The heart of fundus is macula, how to maintain macula
“Bucket refers to the southeast, dimension is Lixia, all things grow up here, so the name Lixia also.”
But then there’s the intense outdoor ultraviolet light. Is sun protection on your agenda? Uv rays can tan and burn the skin, but did you know that your eyes need sun protection too? Do not do a good job of eye sunscreen, although UV rays can not tan your eyes, but your eyes – macula, causing a “devastating” blow!
How to protect the eyes in summer? How to protect the macula from UV rays? Today, let’s talk about the particularity of macula and protect macula from “hiding”, “blocking” and “eating”.
Specificity of macula
The first thing to understand is that the macula is not a “spot” (traditional freckles, etc.), but rather – an important physiological area of the retina.
Located in the center of the retina, the macula is an important part of the central retinal visual cells that are most enriched and determine visual function. It can recognize optical signals such as color, shape, size and distance, and is responsible for the presentation of fine vision.
It can be understood that the retina of the human eye is equivalent to the negative film of the camera, and the macula area is the most important area in the retina.
Because it is rich in lutein, the surrounding tissue looks yellowish in color, so it is called macula. The central depression of the macula, called the fovea, is where vision is most acute and contains the cones responsible for vision and color perception. If the macula is abnormal, even if the scope of the abnormality is small, it will cause irreversible effects on vision.
Studies have shown that long-term chronic light damage, choroidal vascular sclerosis, retinal pigment epithelium aging are the main causes of macular abnormalities.
With the continuous improvement of aging in China in recent years, the incidence of macular degeneration is also increasing year by year. According to statistics, the incidence of macular degeneration in people over the age of 50 in China is about 15.38%, that is, in people over the age of 50, there are 1 in 6 people suffering from macular degeneration.
How to prevent light damage and protect our macular area in summer? Here are three ways to start:
On days when the sun is strong in summer, especially in the afternoon, try not to go out and reduce outdoor activities.
Even if you have to go outside, try to walk in the shade and don’t look directly at the sun with your bare eyes.
Don’t be afraid of trouble, once you go out on a sunny day, sunscreen sunglasses, umbrellas, hats, etc. should be worn or worn, which can effectively block and reduce harmful light into the eyes and damage visual cells, prevent the macular area cells from aging too quickly and apoptosis.
Add more fresh vegetables and fruits, such as blueberries, kiwi, strawberries, oranges, spinach, corn, coriander, etc. Because it is rich in antioxidants and vitamin C, it can timely supplement the nutrients of the eyes and help the eyes repair aging and damaged cells.
In particular, the supplement of lutein can form an effective blue light filter in the retina of the human eye, and there is an antioxidant effect, which can remove harmful free oxygen and free radicals in the retina, reduce retinal oxidative damage, protect retinal cones and rods, and play a pivotal role in fundus health.
How to choose лютеин
There are two kinds of lutein products, one is lutein, one is lutein ester, so what is the difference between the two?
Lutein ester is the precursor of lutein, which is the product of combining lutein with many fatty acids. Lutein ester can obtain high purity lutein through a series of complex extraction and crystallization. Lutein, not lutein esters, is present in human tissues. Therefore, lutein can directly enter the intestine and be effectively absorbed by the human body, and studies have shown that the bioavailability ratio of lutein and lutein ester is about 5:1. Obviously, the effect of lutein supplementation is much better.
Eye nutrition or lutein
Lutein plays a protective role for the eyes, which can not be replaced by lutein ester. According to the survey, in developed countries, 97% of ophthalmologists have recommended lutein dietary supplements to patients, of which 93% recommend lutein and only 7% recommend lutein esters. So lutein can play a better eye care effect, especially the high content of lutein.
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