How to choose glasses frames? All the key points for choosing glasses frames.

Glasses Magic has recently received a lot of questions from customers about glasses frames. The most frequently asked one is to ask me to check if the frames they bought are suitable.

It's inaccurate to judge the suitability of a pair of frames solely based on the optometry data. Therefore, I have the idea of writing an article dedicated to choosing glasses frames, hoping that more people can choose suitable frames for themselves.

This article does not involve prices, does not recommend brands, and does no promotion. It simply focuses on the details to note and the pitfalls to avoid when choosing frames, so as to prevent spending money without getting suitable frames.

Let me first talk about my definition of a suitable pair of glasses frames. I think that in addition to considering the appearance and style of the frames, people should pay more attention to whether the frames are suitable for the prescription. Because whether a pair of glasses is suitable directly determines the quality of the entire glasses fitting. Glasses frames are not only clothing accessories but also medical devices. Just like dispensing medicine, the frames are crucial in determining whether the "medicine" is well-prepared.

I think a suitable pair of frames should be structurally stable, of appropriate size, comfortable to wear, and suitable for correcting vision (matching with lenses).

1.Improper selection of temple length

This is easy to understand. Just like wearing pants, it will be uncomfortable if they are too short or too long. All frames have the size of the temples, and the length generally ranges from 135mm to 150mm. It is usually marked on the temple, and you can check it by yourself.

The most common pitfall I come across is an ill - chosen temple length. When this happens, the glasses can be too tight both in the front and back, severely affecting comfort. If you have a relatively large and full - faced shape, you must pay attention to the temple length and avoid choosing a pair that's too short.

The following case is examples of choosing temples that are too short.

The bent part of the temple is not on the ear.

Now, let me show you a picture where the temple length is just right, and the bent part is exactly on the ear. I hope you can use this as a standard when choosing glasses frames.

2.Improper width of the temple

The width of the temple should match the width of the face. If it is too narrow, it will squeeze the forehead and temples. If it is too wide, the frame will be loose and slide down.

S - shaped nose pads are the most common type on the market currently. Their advantage is that they can be adjusted. They can be adjusted according to different people's face shapes, nose shapes, and types of lenses. If you have difficulty in choosing the right nose pad for your nose and can't tell what type of nose you have, it is recommended that you choose S - shaped nose pads.

However, some people with high noses had better not choose this type of nose pad. Because it will increase the vertex distance, causing greater distortion of vision, more intense shaking, a reduction in effective power, and resulting in blurred vision when looking into the distance.

A few days ago, I met a customer who had discomfort with two pairs of glasses he had previously bought. After examination, there was no problem with his eye prescription, and the processing parameters were also correct. Several people tried but couldn't find out what was wrong.

After eliminating suspicious items one by one, I finally determined that it was because his nose was too high and he chose S - shaped nose pads, which led to an excessive vertex distance and thus the failure of glasses fitting.

One - character - shaped nose pads

This type of nose pad gets its name because the metal connecting the nose pads is straight, resembling the Chinese character "一" (one). It is more suitable for those with a not - very - high nose bridge. However, due to the extremely small adjustable range of its inclined surface, it is very particular about face shapes. Only when the width of the nose and the inclined surface of the nose are just right can it be comfortable to wear.

Therefore, it is recommended that friends who haven't tried it on avoid this type of nose pad. The probability of buying it and having it fit the nose perfectly is very low. Moreover, this type of nose pad has relatively large elasticity and is prone to spreading open, so it is more likely to become loose.

Now, here comes the key point. Before choosing a nose pad, be sure to touch your nose to have a clear understanding of its shape.

You must try it on carefully to check if the nose and the nose pad fit well.

If the nose pad is not chosen properly, it may, at the least, leave deep marks on the nose. In severe cases, it can cause the frame to be unstable on the bridge of the nose, leading to fluctuating corrected vision, which can affect eye health and even cause an increase in refractive power.

If the nose pad doesn't fully and smoothly rest on the nose, but only its two edges press against the root of the nose, just imagine: if you have a high prescription and the glasses are relatively heavy, with such a small contact area, it's bound to leave two horizontal marks.

The comfort level will surely be far from ideal. If you have a high nose bridge or prominent bones at the root of the nose, I suggest you try on an integrated nose pad. This is because it can fit the nose very well.

Secondly, it won't, like the combination of a high nose bridge and an S - shaped nose pad, cause the vertex distance to exceed the normal range. An excessive vertex distance can lead to distorted and reduced object imaging, unclear vision when looking into the distance, significant side - to - side shaking, and even discomfort and nausea while wearing the glasses.

Don't underestimate the importance of choosing the right nose pads. Since at least half of the weight of the glasses rests on the nose, selecting the appropriate type of nose pads not only ensures comfortable wearing but also significantly improves the imaging quality.

5.Pay attention to controlling the vertex distance

The vertex distance can affect the effective power of the lenses. That is to say, the farther the vertex distance, the lower the effective power. Moreover, the greater the vertex distance, the more distorted the corrected visual quality will be. It will increase the peripheral distortion area, reduce the comfortable visible range, cause blurred vision and a strong sense of shaking.

So my advice is that, without compromising wearing comfort, aesthetics, the up - and - down movement of the eyelashes, or causing the lenses to fog up, the smaller the vertex distance, the better. This will result in higher clarity and better visual quality.