Why do you need low bridge glasses?
The glasses always slide in front of the nose. No one wants to keep putting their glasses back in place, especially in a conversation. Your glasses will slide down your nose, in other words, they won't sit on the bridge of your nose, and the frames will hit your cheeks, which may give you a cheek rash. The glasses move when you smile or laugh. The lenses rub against your eyes/eyelashes.
Disadvantages of Progressive Lenses
It is limited in applicable range. Progressive multi-focus lenses have no limit in strength and can be worn for myopia, presbyopia, or moderate astigmatism, but they are not suitable for everyone. Now there are more than two categories of asymptotic focus lenses, one is hard and the other is soft. A person who can understand and adapt to the temporary discomfort that progressive multi-focus lenses begin to produce can have a pair of glasses. If you have severe symptoms such as high blood pressure, dizziness, or have a misunderstanding on progressive multiple focal lenses, and you are unwilling to adapt to them, it will be difficult to try.
Pay attention to the purchase of driving glasses.
A few points need to be kept in mind to avoid the risk of accidents. The frame should not exceed the size, because the researchers say the lens color should be gray or brown, so you can choose the aviator sunglasses, compared to other series. Aviator Sunglasses are always classic. There are plenty of cool experimental design glasses to choose from every year on the market. The selection of polarizing mirrors can filter the scattered light in the beam, remove stray light so that the light can be reflected into the eye from the right direction of the optical axis. The field of vision is clear natural. Light is adjusted in the same direction as light and reflects into the room, so the natural scenery looks soft and not dazzling, especially when driving a car or doing outdoor activities. It will affect the judgment of the object and cause danger, what’s more, long-term direct stimulation by the sun will lead to the decline of vision, the formation of myopia, hyperopia, astigmatism, or cataract.
What are prism glasses?
What is a prism? A prism is a solid object with a cross-section along its entire length. If you cut across something, you'll come across a section that's been cut, and that's a cross-section. The upward section is a prism. If you have double vision, you can add a prism prescription to the lens to form prism glasses. It can help keep your eyes focused and greatly improve your vision. In most glasses, prisms are used primarily to change double vision and are useful for image correction. They can aid in position correction.
What glasses are best for night driving?
You had better not make myopia sunglasses directly with sunglasses frame. The radian of a lot of sunglasses is too high. When the nearsightedness lens that uses 400 degrees directly is squeezed into radian even 600 degrees to 800 degrees frame. The actual degree of the lens and other parameters will change. And, to meet the processing that sunglasses frame needs, the pupil distance of most myopic sunglasses was magnified 4 mm above. This is eye damage! No matter what style or look your glasses are, make sure they are specifically designed to eliminate glare and improve your view.
How to Choose Reading Glasses?
If you need reading glasses when using a computer, you may want to choose a lower reading glasses power. This is because most people view their screen from a greater distance from their eyes than when they are reading a book or a magazine.
However, if you need reading glasses for looking at something very close or very small, you may need a pair of stronger power glasses.
In most cases, when two reading glasses’ powers seem equally suitable, choose the glasses with the lower power. Picking reading glasses that are too string typically will cause more discomfort problems than reading glasses that are a little too weak.
How to choose progressive lenses
The progressive lens can effectively control the deepening of myopia, but there is no reliable empirical evidence. At present, the height of the lens frame is only about 30mm. The distance from the design of the transition interval is not enough, and the comfort of the eye is difficult to adjust the short distance. From the quality and technology, the foreign brand design process is stable and mature, but the price is too high, there are still a lot of people who are not easy to adapt. The parameters of progressive lenses need to be determined by strict optometry.