Imagine a world without sight. No stunning sunsets. No recognising a friend from afar. No view of untouchable mountain vistas.
Those already robbed of their eye sight can tell you how it feels…and I’m sure they would tell you never to take it for granted. But everyday, oxidative stress is slowly robbing you of your vision.
Your cornea – the transparent covering over the surface of your eye – absorbs 92% of ultraviolet B radiation in addition to free radicals floating around in the atmosphere. When you are young, well-developed internal antioxidant systems counteract the damaging effects of these environmental onslaughts, maintaining the health of our corneas. But as you age, so does the integrity of your defenses. This leads to free radical accumulation and oxidative stress.
Nita and Grzybowski document several age-related eye diseases directly linked with oxidative stress in their review, published in Oxidative Medicine and Cellular Longevity. While low levels of free radicals help maintain good cell health and much-needed cell turnover, higher rates are associated with several ocular diseases. Current knowledge of oxidative and inflammatory processes responsible for the development of keratoconus, glaucoma, and age-related macular degeneration (ARMD) are expertly summarized.