What does plus and minus mean in eyesight? | KOALAEYE OPTICAL

What does plus and minus mean in eyesight?

What Are Blue Blockers? Leiendo What does plus and minus mean in eyesight? 6 minutos Siguiente Why Do Pilots Wear Black Goggles?

HINDAR blue light blocking glasses

With advanced equipment, system production, and strict management, they adopt German technology and PARUPU lens geometric structure owned by HINDAR OPTICE LAB, which can effectively block various kinds of blue light, ultraviolet light, and other different wavelengths, to protect the health of eyes. Since its inception, Hindar has enjoyed a lot of popularity, and while it has achieved some good results, it has not slowed down and is still striving to become the top brand in the industry.


The Advantages of Polycarbonate Glasses

In fact, polycarbonate glasses come with several benefits and this section will show some of them.

First, polycarbonate glasses are safe and are virtually unbreakable. A study found that polycarbonate glasses were more impact-resistance than glasses or other types of plastic lenses.

Second, polycarbonate glasses are thinner than other types of lenses. This feature makes them ideal for people who have strong prescriptions. Lighter and thinner eyeglasses are less likely to slip off your nose and are more comfortable for everyday wear.

Third, extended exposure to UV radiation from the sun can cause damage to your eyes and lead to some eye conditions such as cataracts or macular degeneration. Of course, polycarbonate glasses can block out harmful UV rays from the sun and provide good protection for your eyes.

However, there are some negative voices of polycarbonate lenses.



About Glasses Donation

Some enterprises adhere to the quality of survival. They always adhere to the credibility and development of the business philosophy, investing in public welfare undertakings and fulfill their social responsibilities. They donate glasses, have free vision tests, and put forward reasonable love eye care advice according to the results of the test to the public.


The Advantages of Trivex Lenses

In this section, we will show you the benefits of the Trivex glasses.

  • Trivex lenses provide high impact resistance so they can minimize the risk of injury among those who have an active lifestyle.
  • Trivex lenses are light because they have a lower density ratio than other plastics. Hence, it would not slip down from your nose
  • Trivex lenses are thin so they enhance comfort because they have a slimmer profile.
  • Trivex glasses have a high Abbe value that offers a clean and sharp vision. This feature can be more important for those whose prescription powers are stronger but who don’t want to sacrifice visual clarity.
  • Trivex lenses provide 100% UV protection from harmful sun’s UV rays.
  • Trivex lenses are internally stress-free. This means that such lenses have a lower chance of breaking when under pressure, like from thick frames.
  • Trivex lenses are able to resist to many chemicals including acetone. It performs better in chemical resistance than some of its other competitors.



How to drive at night with glasses?

If you need to wear glasses while driving, you'll need special glasses when driving at night, because common lenses reflect oncoming lights, which produces a faint glare. This will reduce your visibility. It's OK to wear contact lenses while driving. As you get older, your eyes become more sensitive to glare. Ordinary sunglasses or goggles are only suitable for wearing during the day, driving at night will seriously affect the vision (national standards stipulate that light transmittance of night driving glasses must be greater than75%). Although the all-weather driving glasses can weaken the strong lights, the vision darkens and affects road safety which does not meet the national standards for driving glasses at night. You should choose functional driving glasses that can block strong light, glare and increase the field of vision. This can effectively reduce the glare of the car lights but can filter out the extra harmful light. When worn at night, it can soften the strong lights and make the vision clearer. In this way, the safety of drivers is ensured, the fatigue of eyes is alleviated, and the radiation damage of harmful lights to glasses is prevented.


How to Choose Glasses for Square Face?

What glasses suit my face or what glasses suit my square face? If you have the same questions, you come to the right place. This post will show you some advice.

In fact, there is a wide range of eyeglasses available for square faces. Round and oval glasses are the best choice for people with square faces. These frames will soften and balance your strong jawline and add contrast to your face shape.

Now, we will show you some suggestions for the glasses for square faces.

Round glasses: round glasses are a sophisticated, polished look that works well with a square face shape. No matter what color you choose, this style works beautifully with a square face shape.

Browline glasses: as for glasses for square face, you can choose the browline glasses. These glasses are thicker at the top, mimicking the way the eyebrows frame the face. Their unique design is one of the best glasses for square faces.


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What is vision insurance?

The term vision insurance is commonly used to describe health and wellness plans designed to reduce the cost of regular preventive eye care (eye exams) and prescription glasses (glasses and contact lenses). Some vision plans provide discounts on elective vision correction precesses, like LASIK and PRK. But unlike large health insurance plans, most vision plans are discount or health benefit plans that provide specific benefits and discounts on annual premiums. They can be used to cover most of the cost of eyewear, or they can be used to make high-end eyewear products and improvements, like progressive lenses, anti-reflective coatings, and photochromic lenses, which are much cheaper. Vision insurance plans usually operate differently than other health insurance plans or large medical insurance plans.

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