Sunglass Lens Types

Sunglasses For Fishing - Oyea

Oyea is a well-known eyewear brand in China. Headquartered in Xiamen City, Fujian Province, Oyea eyewear is a diversified company integrating design, development, production, and sales. Oyea classifies the products carefully to meet the different needs of customers so that customers have more choices. The brand is the pioneer and leader of sports glasses in China, focusing on the development and sales of eyewear categories. The appearance of this brand filled the blank in the field of domestic sports glasses and opened a brand new situation of category.

What is the best lens material?

Trivex is a special material from PPG. Compared with PC lenses, the refractive index is lower (only 1.53) but the Abbe number is higher (up to 45), which results in smaller dispersion and better image quality. At the same time, the impact resistance of the Trivex lens is 10 times higher than that of the PC. It is the only explosion-proof safety lens that can withstand external force twists and turns in the market at present.

Glasses with metal frames.

This is a very popular style of glasses. The feature of the glasses is that they look classic and retro, but when worn with modern clothes, they will make people feel bright.

The first feeling given by metal frames is retro, indeed, no matter what kind of metal frame is worn, there is always a kind of old retro flavor. But metal frames aren't just retro for anymore. Now, the metal glasses frame is synonymous with the avant-garde.

Common Bifocal Glasses Problems

In this section, we will list some common bifocal glasses problems.

First, it may take a couple of weeks to adjust the bifocal glasses. You may not get used to wearing your bifocal glasses overnight. When you wear the bifocal glasses for the first time, it may be difficult to adapt them.

However, knowing the correct part of the lens to look through is crucial to giving you the vision correction you need, whether it is distance or near vision, for different activities.

To adapt to the bifocal glasses, you had better wear them all day or as often as you can. If you don’t wear your new glasses enough, it can make the adaption period last even longer.

Besides the above bifocal problem, there are other problems with bifocal glasses. The second problem of bifocal glasses could be that the bifocal line is too high and you might lack adequate distance vision. So, the bifocal line could be obvious and it would not be beautiful. However, if you want a pair of glasses without a visible line, you could consider progressive lenses. You will feel older while wearing them, without having to worry about the line through the center of your glasses.

Agstum Titanium Rimless Flexible Frame

AGSTUM provides the best quality optical frames and sunglasses. Hand-ground materials and carefully designed to reflect that AGSTUM glasses have the true interpretation of excellent texture and perfect taste, showing a distinctive, outstanding, elegant, and noble temperament.

AGSTUM is committed to providing the highest standards of customer service to every customer. You can frame the lenses at your local optical shop. These frames come with clear lenses that won't hurt your eyes.

5 Signs You Need Reading Glasses

In this section, we will list some signs you need reading glasses.

1. You are over 40 years old. Everyone’s eyesight changes at a different rate, but most people develop presbyopia in their 40s. Presbyopia is a condition in which the eye strain to focus on nearby objects, which is different from farsightedness, a condition in which you can see distant objects clearly, but objects nearby may be blurry. Farsightedness is usually present at birth, but presbyopia develops during the aging process.
2. If you find that you never seem to have enough light when reading, regardless of the room type or the number of lamps you have turned on, it may be time to get reading glasses. According to a study, a 60-year-old people requires three times as much light as a 20-year old to do the same task.
3. If your eyes get tired when reading or working at your computer, you may need reading glasses. Do you find yourself dozing off at your computer, or do your eyelids get heavy when your reading or do detailed work? If so, you may be developing presbyopia, and you may need the reading glasses.
4. Another sign you need reading glasses is that you are getting more headaches. Consistently straining your eyes to read or focus on craft could give more headaches. A headache right behind your eyes could be indicative of hyperopia. It is important to remember the 20-20-20 rule: every 20 minutes, look at something at least 20 feet away for 20 seconds. If your headaches persist, you should see an eye doctor and have a check.
5. If you see halos, you may need reading glasses. When your lens cannot focus light into your retina, it makes your vision appear blurry. Thus, reading glasses can solve this problem.

Do I need reading glasses? After reading this post, you may have a basic understanding. If you need a pair of reading glasses, try Koalaeye glasses. They are stylish and cheap, and the glasses will be mailed to you with great convenience.