Things About Your Eyesight
1. Reading in dim light will ruin your eyesight
Your parents might have told you off when they found you reading under the bed covers at a young age, scaring you to sleep with warnings of the damage you were doing to your eyesight. But were they right?
The answer is yes and no. Your eyes are actually well designed to adjust to different levels of light. If you’re reading in dim light, your pupils will become bigger temporarily to take in more light to your retinas. Special cells called rods and cones will then use this light to send information to your brain about what you’re looking at – in this case, your book or magazine. Some people may find that this strains their eyes after a while, but others won’t have a problem.
2. Watching TV will give you square eyes
You’ve probably heard people saying that watching too much TV will give you square eyes. This is false.
Watching a lot of TV may make your eyes feel tired or strained. After a good night’s rest, you’ll likely be back to normal.
That’s not to say that watching a lot of TV is good for your health. It’s a sedentary activity, after all. If you’re spending hours in front of the TV every day, it could be contributing to other health problems indirectly, eg. obesity. In addition, if you sit too near to the TV screen, it will be considered ‘near work’. Increased near work increases the risk of myopia in children.
3. Carrots are good for your eyesight
Carrots are rich in beta-carotene, a pigment abundant in fruits and vegetables, that your body converts to vitamin A. And it’s true that vitamin A is essential for good eye health.
But if you’re already getting the vitamin A your body needs (quite likely if you’re eating a healthy, balanced diet), eating extra carrots won’t make your bad vision better. In fact, this will only make a difference if you have a vitamin A deficiency caused by something like poor diet, malabsorption (a condition where you have a problem หากคุณสนใจเล่นพนันออนไลน์ที่ดีที่สุด สามารถสมัครสมาชิก UFABET ได้ที่นี่ พร้อมรับโปรโมชั่นพิเศษสำหรับสมาชิกใหม่ absorbing vitamins) or alcoholism and liver problems, in which case your doctor will be able to prescribe medications and advise lifestyle changes to improve your health and eyesight.