How Can You Tell If Sunglasses Are Fake?
Sat, May 07, 22 By : Koalaeye
JCPenney Optical JCPenney Optical is your one-stop-shop for all of your family's eyewear needs. Whether you need an eye exam, sunglasses, contact lenses, or a set of great frames, you'll find frames, prescription lenses, sunglasses, and contact lenses from fashion designers and trusted brands at low prices. How much should a pair of prescription glasses cost? Speaking of glasses, everyone's first feeling may be that it is not cheap to have a pair of prescription glasses. Just such a small...

JCPenney Optical

JCPenney Optical is your one-stop-shop for all of your family's eyewear needs. Whether you need an eye exam, sunglasses, contact lenses, or a set of great frames, you'll find frames, prescription lenses, sunglasses, and contact lenses from fashion designers and trusted brands at low prices.


How much should a pair of prescription glasses cost?

Speaking of glasses, everyone's first feeling may be that it is not cheap to have a pair of prescription glasses. Just such a small pair of glasses, ranging from a few hundred dollars to a few thousand dollars. Why is the difference so big? So some people go online to buy glasses for dozens of dollars as if they look the same. But is it actually the same? There are a lot of differences between the glasses for dozens of dollars and for thousands of dollars, apart from the price. Also, you should be responsible for your own eyes.

Better glasses brands will adopt better designs to ensure beautiful appearance and structural safety, and have stricter quality standards. At first, these glasses are not cheap because the cost has increased a lot. In addition to the brand, different materials, process requirements, and mass production scale will also affect the cost and thus the final selling price. As for the question of what price glasses to choose, my suggestion is to choose the high-priced one within your budget. So, to choose a suitable pair of glasses, what aspects need to be considered?



Types of Bifocal Lenses

Flat top: It is a kind of common bifocal lenses. The lower part of the lens is present in the shape of a half-moon or the letter D on its side. The upper part and the lower part of the lens can be clearly distinguished from each other. The patient using such a bifocal lens has the choice of choosing the length of the lower segment which is either 25 mm or 28 mm.

Round seg: the second type of bifocal lens we want to mention is the round seg. The segment is either 22 or 24 mm in length and it provides more are to adjust between the two different types of vision easily. This type is very rarely used nowadays.

Blended: this type of bifocal lens has the lower part of the lens in a round shape and the edges of the lens are blended with the upper lens making the lens appear as one.


What is hard coating on lenses?

Lenses are mainly added in two kinds of film: anti-reflection film and hard film (and some manufacturers produce anti-fogging film and mirror film, but not common). The anti-reflective film is mainly by coating the front surface of the lens with multiple layers of transparent materials with different refractive index and thickness to reduce the excess reflected light on the surface of the lens, by using the principle of light interference. The film can be applied to both glass and resin lenses. The way of hard film plating is usually a soaking process. After many times of soaking and cleaning, soaking in an organic solution containing ultrafine silicon element for a certain time, and then keeping it at a certain temperature for 4-5 hours, the fixed polymerization process of the film has been completed. The surface wear resistance of CR-39 coating can be increased by 2-4 pH, which is similar to the hardness of optical glass lenses.



Blue Light Blocking Glasses - Jonas Paul Harper Teen Glasses

If you're looking for blue-blocking glasses specifically designed for teenagers, there's a range of styles for teenage girls and teenage boys (as well as children). They have stylish squares and acetate frames. Including brown Tortoise-shell, purple Tortoise-shell, black, and blue striped. Each pair comes with shatterproof polycarbonate lenses. The spring hinge means increased durability. The nose pad is prolonged to help stay on the tiny bridge of the nose. They provide excellent products and customer service.


What is the cheapest way to buy prescription glasses?

After the examination, you will bring your optometry sheet and go to the optician to match your glasses. Note that the optical shop has professional qualifications. The refractive index of the resin lens, such as 1.49, 1.56, 1.61, 1.67, and so on, mainly depends on the degree. If the degree is not high, 1.56 will do. In addition, the sophisticated store will also measure the nose height, nose width, the distance between the eyes and ears, and the forward angle of the frame, which are also indicators of whether the glasses are comfortable to wear. It is recommended to try them on after they are fitted, and the time to try on them should be longer, so as to determine whether the glasses are suitable.



Can titanium temples be bended?

Using titanium alloy as the main material, the strength of the spectacle frame becomes larger and the density is smaller. Strong for the frame can be a good guarantee of the structure of the frame, and small density can effectively reduce the weight of the frame, so as to reduce the pressure on the ears and nose of the frame. The toughness of titanium alloy is very good, which can effectively avoid the breaking, bending deformation of the spectacle frame because of an accident.

It is recommended not to bend without authorization. There are many special tools for adjusting glasses. Bending by hand is easy to cause fracture because the force is concentrated at one point. You can take your glasses to a nearby optical shop and have them adjust them. Many big optical shops do this for free.

Related The Blog
Dejar un comentario
Cart
Close
Back
Account
Close