What is the difference between bifocals and readers?

Ways to improve driving at night

1. Check your eyesight and glasses regularly to ensure that your eyesight and the glasses you wear are in the best condition.

2. Clean the stains on the glasses before driving. The stains on the glasses will aggravate the glare.

3. Clean the windshield before driving at night to eliminate the hidden danger of glare.

4. Replace the wiper regularly.

5. Keep your vehicle headlights clean and free of dirt.

6. Do not drive for a long time, eat more foods that are good for eye health, and perform proper eye care.

7. If you feel that your night vision is reduced, you should go to the hospital for help in time.

In fact, if your eyes are healthy and you have no vision problems that require prescription glasses to correct, then the best glasses for driving at night is to not wear glasses at all. On the other hand, if you need prescription glasses because of myopia, hyperopia, or astigmatism, choose clear corrective lenses with an anti-reflective (AR) coating. These lenses can let almost 100% of the visible light into your eyes, can allow your eyes to correctly focus on roads and other obstacles at night, can reduce or eliminate the glare from street lights and headlights. Because they are based on your personal prescription, they provide the best vision for your eyes.

VisionKids HappiMegane Anti Blue Light Glasses for Kids

With stylish design, they can effectively block blue, ultraviolet, and other harmful lights, relieve eye fatigue and can maintain natural high-definition visibility. They are safe to wear, with a durable frame, good recycling ability, durable, not afraid of breaking. They are wear-resistant, anti-skid, ergonomically designed to reduce ear pressure. The arc-shaped design fits highly with the root of the ear, effectively anti-skid.

Lotos - Glasses For Men

Lotos is a famous eyewear brand. The brand was founded in 1872. The skills of making glasses are very clever, and the craft and style are very strict. More importantly, there is no logo on the glasses, which is very popular among business elites. LOTOS is renowned in Europe for creating fashion with pretty high-quality materials and attractive glasses frames. It is these unique and charming aspects that make it a favorite of trendsetters and a favorite object of collectors.

Disadvantages of progressive lenses

Wearing progressive multifocal glasses for the first time may cause slight dizziness and shaking when walking. Be careful when moving up the stairs. The perception of space changes, the perception of the distance of the object, and the perception of depth have changed. New wearers should not drive immediately and do vigorous exercise. When you look close, you need to turn your eyes down, and your eyes are mildly uncomfortable. Seeing the object through the blurred vision area around the lens, the object becomes blurred. Therefore, when new wearers look at things, turn their heads more, turn their eyes less, try to use the far-distance zone, the near-distance zone, and the middle-distance zone to see the object.

The design evolution of progressive lenses

Spherical and aspheric designs

The design of the front surface of the far-use area of the early progressive lens is similar to that of the ordinary spherical single vision lenses, so it is called a spherical progressive lens. Since 1974, the front surface of the far-use region of the lens is designed to be aspheric by designers, which not only reduces the peripheral aberration but makes the lens thinner, lighter, and less powerful.

Hard and soft design

For hard design, the channel is short, and the gradient is large. The near-use area position is high. The effective visual area of remote and near-use areas was larger. Peripheral astigmatism is relatively concentrated. Because surrounding astigmatism increases rapidly and the distribution is dense, the curve effect is more obvious. The gradient area is narrow. It is more difficult and takes longer for wearers to adapt.

Lenses with soft designs have slower gradients, longer gradients, and wider gradients. The angle of rotation of the eye from the far area to the near area is greater. It's easier to get used to. Compared with the hard design, the effective visual area of the far and near use areas is smaller, and the location of the near use area is lower.

Single, diverse, and individualized design

Initially, the progressive lenses used a single design, in which each basic curve was scaled equally and a luminosity combination was added within the range of its semi-finished lens blanks. The steepest base curve uses the same lens design as the flattest base curve. Lenses designers quickly realized that the overall performance of the lens could be improved by microcustomizing the lens design, leading to progressive lenses with multiple designs. This kind of design is called diverse design. By the mid-1990s, there was the emergence of individualized lens designs. In addition to using different gradients, these first individualized lens designs used steeper baseline curves with a slightly larger approach area to compensate for increased magnification and reduced field of view.

Symmetrical and asymmetric design

There is no difference between the left and right eyes in the symmetrical design of progressive lenses. As the eyes turn inward when they see near objects, the gradual gradient area gradually tilts to the nasal side from top to bottom, so the left/right progressive lenses should be rotated clockwise/counterclockwise respectively during processing. An asymptotic lens with left and right eye divisions is called an asymmetric design. The gradient is gradually and moderately inclined to the nasal side from top to bottom. The refractive force, astigmatism, and vertical prism of the two sides of the left and right gradient of the asymmetric design lenses are basically similar. At the same time, considering the characteristics of eye movement parameters in binocular vision, the peripheral aberrations of the corresponding positions of the left and right lenses were appropriately balanced to improve the visual effect of the wearer.

Ray-ban Driving Glasses

Ray-Ban sunglasses, an international brand, were created in the 1930s, especially for the US Air Force, to block the fierce light at high altitude, with a very good UV protection function. Through the precise manufacturing and polishing process, Ray-Ban lenses are free of optical deviation and will not cause eye strain, headache or fatigue after wearing.

EYEZZ

EYEZZ is an online retailer of authentic designer glasses. Independently owned and operated by a licensed eye professional, they are proud to provide the finest prescription glasses, fashion sunglasses, RX sunglasses, and optical frames. EYEZZ is one of a handful of authorized online retailers of Luxottica products.