Blue light emitted by computers and mobile phones can cause dry eyes. Lack of sunlight may be the cause of myopia, and blurred vision is the first sign of diabetes.
Working on the computer and constantly keeping a mobile phone in your hands and in front of your eyes causes dryness, burning and even headaches, whereas blue light can cause nausea. Our eyes need to rest, therefore you should adopt the 20-20-20 rule, which means every 20 minutes you should look away for about 20 seconds and look at something that is 20 meters away from you, according to the magazine „Prevention“.
Besides blue light, vision problems can be the result of vitamin D deficiency. One study confirmed that women who consume the recommended daily dose of vitamin D have a 44 percent lower risk of macular degeneration, a disease of the central part of the retina that destroys central vision, and is most common in older people.
The main culprit for poor night vision is oxidative stress. But blueberries can defeat it, since they contain anthocyanin, which improves night vision and increases blood flow to the eyes. Also, acne medications can cause problems with night vision, and they are associated with blurred vision, because these drugs increase the absorption of UV rays, which can cause damage to the cornea.
Blurring may be one of the first signs of type 2 diabetes, which prevents blood flow to the parts of the cornea, which can cause blindness.
Also, numerous studies have linked myopia with too much time spent indoors, which is especially common in children, so experts recommend sunlight, which reduces pupils, thus reducing the risk of blurred vision.