The inadequacies of bifocals
The field of vision is smaller than that of the single vision lens, especially for the close view. For example, reading and reading newspapers need to make it coordinated with the head movement, there are optical defects of image jump and image displacement. There is a boundary, and it is easy to be seen that wearing a bifocal lens exposes age. Bifocals clearly demarcate the near and far regions, affecting appearance and vision. And when far view and close view change, the objects will jump. Because most myopic patients have a lag in the adjustment response, wearing bifocal lenses not only does not delay the development of myopia but has side effects. Therefore, bifocals are not suitable for teenagers to control myopia, and only a few special patients need to wear bifocals.
The Customization of Glasses
For the first time, you must go to a professional medical institution for medical optometry. Before the age of 12, you should dilate mydriasis and optometry. After the age of 12, you should decide whether to dilate mydriasis and optometry according to the specific situation of the eyes. The lens must be smooth, transparent, without bubbles and particles, with a uniform texture. The hanging ear of the temple should be attached to the outline of the outer ear, and the tightness should be moderate, so as not to slip.
Suggestions for Using Varifocal Glasses
If it is difficult for you to get used to the new varifocal glasses, here are some suggestions for you.
1. Wear the varifocal glasses consistently so as to let your brain learn how to use them.
2. The most common accident is tripping when getting used to new varifocal glasses. So, you can mix up your routine to keep your brain active and prevent you from tripping up.
You can also ask those who wear varifocal glasses to give you some advice.
Do You Need Plano Glasses?
Many people choose to wear plano glasses or glasses without prescription just for cosmetic reasons, without any need for vision correction. Normally, glasses frames without a prescription come with a pair of cheap plastic demo lenses.
Since there is no corrective effect on plano glasses, some people choose wear plano glasses for protecting their eyes from dust, and other flying objects. In addition, plano lenses come in a variety of protective coatings - anti-glare, scratch-resistant, blue light coating, UV coating to provide all around protection to the eyes.
So, if you want to protect your eyes from some unexpected damage, you can choose to wear the plano glasses and they would not bring any damage to your eyes.
Promises and Warranties of Optical Stores
They have a quality guarantee. Under normal use, the glasses will be replaced with the same value free of charge within six months if there is any quality problem attributable to the product itself. If there is any incompatibility within one month, the lenses will be re-checked and replaced with the same quality lenses free of charge. If you are not satisfied with the style of the frame, you can replace the frame of the same value free of charge within one week.
The effects of night blindness on driving
As we age, our pupils will be narrow little by little, so they can't dilate as quickly. The smaller the pupil, the less light reaches the retina, making it harder and harder for the retina to see at night. This is called night blindness, and it's a condition that makes it difficult for your eyes to adjust from bright light to dim light. This makes driving at night especially stressful in your 50s, 60s, and beyond.
How Should Glasses Fit?
Make sure your pupils align correctly. The combination of frame, arm, bridge, and lens measurement can affect the placement of your pupils within your lenses, which is essential to the proper function and comfort of your prescription. To ensure glasses fit properly, the pupils should align horizontally in the center of your lenses.
Also, you should consider your face shape. When choosing a pair of suitable glasses, you should consider what face shape you have.
