Category: Uncategorized

In the scorching summer sun, many young people wear a pair of sunglasses, which not only protect against the sun but also showcase their fashion taste. In the eyes of many elderly people, wearing sunglasses in summer is something that fashion – chasing young people do. However, in fact, summer sun protection is equally important for the elderly, as it can effectively prevent the occurrence of certain eye diseases.

Excessive ultraviolet (UV) rays directly hitting the eyes in summer can cause corneal edema, leading to symptoms such as tearing and pain, which affect vision. According to a report in a foreign authoritative ophthalmology journal, prolonged exposure to the sun can prematurely trigger “age – related macular degeneration (AMD)”, which is one of the main factors causing vision loss in middle – aged and elderly people. Moreover, for patients with eye diseases such as cataracts, keratitis, conjunctivitis, and retinal detachment, wearing sunglasses can promote the recovery of the diseases and bring sufficient coolness and protection in the hot summer.

When choosing sunglasses, the elderly had better select lenses that can block UV rays. They must carefully check the labels, because a higher price does not necessarily mean stronger protection. The elderly can choose different sunglasses for different occasions. For example, when fishing, polarized sunglasses should be chosen, which can eliminate strong light from all directions and make the vision clearer. When the elderly go hiking in the suburbs, gray or brown sunglasses are the best choices for UV protection.

There are also some precautions for wearing sunglasses. When crossing the road or entering a shady place, the sunglasses should be taken off in time. This is because when moving from a bright place to a darker place or to a place with dense traffic, the eyes need an adaptation process, which easily leads to dizziness and blurred vision. Taking off the sunglasses in time is safer. The time for wearing sunglasses should not be too long. It is recommended to take them off and rest for a while every one or two hours, and gently massage the around the eyes. Otherwise, symptoms such as headache, irritability, blurred vision, and even vision loss may occur. The lenses of the elderly are aged and swollen, so they cannot wear sunglasses for a long time. Otherwise, it will cause the accumulation of the iris root, leading to the blockage of aqueous humor outflow and the increase of intraocular pressure. In addition, the elderly with glaucoma, retinitis, color blindness, and night blindness are not suitable for wearing sunglasses.

In addition to protecting the eyes with sunglasses, it should also be noted that UV rays reach their maximum intensity from 10 a.m. to 2 p.m. At this time, the elderly should try to reduce going out or avoid places that can reflect light, such as watersides and sandlands, as these places will increase the chance of light projecting onto the eyes.

Polarized sunglasses block glare in sunlight, thereby protecting the eyes from UV damage. This is all due to the polarized film filter made of metal powders (such as iron, copper, nickel, etc.), which “combs” messy light into organized light as it enters, making the light reaching the eyes softer.

Polarized sunglasses can selectively absorb specific wavelengths of sunlight by using fine metal powders (iron, copper, nickel, etc.). In fact, when light hits the lens, it is reduced through a process called “destructive interference”. That is, when certain wavelengths of light (such as UV-A, UV-B, and sometimes infrared) pass through the lens, they cancel each other out on the inner side of the lens (facing the eyes). The overlapping of light waves is not random: the peak of one wave meets the trough of a nearby wave, leading to cancellation. Destructive interference depends on the lens’s refractive index (the degree to which light bends when passing through different materials from air) and its thickness. Generally, the thickness of the lens changes little, while the refractive index varies with differences in chemical composition.

Polarized sunglasses provide another mechanism for eye protection. The reflected light from asphalt roads is a specific type of polarized light, which differs from direct sunlight or light from any artificial source in terms of order. Polarized light consists of waves vibrating in one direction, while ordinary light consists of waves vibrating in random directions—similar to the contrast between a chaotic crowd and soldiers marching in step. Reflected light is generally ordered, and polarized lenses are particularly effective at blocking it due to their filtering function. These lenses allow only polarized waves vibrating in a specific direction to pass through, “combing” the light. For road reflections, polarized sunglasses reduce light transmission by blocking waves vibrating parallel to the road. In fact, the long molecules of the filter layer are oriented horizontally, absorbing horizontally polarized light. This eliminates most reflected light without reducing the overall illumination of the surrounding environment.

As a professional eyewear supplier, we specialize in acetate eyewear, metal eyewear, and buffalo horn eyewear.

Summer is here, and sun protection is a must. While many fashion conscious women focus on protecting their skin, the eyes our windows to the world are often overlooked. UV protection for the eyes is just as important, and sunglasses have become a must-have accessory for both safety and style. But for people with nearsightedness, how can you choose the right sunglasses?

Three Types of Prescription Sunglasses Lenses:
Prescription sunglasses lenses generally fall into three categories:
Dyed lenses, polarized lenses, and photochromic lenses. These three types share a key advantage:
They are compatible with all optical frame and sunglasses with low curvature, combining optical frame with sun protection into one attractive eyewear product.

1. Dyed Prescription Lenses
Main Features:
Dyed resin lenses are cost-effective and budget-friendly. However, standard dyed lenses may offer limited UV protection if not treated with additional coatings.

2. Polarized Prescription Lenses
Main Features:
Polarized lenses are excellent at blocking UV rays and reducing glare, making them ideal for outdoor use. However, they are relatively more expensive and not suitable for indoor wear. In the current market, most polarized lenses are only available in a refractive index of 1.50. For those with high myopia, this means thicker lenses.

3. Photochromic Prescription Lenses
Main Features:
Photochromic lenses automatically adjust their tint based on UV exposure, making them suitable for both indoor and outdoor use. However, their performance while driving may not be ideal, as the UV index inside a car can be inconsistent, affecting their ability to darken properly.

Key Factors to Consider When Buying Prescription Sunglasses
✅ Color Depth of the Lenses
Lenses that are too light offer minimal light filtration, while overly dark lenses can affect vision clarity. Generally, brown, gray, and dark green lenses strike a good balance. These colors effectively reduce glare without distorting natural colors.
✅ Material Matters
Acetate eyewear is trendy, colorful, and perfect for those who want to express their individuality.
Metal eyewear offers a more refined, elegant look with a premium finish.
Choose based on your personal style and comfort.

✅ UV Protection Labels
Aside from making sure the lenses are free from scratches, bubbles, or imperfections, it’s important to check for UV protection labels like:

“100% UV Protection”
“UV400”
“Blocks All UV”
CE mark
These labels are your only reliable indication of effective UV protection.

✅ Lens Quality Test
Hold the sunglasses about 30 cm from your eyes and look at a fixed object through the center of the lens. Move the glasses slightly up and down—if the object moves or appears distorted, the lens is not flat and likely of poor quality. Avoid such products.
✅ Comfort Comes First
Trendy doesn’t always mean practical. Choose sunglasses based on your face shape, ensuring the size and curvature suit you. During the trial, check for dizziness, distortion, or poor visibility. High-transparency and polarized lenses are generally better for long-term comfort.

As a professional eyewear supplier, we specialize in acetate eyewear, metal eyewear, and buffalo horn eyewear, offering customized solutions for eyewear products. With the right sunglasses, nearsighted individuals can enjoy crystal-clear vision, full UV protection, and stylish flair all summer long.

With the intense sunlight of summer, it’s often difficult to keep your eyes open under the blazing sun. Whether you’re driving or walking outdoors, throwing on a big pair of sunglasses may seem like the right move. But have you chosen the right sunglasses? Choosing the wrong sunglasses can do more harm than good, causing eye strain, reducing visibility, and even contributing to traffic accidents. Don’t underestimate the small size of sunglasses, there are many common misconceptions to avoid.
Myth 1: The Darker the Lenses, the Better?
Many people assume that darker lenses offer better UV protection. In reality, UV protection depends on the coating on the lenses, not their color. In fact, overly dark sunglasses can cause your pupils to dilate more, letting in more harmful rays if the UV filter is inadequate. Especially for long-distance drivers, dark lenses can increase eye fatigue and pose risks when moving from bright sunlight into darker environments like tunnels.
Myth 2: Polarized Lenses Are Always the Best?
While polarized lenses are excellent for reducing glare from water, snow, or other reflective surfaces—making them ideal for fishing or skiing—they’re not always the best for driving. In tunnels or low-light situations, polarized lenses can darken your view suddenly and unexpectedly. They can also distort colors from LCD screens or LED traffic lights. If you do choose polarized lenses for driving, opt for high-quality optical lenses, and remember to remove your sunglasses before entering tunnels—blinking more frequently can also help adjust your vision.
Myth 3: Driving Without optical frame Is Fine?
Some drivers with mild nearsightedness think it’s okay to drive without their optical frame . While that may be true under normal conditions, adding sunglasses without a prescription can further strain your eyes and reduce visual clarity,similar to driving at night with impaired vision. If you’re slightly nearsighted and want to wear sunglasses while driving, be sure to use prescription lenses tailored to your eyesight.
Myth 4: Stylish Colors Are Suitable for Driving
Trendy sunglasses come in all sunlense colors: pink, purple, blue and they may look great on Instagram, but they’re not ideal for driving. These lenses can alter your perception of color and distort the spectrum. For driving, neutral gray lenses are the safest, as they maintain natural color balance. Dark green is another good option. Brown and yellow lenses can enhance brightness and are helpful in foggy or dusty environments.

Choose Sunglasses That Fit Your Needs
When driving in the summer, always select sunglasses based on your specific needs. The right pair not only improves safety but also enhances comfort and visual clarity.
As a professional eyewear supplier, we specialize in acetate eyewear, metal eyewear, and buffalo horn eyewear,offering style, function, and premium craftsmanship.

With the arrival of summer, the sun becomes increasingly intense. Many people enjoy wearing sunglasses,not only to block the harsh sunlight and protect their eyes, but also to enhance their fashion sense. For those who are nearsighted, fashion prescription sunglasses are also an option. But how should you choose the right pair? Here’s some helpful information about prescription sunglasses.

Origins of Prescription Sunglasses
Prescription sunglasses were initially made by dyeing resin lenses in a dye solution at 80–90°C. These tinted lenses are convenient and visually appealing, with a variety of styles and color options. However, they usually need to be custom-made, which means they can’t be picked up immediately, and they have specific requirements regarding prescription strength and lens curvature.

Because of the advancements in lens manufacturing technology, prescription sunglasses have overcome many of these limitations. Although still custom-made, newer models have more flexible requirements regarding prescription strength and base curvature. In fact, polarized prescription sunglasses have also been developed. Their appearance is similar to that of regular sunglasses—stylish and perfect for travel or daily wear.

How to Choose Prescription Sunglasses

1.Choose a Smaller Frame Size
When selecting sunglasses, go for a smaller lens area—this helps create a lighter and more aesthetically pleasing pair of sunglasses. People wear sunglasses not only to block UV rays and correct nearsightedness, but also for comfort. The comfort level of a pair of sunglasses is closely tied to its weight.

2.Choose the Right Material: Acetate eyewear or Metal eyewear material
Acetate sunglasses offer vibrant, fashionable color options that are easy to pair with various outfits. When made with acetate frame or metal frames, prescription sunglasses are both attractive and comfortable to wear.

3.Avoid Frames with Large Curvatures
Sunglasses with a large frame curvature are not ideal for prescription lenses. The thickness of the lenses can make them uncomfortable, often causing dizziness. A flatter frame design is more suitable for those with vision correction needs.
Prescription sunglasses are customized based on your specific prescription. They allow nearsighted individuals to see clearly while protecting their eyes from strong sunlight, making them ideal for outdoor activities and daily use.

As a professional eyewear supplier, we specialize in crafting high-quality acetate eyewear, metal eyewear, and buffalo horn eyewear.

Sunglasses aren’t just a tool to block out the sun—they’re also a powerful accessory that adds a stylish edge to your look. With a wide variety of materials such as acetate sunglasses and metal sunglasses, picking the right pair to complement your sunglasses style and personality is key. Not sure how to choose? Let us walk you through it.

Tip 1: Choose the Right Lenses
Lenses are the soul of a pair of sunglasses—their quality directly impacts visual clarity and protection. Unlike optical frame lenses, sunglasses lenses come in a variety of types, each offering different benefits:

Anti-Reflective Lenses:
These lenses are coated with magnesium chloride to reduce glare and improve clarity. To test them, point the sunglasses at a light source—if you see purple or green reflections, they likely have anti-reflective properties.

Colored Lenses:
Chemical substances are added during production to tint lenses in different colors. These are commonly used in fashion sunglasses.

Coated (Tinted) Lenses:
Similar in effect to colored lenses, but the tint is applied to the surface rather than mixed into the material.

Polarized Lenses:
Ideal for outdoor activities, these lenses have a special vertical coating that blocks reflected light, reducing glare from surfaces like water or roads.

Photochromic (Transition) Lenses:
Also known as light-sensitive lenses, they contain silver halide that darkens under strong sunlight. Perfect for switching between indoor and outdoor use.

Tip 2: Choose the Right Frame Shape
Select the frame according to your face shape:

Wide face: Go for larger frames to balance proportions.

Narrow/slim face: Choose slimmer, more delicate frames.

Round face: Opt for bold, angular frames with stronger lines for contrast.

Tip 3: Check the Labels and Hangtags
Always check if the sunglasses offer UV protection. Hangtags also provide important info, such as where the product was made and what materials were used for the lenses.
Tip 4: Pick a Color that Matches Your Skin Tone

Darker skin tones: Brighter sunglasses colors provide a nice contrast.

Fair skin: Most colors will work.
Among all, light gray, brown, and smoky tones are considered premium choices. Dark brown and black are also popular. Red lenses, on the other hand, are typically reserved for snowy environments or sunbathing.

As a professional eyewear supplier, we specialize in premium-quality acetate eyewear, metal eyewear, and buffalo horn eyewear.

Have you learned how to pick the perfect pair? This summer, treat yourself to a beautiful and protective pair of sunglasses!