Among these five layers of tissues, there are many pigment cells in anterior limiting membrane, stroma layer and posterior epithelial layer, and the amount of pigment contained in pigment cells determines the color of iris. The more pigment contained in pigment cells, the darker the iris and the darker the eyeball. The less pigment contained in pigment cells, the lighter the iris color and the lighter the eyeball color.
The pigment content in pigment cells is consistent with skin color, which is related to the genetic relationship of race. Orientals are colored people, and there are many pigments in the iris, so their eyes look black. I guess your skin is white, too
Let me tell you a good way to improve your eyesight, but you must try to reduce eye fatigue and protect your eyes reasonably. That is the most effective way to control and improve the degree of myopia. Here is a reasonable way to use eye hygiene and exercise eye muscle adjustment function. You can try it. If you can try for three months as I said, you can effectively control your eyesight decline and gradually improve your eyesight. As long as you spend more time caring about your eyes: 1. You must pay attention to eye hygiene, the working and reading environment must be bright and soft, you must watch TV and surf the Internet in moderation to avoid eye fatigue, direct glare and eye irritation, and the reading object should not be too small; 2. If you have time, you can go to more open areas, see the blue sea, see the green fields and flowers in the park, make yourself feel happy, relax and relieve eye fatigue; 3. Usually eat more fruits and vegetables rich in vitamin C, and eat more foods rich in vitamins A and D, such as fish, eggs, milk, pork liver and carrots. , help to restore eye fatigue; 3. Avoid eye fatigue, arrange work and rest time reasonably, and let your eyes relax in time; 4. Exercise the adjustment ability of binocular muscles, and often go to the heights to see the distance. If you have time, you can also take a Zhonghua brand pencil, walk to a high place, hold out your hand with the pencil, so that your eyes can see every word on the pencil, and then look into the distance, so that your eyes can see the farthest things, or advertisements, or words. You must see every detail clearly, and then come back to look at the pencil in your hand, so that your eyes can see every word on the pencil again, and so on. Look at the nearest and farthest points clearly, exercise 50 times a day to exercise your eye adjustment function, and then use Xinleton eye drops to assist eye drops. Xinleton eye drops contain panthenol and vitamin B6, which can activate eye cells, improve eye adjustment function and eliminate eye fatigue. I believe that your eye vision (as long as it is not congenital myopia) will be restored and improved (but it cannot improve astigmatism). Be sure to stick to it; If it can be done, it will be effective in three months. This method is the simplest, most effective, most economical and safest! For pseudomyopia, the effect is particularly prominent. Many people have tried it, and they have improved to varying degrees.