How do bifocal reading glasses work?
Bifocal reading glasses have two different lenses on the same lens. The top of the lens is your normal distance prescription, while the bottom is for close-up viewings, like reading. The two lenses allow you to alternate between them by moving your eyes up and down as needed. A bifocal lens is a type of lens that has two different areas of vision: one for close range and one for long-range. Typically, the upper section covers remote vision and the lower section covers reading. With a traditional bifocal lens, you can see the difference between the two lenses because the lower curve is a little different.
How to Get Used to Progressive Lenses?
It is common that your vision may change when you are over age 40. You can find it is happening when have to hold your favorite book, the daily newspaper, or a restaurant menu farther away just to read it. This is an eye condition called presbyopia. It is normal and almost all of us get it as we reach middle age.
This eye condition often can be corrected by progressive lenses which allow you to see objects from far to near clearly. With progressive lenses, you do not have to switch your glasses to see far or near objects frequently.
However, since progressive glasses have three different prescriptions in one lens, it may be difficult for some people to adapt to the new ones. So, in this post, we will show you how to get used to progressive lenses.
Driving Sunglasses Brands
Ray-Ban polarized sunglasses
Polarized sunglasses filter polarized light. If the lenses are in dark colors (such as tan, green-gray, etc.), they are more comfortable to wear in summer. Polarized lenses are globally recognized as the most suitable lenses for driving. Glare is caused by light that is partially polarized when reflected off an object's surface. The adverse effect of glare- is to enhance brightness and reduce color saturation. It outlines the object becomes blurred and the eyes become tired, uncomfortable. A polarized lens is made according to the principle of the polarization of light, which has the special function of effectively eliminating glare, filtering the disordered light, so that the driver can improve vision and add fun to driving.
Dailisi Men's Driving Polaroid Sunglasses
It suits face shapes like rounded rectangular, square, square, and inverted triangle shapes.
Do Colorblind Glasses Work?
To understand colorblind glasses well, you need to know how color blindness happens first. The human eye contains three photopigments that are sensitive to color. These photopigments are located inside receptors in the retina called cones, which can tell your eyes how much blue, red or green is in an object. Then they give your brain information about what color objects are.
If there is not enough photopigment in your eyes, you maybe can’t see that color. Most cases of poor color vision involve red-green color deficiency. That is to say, you have the difficulty in recognizing the red and green colors.
So, how do colorblind glasses work? Colorblind glasses like Enchroma were originally manufactured as sunglasses with lens coated in a special material that exaggerated the wavelengths of light. So, it has the effect of making colors look saturated and rich.
Though colorblind glasses do not cure color blindness or produce 100% normal color vision, they allow colorblind people to perceive colors they have never seen before and experience closer-to-normal color vision while wearing special glasses for color blindness.
Clear glasses are in fashion.
Unlike those who used to wear plain glasses for the sake of a polite way, it is important for young men and women to wear glasses today to show their individuality, personality, and non-mainstream style. The clear eyeglass frame is classic, as the black frame. But relatively speaking, a clear white eyeglass frame has certain requirements to face shape, skin color, hairstyle. However, if you wear them properly and have enough confidence, those clear frames can be very stylish.
What are driving glasses?
Driving glasses refers to the glasses that are specially used for driving, with functions of anti-glare, anti-strong light, anti-rain and fog, anti-fatigue, and other functions. They are suitable for drivers in the day and night to wear glasses for vision protection, better-ensuring traffic safety. They are recognized as the driver's glasses, driver glasses.
What Are Glasses Without Prescription?
Nowadays, some people wear glasses not only just for correcting their vision, but also for fashion. However, for those people who do not have any eye conditions such as nearsightedness, farsightedness or astigmatism, they can wear glasses without prescription.
Glasses without prescription, also called non-prescription glasses or clear lens glasses, work as a fashion statement to add style to your wardrobe. They also may serve a purpose if they have blue light blocking lenses.
Throughout the years, many people choose to wear glasses without prescription to improve their look. This trendy accessory is a reality available in a range of designs, colors and materials that can add just the right touch to your outfit.
It is important to note non-prescription glasses have zero corrective power whatsoever, while non-prescription reading glasses offer some level of magnification, enlarging what you see up-close.
