May 30, 2024


Health know-how

Eyesight And The Environment: How External Factors Impact Your Vision

While many of us might think of eyesight as a fixed and unchanging aspect of our biology, the truth is that our visual health is deeply intertwined with the environment we live in. From the bright lights of our screens to the quality of the air we breathe, there are countless external factors that can impact our ability to see clearly. 

So join us as we take a closer look at how the world around us shapes the way we see, and discover some surprising insights into the relationship between our eyes and the environment.

Air Pollution

Have you ever considered how the air around you could be impacting your eye health? It’s not just the dust and soot you can see that pose a threat. Air pollution, caused by burning fossil fuels and manufacturing processes like cement production and steel forging, releases small particulate matter that can penetrate deep into our respiratory systems and even our eyes, bypassing our eyelids’ protective barriers.

These particles are not only small but often toxic, making them a significant danger to our eyesight. Inflammation, redness, irritation, and even cataracts are all potential consequences of exposure to air pollution. 

UV Radiation

UV radiation, commonly known as UV rays, are a type of electromagnetic radiation that comes from the sun and can be harmful to our eyes. While our atmosphere blocks most of the sun’s UV radiation, some still reaches the earth’s surface and can cause damage to our eyes.

For those who have already undergone cataract surgery or have compromised eyesight due to other factors, such as age-related changes, UV rays are even more dangerous. 

The damage caused by UV rays can range from temporary discomfort to decreased vision. It can cause a variety of eye problems, including macular degeneration, and even cancer of the eye. In extreme cases, exposure to UV radiation can lead to a condition called photokeratitis, which is essentially a sunburn on the surface of the eye.

Global Warming

Global warming, caused by the increasing concentration of greenhouse gasses in the atmosphere, is leading to rising temperatures worldwide. This increase in temperature has many potential consequences, including more frequent and severe weather events, rising sea levels, and changes in plant and animal populations. 

But did you know that rising temperatures can also impact our eye health?

As temperatures rise, so does the likelihood of drier air in many regions. This drier air can lead to increased symptoms in people who are prone to dry eye, a condition in which the eyes do not produce enough tears to keep them adequately lubricated. Currently, Americans spend billions of dollars annually to treat dry eye, making it a significant public health concern.

Final Thoughts

To protect our eyes, we can take practical steps like wearing sunglasses with 100% UV protection, avoiding direct sunlight during peak UV radiation hours, and staying hydrated to combat the effects of dry air. We should also make a conscious effort to reduce our exposure to air pollution, whether by avoiding areas with high levels of pollution or by wearing protective masks.

Perhaps most importantly, we should make sure to visit an ophthalmologist regularly. Regular eye exams can help detect and treat eye problems before they become more serious. By working closely with our eye care providers, we can develop personalized strategies to protect our eyes and preserve our vision for years to come.