What are the origins of saddle bridge glasses?
Rimless glasses were introduced in 1880 and were popular until the 1950s. Rimless glasses made in 1880 and 1920 lacked a nose pad. Instead, they use a saddle bridge, so they were sometimes called saddle bridge glasses. Horses are the main means of transportation. Early rimless saddle glasses were designed to be close to the face. Rimless glasses with nose pads were introduced in 1921. The nose pad keeps the glasses farther away from the face. In addition, frames can be made much larger.
Costs are lower for online stores.
The most fundamental reason is cost. The cost is not just the cost of the glasses, and there are many other aspects of the cost. If it is an online store, it only needs a warehouse, a computer, a customer service, which can meet the needs. And if it has the factory direct sales, then the product purchase cost is lower. The online shop needs publicity fees. For a physical store, the superior location, high rent, water, electricity, and labor costs, a variety of optometry processing instruments are valuable. There is a lot of brand publicity, decoration costs. These aspects are the cost of physical stores to pay.
Possible effects of driver's lens color on driving
Color plays a very important role in your everyday driving experience -- red, yellow, and green traffic lights, among many other signs and signals, are designed to grab your attention and keep you safe. If everything you see is yellow, you may make the wrong decision at the red light and may cause an accident. To keep your vision clear in night and day conditions, anti-glare night driving glasses are not just for night driving.
What Are Progressive Lenses?
Your eyes change with your age. When your reach your 40s, you may find that it is difficult for you to focus between a book, a website on a computer screen and the conference room whiteboard. Progressive lenses are growing in popularity among people who need help seeing near, far and in-between.
Progressive lenses have grown in popularity and are one of the most common solutions to treat vision loss that occurs with age or presbyopia. Progressive lenses have a seamless increase in magnification from the top to the bottom of the lens, helping you see clearly at all distances with just one pair of glasses. The top portion of the lens enables you to see the far-away objects, the middle portion of the lens enables you to focus on the intermediate objects and the bottom to see objects close-up. The prescription changes little by little across the lens surface providing a gentle transition.
After knowing what the progressive lenses are, do you know what are the pros and cons of progressive lenses? If not, keep on your reading and we will show you some information.
The Pros and Cons of Shopping Glasses Online
Brick-and-mortar stores rely on a few or a dozen a day to make a profit, so the unit price is higher. Online stores have low costs. The profit can be made by volume, so the unit price is much lower. This is the advantage of online stores. The disadvantage of online stores is that it takes a lot of effort to get an optometrist, but optometrists have varying levels and attitudes. As a result, the prescriptions we get may not be entirely accurate. This can lead to uncomfortable glasses. The physical store glasses can try on. Choosing online glasses is not convenient.
Choose clear glasses for kids of suitable temples and nose pads.
Children's head is very different from adults, especially the height of the bridge of the nose. Most children's bridge of the nose is low. Therefore, it is best to choose a high nose pad for children's glasses or an adjustable eyeglass frame for the nose pad. The temples of the glasses should not cause uncomfortable pressure and the glasses should be kept in the correct position. Sporty temples are another option. The temples are very flexible, and they fit well into a child's ear. It should extend to the earlobe and be covered with soft plastic.
Disadvantages of titanium glasses
Titanium and titanium glasses cost a lot to produce, requirements in buckling, stamping, cutting, and welding are very high, not easy to welding and electroplating.So the price is more expensive, only for high-end glasses frames.