Seek adjustment in stores
It occurs redness and pain in the ear area. It could be that the structure of the glasses and position doesn't suit your face shape. When you're in an optician's shop, ask an optician for help in adjusting your glasses or changing the frames. Think about if the frames fit or are a little heavy. Suggest you can change to another pair. You should try a suitable and not heavy frame. You go back to the eyewear store and ask a professional to shape your frame in accordance with the outline of your ears again carefully. If you feel a little uncomfortable when you try it on, adjust it.
Choose rectangular glasses based on the shape of your face.
If you belong to the oval face, do not choose the too large or angular glasses frame. And do not choose long or square ones. It will be easy to elongate the face and affect the overall appearance. The shape of a round face is the opposite of a square face, so the buying principle of the glasses is basically the opposite of a square face. You need a more angular one to improve the shape of the face, but you need a square face (elongate) principle, that is, use a lower height, higher temple position of the frame.
Difference Between Driving Glasses And Night Vision Goggles
The use of driving glasses and night vision glasses is different. When sunlight is projected on the road or water, it directly stimulates the eyes, making them feel dizzy, tired, and unable to see for a long time. Especially when you are driving a car, doing outdoor entertainment activities, it will not only affect our work and entertainment mood, and even affect our judgment of the image and cause danger. The polarized driving glasses can be used during driving, fishing, skiing, rain, etc. when there is a strong reflection of strong light. Night vision goggles are usually used at night and have great applications in transportation, the military, and other fields. A large amount of night vision equipment has been used as a winning strategy to dominate night combat. Combining night vision technology with weapons and equipment will greatly improve the effectiveness of weapons and equipment in getting information, conducting strikes, commanding troops, and coordinating operations at night and in bad weather.
What is the cheapest way to buy prescription glasses?
Optometry must be accurate. Optometry is the main basis for glasses. The accuracy of optometry is directly related to the success rate of the glasses prepared. Optometry must be accurate first, and the difference between the upper and lower levels should not exceed 12.5 degrees of the prescription. Secondly, the astigmatism axis should be accurate, and the general axis difference should be limited to plus or minus l to 3 degrees. In addition, the interpupillary distance must be accurate, and the interpupillary distance must be equal to the optical center distance of the lens. If you do not pay attention to the above-mentioned checkpoints in optometry, the prepared spectacle lenses will have blurred vision, prolonged visual fatigue, dizziness, nausea, and even diplopia. Optometry is best to go to a professional eye hospital. For children’s optometry or to wear glasses for the first time, you must use mydriatic optometry to be accurate. You can also check if there is any problem with the fundus, and go to the hospital to get more accurate optometry.
Figure out the categories of driving glasses
Driving glasses are usually divided into daily and night glasses. Daily use refers to the glasses with anti-glare function and darker colors like gray, brown and gray-green, and other colors. Daily lens transmittance is over 8%. Night type usually refers to the glasses that can prevent glare from headlights of opposite vehicles and increase brightness at the same time. That is, it can prevent lights and not block the road, and can brighten and increase the visual scope. Night lenses have a transmittance of more than 75%.
Learn the 9 Necessary Parts of Glasses
Rims: the rims lend form and character to your eyeglasses and they also provide function by holding the lenses in place.
End pieces: they are small parts on the frame that extend outward and connect the lenses to the temple.
Bridge: it is the center of the frame that rests on your nose and joins the two rims together.
Hinges: hinges sit between the end pieces and the temple, allowing you to close your glasses folding the temple inward.
Lenses: lenses are the essential parts of eyeglasses. They are clear pieces of glasses, plastic or other lens materials held in place by the rims. The lenses are crafted and shaped with your unique prescription to help you to see clearly.
Screws: they are the small metal fasteners near the hinges and they are used to connect the end pieces with the temples.
Nose pads: nose pads give your glasses a more comfortable and secure fit. They are the round plastic pieces under the bridge that sit on your nose.
Pad arms: pad arms are able to extend from the rims and hold the nose pads in place. They are adjustable to fit the natural shape of your face.
Temples: temples are the long arms on both sides of the frame that fit over your ears for a snug fit.
These are all the 9 essential parts of eyeglasses. Knowing the name of parts of glasses can help you to repair them once they are broken or crooked.
Why should you choose thin lenses?
Regular lenses are great for low-prescription people, but for high-prescription people, high-prescription regular lenses are too thick and heavy, making them unattractive and have a poor wearing experience. For high-prescription people, we recommend that they choose thin lenses with a high refractive index because they are lighter and more attractive to wear. For any astigmatism above +3.00, we recommend 1.67 or 1.74 refractive index lenses because these lenses are aspherical in design, which means they are thinner, flatter, and lighter than standard spherical lenses, which reduces the magnification of your eyes to other people.