonin, which is crucial for controlling sleep-wake cycles, decreases with time.

That leads to a higher risk of insomnia and other sleep-related issues. However, diabetes can also cause the eye lenses to be less effective, so it is also advisable to undergo diabetic eye exams in Milwaukee in such a case.

The Bottom Line

Light plays a crucial part in your vision, so selecting a light that will benefit your eyes is essential.