Should you use sunglasses?
Sunglasses block infrared and UV light from reaching your eyes
Your body requires exposure to the full spectrum of light as a signal to synthesize important hormones such as melatonin, glucocorticoids, and sex hormones
Also direct light exposure to your retina, dilates its blood vessels. This leads to increased blood flow, which rejuvenates it and is protective to your vision
Sun light to your eyes is required to generate melanin. Melanin is the “tan pigment” that darkens your skin and prevents you from getting sunburned
So by using sunglasses you are increasing your risk of sunburn
Avoid using sunglasses if possible. Exceptions include scenarios where you are looking directly at the sun and have a task to perform, such as skiing, driving or operating machinery.