Wearing glasses correctly to prevent the increase of prescription
Many people who wear glasses every day have the following experiences: when you look in the mirror, you find that your glasses are high and low; when you take off your glasses and put them together, you find that the two temples are not at the same angle; when you break your glasses with your hands, they are crooked again soon afterwards.
When you first got your glasses, they were fine, but then they became crooked. Is it your eyes or your face that is crooked? You know, often wear crooked glasses not only affect the appearance of beauty, but also deepen the degree, the more wear the degree higher! Today we will reveal how your glasses become crooked!
How do spectacles get crooked when you wear them?
The glasses that people usually wear belong to frames (spectacles), which are the most common optical correction tools in daily life. They can be used to correct refractive errors of the eyes as well as for decoration.
A pair of frame glasses usually includes eyeglass frames and lenses, eyeglass frames can be divided into full-frame frames, half-frame frames, rimless frames, etc. according to the style and structure, generally composed of these parts.
- Rims — where the lenses are fitted.
- Temples — the ends, usually equipped with ear hooks, that hang from the ears to hold the eyeglasses in place.
- Nose bridge — the connection between the left and right rims that allows the glasses to be supported on the nose.
- Nose brackets — part of the eyeglasses are supported on the nose by the nose brackets on the rims.
- Hinges — connect the temples to the rims and are more likely to be deformed or damaged.
- Rims — where the lenses are fitted.
After learning about the structure of glasses, let’s talk about how glasses become crooked?
1. Take off and wear glasses with one hand is the main cause of glasses become crooked
If you take them off and on with one hand frequently, the hinge will be pulled outward, which will easily loosen the screws on one side of the hinge due to the uneven force on both sides, causing the hinge to be high and low or tight and loose, resulting in crooked glasses.
2. Everyone’s face is not completely symmetrical
Some people have differences in the height of the two ears, also known as “high and low ears”. If you have high and low ears, it may cause your glasses to become crooked. Choose glasses that fit your face better, and through reasonable adjustments, you can generally make your glasses look level and comfortable to wear.
3. The quality of the glasses is also one of the reasons why they become crooked
For example, the material of the frame is soft, not hard enough, or glasses in the processing of the problem leads to the lens on the rim of the reverse plastic force is too large; long-term not cleaned glasses, the legs frequently open and close, the accumulation of grease and dust lead to the loss of hinges and nosepiece, may lead to glasses become crooked.
4. The role of external forces such as falling bad, crushed glasses deformation
Usually after taking off the glasses, if possible, try to put them in the glasses case or put them in a safe location to avoid causing damage to the glasses.
What are the dangers of wearing crooked glasses for a long time?
The prescription of the lenses, especially for glasses with high astigmatism, is not the same at every angle. If the glasses are crooked, the light from the outside cannot reach the pupil through the optical center of the lens, which will lead to the horizontal shift of the pupil distance and the axial shift of the astigmatism, and the degree of the lens through which you see normally does not match the actual degree of your prescription. Wearing glasses that don’t match your prescription for a long time may lead to a faster rate of myopia.
In addition, crooked glasses will produce a certain prismatic effect, so that the things seen distorted, plus the importance of fatigue. Some people may also experience dizziness and nausea when wearing glasses for a long time because they cannot adapt to the mismatched prescription.
How can I judge if my glasses are crooked?
A suitable pair of glasses, both sides of the rim should be horizontal, the distance from the upper edge of the left and right rims to the eyelids is equal, the eyes are roughly in the upper 1/3 to 1/2 of the glasses, the distance from the lens to the eyes is about 12 mm, and the lens cannot touch the eyelashes, the side view of the lens is about 8-15 degrees forward angle. Both sides of the nosepiece and legs fit comfortably with the face, without pinching or loosening.
How to self-test?
First, take off the glasses and put them on the horizontal surface with the front side up, observe whether the opening and closing of the two temples are symmetrical, whether the lower edge of the two lenses and the two ear hooks are smooth; then put the glasses on the opposite side up, whether the two temples are in line with the desktop; then close the glasses again and observe whether the left and right two temples can form a straight line.
How do I adjust my glasses?
The first place where you can adjust your corrective glasses is the temples. Bend the temples, so that the temples and the back of the ears more tightly, while paying attention to the level of the angle of the glasses, you can also add non-slip cover on the temples to further fix the position of the glasses to prevent them from slipping.
The second place that can be adjusted is the nosepiece. The ordinary glasses are divided into those with nosepiece and those without nosepiece, with nosepiece glasses if the distance between the left and right nosepiece is too large, it is easy to cause the glasses to slide, by adjusting the position and distance of the nosepiece can be improved; for glasses without nosepiece can choose to paste nosepiece paste to prevent slippage, but pay attention to regular cleaning and replacement.
Alamode reminds us that once the frame of the glasses is deformed, please adjust or replace them in time to avoid affecting the health of our eyes.
