What Strength Readers Do I Need By Age? | KOALAEYE OPTICAL

What Strength Readers Do I Need By Age?

Transitions® Photochromic Lenses

When you step outside, it immediately begins to darken. The lenses help prevent harmful blue light from digital devices, screens, and sunlight to help reduce glare and prevent eye strain. They have the function of 100% UV blocking,anti-reflection treatment with blue light protection. They can constantly adapt to changing daylight conditions to reduce excess light and optimize color contrast and polarized light to prevent dazzle. They filter out excess light to provide maximum comfort. And provide high contrast and minimize glare. They provide increased color recognition and depth perception.


BLUPOND night driving glasses

TAC Semi-polarized Blue light goggles are designed to change your perspective to yellow with computer blue light polarization. Anti-glare high-definition vision blue-blocking glasses protect eyes from blue light and reduce the contrast of bright blue/white glare and flash. The anti-glare night glasses limit distortion. In addition to polarized driving glasses, you can receive a night vision glasses accessory set, with the EVA glasses hard case, screwdriver, sunglasses bag, microfiber cleaning cloth, glasses clip, and night driving glasses gift box.



Red Dollar Handmade Wood Carved Eyeglass Sunglasses Holder Stand

Each unique spectacle frame is hand-carved and hand-painted, 100% hand-carved and hand-painted natural solid wood. Glasses and sunglasses can be placed on the animal wooden frame. They protect it from being scratched or lost. You are easy to find your glasses, so they are safe and time-saving. The three-dimensional shape of the bracket is loved by animal lovers.


Testing of aspheric lens

The optical axis of the optical center just overlaps with the visual axis of the eye, which is the most ideal state. Because the light from the edge cannot form a focus on the optical axis, when the optical axis does not overlap with the visual axis (the difference is greater than 2mm), such unclear and scattered imaging results will occur. When choosing frames and aspheric lenses, you need to ensure that they fit correctly, to achieve the best visual and decorative effects. Simply put, due to the special design of the lens, we found through a calculation that the optical center should move down 1mm higher than the pupil for every 2° increase in front inclination angle. Otherwise, the wrong pupil height will cause the lens to look like astigmatism, and cause discomfort. For glasses with aspheric lenses, there must be an inclination angle after wearing. The specific angle varies from person to person.



Can lens thickness affect eyeglasses definition?

The lens thickness of myopic glasses will not affect definition, so you can choose the glasses with appropriate degrees according to your own situation. It is recommended to choose the lens with a membrane, which can increase the transmittance and can play the effect of anti-ultraviolet and waterproof functions. The thickness of the lens is related to the refractive index of the material used in the lens. The higher the refractive index of the lens, the thinner it is. The so-called ultra-thin lens is the lens with a high refractive index. From the side view of the lens, there will be a fuzzy color phenomenon. Because the nearsighted lens is a concave lens, and the edge is similar to a prism, which can produce a prism effect. In addition, when you wear glasses, try to choose a smaller frame, so you can avoid the prism effect on the edge of the lens.


Prescription glasses are more comfortable to wear than other glasses for visually impaired people. For example, there exist bulky protective glasses designed to be worn over existing eyeglasses. There are protective glasses with prescription lenses for the visually impaired, for example. You can consider wearing prescription glasses while driving at night. When driving at night with these glasses, you will feel safer and more comfortable. Even if you feel like you're a skilled, capable driver. Driving glasses can be an investment. But that being said, it's better to invest in night-driving glasses now than to pay the price later.


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How to Choose Glasses for Heart Shaped Face?

Wearing a great pair of glasses can make you look more beautiful and fashionable. You want to find a pair of eyewear to correct your vision. Of course, they should be comfortable to wear.

Everyone has their unique style. So, finding a pair of great sunglasses is not an easy job. So, in this post, we will show you some suggestions to glasses for heart shaped faces.

Before proceeding with how to choose glasses for heart shaped face, you need to know whether you have a shaped face. Heart shaped face has some obvious features, such as a broad forehead; high, prominent cheekbones; a narrow jawline; and an angular chin. So, you can check whether you have these features.

However, if you do not know what face shape you have, you can click here to take a reference and have a check.

After checking the face shape you have, we will show you some glasses for heart shaped face.

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