In summer, the sun is too strong, so you must do a good job of sun protection when you go out.
If you apply sunscreen and put on the sun umbrella, you will go out. If you think about it carefully, have you missed one more item?
Yes! Don’t forget, your eyes also need sun protection, and the simplest and most practical way is to wear sunglasses.
Wearing sunglasses is not only for concave shape, but also plays a great role. It can not only prevent ultraviolet rays from entering the eyes, but also prevent various eye diseases.
However, can you wear sunglasses? Do your sunglasses protect against the sun? How do we choose sunglasses?
Look at the following detailed strategy, you will understand.
Sunlight hurts the eyes
A large amount of ultraviolet rays in sunlight are the main culprits for aging and wrinkling our skin.
These ultraviolet rays will not only hurt our skin, but also our eyes. Our fundus, cornea and lens will be damaged by it, and these ultraviolet rays will also cause our eye diseases.
1. Keratopathy
Cornea, located in the outermost layer of the ocular surface, is easy to cause keratopathy when irradiated by ultraviolet rays for a long time. Such as solar keratitis, photophobia of the eye, and even more serious cases will suffer from vision loss.
2. Cataract
Cataract, which is frequently seen by residents and elderly friends in plateau areas, is also closely related to ultraviolet radiation, which can make the lens turbid.
3. Pterygium (a common ophthalmic disease that grows a piece of meat on the surface of the eye)
Epidemiological investigation also found that the incidence rate of pterygium (a common ophthalmic disease) is relatively high in plateau areas, farmers and fishermen, which is also due to their long-term exposure to ultraviolet rays.
4. Macular degeneration on fundus retina leads to vision loss and even blindness.
Ultraviolet rays can also penetrate into fundus, causing macular degeneration, vision loss and even blindness.
A US study found that people who have been exposed to the sun for more than 5 hours a day are twice as likely to develop age-related macular degeneration as people who have been exposed to the sun for no more than 2 hours.
However, a pair of qualified sunglasses can absorb or reflect some ultraviolet rays. When the strong light becomes weak, the eyes will feel comfortable.
More importantly, wearing sunglasses can not only protect eyes from ultraviolet rays, but also prevent the aging of skin around eyes.
Moe Wa can also wear sunglasses, but some patients with eye diseases are not suitable.
A mother asked, Star babies are cool and adorable in sunglasses, and I also want to wear them for my babies, ok?
As long as the eyes are healthy, people of all ages can wear sunglasses.
Children can protect their eyes by wearing sunglasses in strong sunlight, but it is not recommended to wear them indoors or for a long time without taking them off. After all, their visual function is still immature, and wearing sunglasses for a long time may lead to amblyopia. Moreover, children, like patients with eye diseases, should pay special attention to choosing sunglasses:
1. Children should choose sunglasses frames with appropriate width.
The width of the frame should be suitable for children to wear.
2. Children should choose lighter sunglasses frames.
Children’s nose bridge is relatively low, so they should choose a style with a lighter frame and a nose support on the nose bridge.
[Some sunglasses are integrated and have no nose rest. They are easy to fall off when worn and cannot protect against sun.] When purchasing, children should try them on to see if they feel dizzy, headache and other discomfort.
3. Attention should be paid to the development of eye diseases when purchasing patients with eye diseases.
If patients with eye diseases want to wear sunglasses, they should pay attention to the development of eye diseases first. For example, patients with early cataract should wear sunglasses, which can filter ultraviolet rays under strong light and prevent further damage to the lens caused by ultraviolet rays.
However, cataract develops to the middle and late stage, you cannot wear sunglasses. At this time, the intraocular pressure is on the high side. If you wear sunglasses, the pupil will be dilated and the intraocular pressure will rise at the same time, which will lead to discomfort symptoms such as eye distending pain.
If the old friend’s eyesight drops, he should go to the ophthalmology department to check whether there are cataracts, macular degenerative diseases, diabetic eye diseases, etc. If there are such fundus diseases, his eyesight is already poor, and he wears sunglasses again. He is in a dark environment and is not very safe.
Wear it outdoors and take it indoors.
1. It is best not to wear sunglasses at night or indoors.
Many stars wear sunglasses at night and indoors. Although it looks cool, in fact, it is unscientific.
Everyone had better not wear sunglasses at night or indoors.
Sunglasses, which are mainly used to prevent ultraviolet rays, lose the significance of protection when worn at night and may also cause eye diseases.
Originally, we were in the dark light, the pupil is dilated. Once wearing sunglasses to block the light, the pupil will dilate even more. If congenital anterior chamber angle development abnormality or narrow anterior chamber angle of people, for a long time, will intraocular pressure rise, secondary glaucoma.
2. Walk outdoors at noon in summer, live or play in plateau areas, and wear sunglasses when going to islands and mountains.
It is recommended to wear sunglasses when walking outdoors from 11 to 15 in summer when the sun shines at noon. In addition, sunglasses are also recommended if the weather forecast says sunspots are frequent and ultraviolet rays are strongest during this period.
Similarly, sunglasses are also recommended to live or play in plateau areas and go to islands, mountains and snow to prevent too much harmful light from entering the eyes.
3. Sunglasses are recommended for patients with pink eye and trachoma in summer.
In summer, pink eye and trachoma are prevalent, and patients will be photophobic. Sunglasses can be worn to cover the light to prevent eyes from crying due to the stimulation of light, but it is also not recommended to wear them indoors.
How to choose sunglasses correctly?
1. Identify the brand and make it safer.
High-quality sunglasses can filter ultraviolet rays without affecting visual effects. However, inferior sunglasses not only cannot block ultraviolet rays, but also seriously reduce the transmittance of lenses, making pupils larger and ultraviolet rays easy to enter in large quantities.
Whether a pair of sunglasses has anti-ultraviolet function, we can’t see it with naked eyes. Doctors believe that the most important thing is to purchase products with national quality supervision approval documents and certificates through regular channels.
It is a safe choice to identify the brand to buy. It is necessary to check whether the product has signs and instructions such as product name, color, quality grade, manufacturer name and trademark, UV protection degree, polarized light, etc.
2. Cool color, anti-harmful
The best anti-ultraviolet effect is brown, dark green and gray. The lenses of these three colors can absorb almost 100% ultraviolet rays, and the imaging effect is the best, and the eyes are not easily tired.
Secondly, there are red and yellow lenses, which have better barrier to some light with shorter wavelengths, while other protective effects are slightly worse.
3. The more it fits, the more sun-proof it is.
When buying sunglasses, you must try them on. Pay attention to the fit between the lens and the face. Sunglasses with radians fit the face better, so that the sunscreen effect will be better.
Just like wearing a sun hat, if the brim of the hat is too small, it cannot cover the scattered light from other directions. The sun protection effect is definitely the best if the eyes are wrapped around and buckled around the eyes.
4. Different environments, different sunglasses
Drivers who always drive on uncovered highways, vacation at the seaside and lake, and fishermen will encounter strong reflection from the water surface, so they can choose to buy sunglasses with polarized lenses. Because wearing polarized lenses under strong light can make the visual image clearer.
In summer, the water surface and road surface have a lens effect, and the heat wave has a mirage feeling, which can be offset by polarizers.
In the snow, you should choose mirror sunglasses. Reflect the light back to prevent more light from entering the eyeball and damaging the retina.