What Prescription Is Legally Blind?
Sun, Apr 03, 22 By : Koalaeye
There are many types of clear frames. Sometimes I especially envy those European and American star artists who have no secular style of dressing and collocation. A lot of times it feels like it was made for them rather than bought. Just like these clear or wire-framed glasses, no matter how they are used together, they will reveal an appropriate, stylish, confidence, and highly individualistic look. The reason is the charm that comes from inner confidence. If you want to...

There are many types of clear frames.

Sometimes I especially envy those European and American star artists who have no secular style of dressing and collocation. A lot of times it feels like it was made for them rather than bought. Just like these clear or wire-framed glasses, no matter how they are used together, they will reveal an appropriate, stylish, confidence, and highly individualistic look. The reason is the charm that comes from inner confidence. If you want to ask what the most fashionable frame glasses look like, clear frame and gold-rimmed glasses must be selected.

There are oval, round, square, flying transparent frames, and so on many kinds.

When choosing clear frames, be careful to choose the one that suits your face shape. Oval and round clear frame suit heart-shaped face, square face, and long face. A square face with a round transparent frame will look soft.


Color process of Contact lenses

Pigment printing process

It refers to the direct printing of pigments or patterns on the inside of the lens and then drying, which is the main production process of poor-quality chromatic contact lenses. Usually, small factories and small workshops use this method. The lens is being phased out because the pigment can easily seep out from the surface during wearing, causing discoloration and staining, and irritation to the eyes, which is a big risk.

Pigment build-in process

To be specific, the lens made by sandwich technology is a three-layer structure, the front and rear are colorless transparent layers, and the middle is a colored layer. After the processing of sandwich technology, the color layer is wrapped in the middle of the front and rear transparent layer, so that the pigment will not contact the eyes, which will not cause irritation and injury to the eyes. The downside of this process, however, is that the lenses are slightly thicker than normal contact lenses and are less oxygen-permeable, so they are not suitable for long-term wear.

The pressed film manufacturing process

This is a relatively new method of a similar sandwich process, and the color (pattern) is also made between the front and rear layers of the lens. But the color (pattern) is used to fill in the film process. During lens curing, the pigment seeps into the material instead of sticking to the surface. It feels as if the lens is covered in color within a single layer. This reduces the middle layer and makes the lens thinner, which naturally makes it more comfortable and permeable to oxygen.



How to Find Reading Glasses Strengths?

Some reading glasses also come with strengths. So, how do you know what strength reading glasses to get and how to find reading glasses strengths? The strength of all reading glasses is measured in dioptre, with units increasing by 0.25 dioptre depending on the power of the lens.

The reading glasses strengths range from +0.75 dioptre to +3.00 dioptre. Both lenses have the same power which is indicated by a permanent marking on the inside of the frame or with a removable sticker on the lens. So, you can find the reading glasses strengths of the glasses.

The important thing you need to notice is that when higher the number, the greater the power of the lenses is when choosing reading glasses. So, glasses with a marking of 1.0 are low power while those marking +3.0 are high powered.


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%.



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.


Thin frame glasses

Curved-rimmed glasses are very popular and common nowadays. It feels serious and intellectual. It is suitable for all face shapes. There are many colors to choose from. Fairies who especially like square frames can choose thin square glasses with gold wire. The border is not too obvious but it has edges.



What Are Computer Glasses?

Computer glasses or glasses for computer are prescription glasses that are designed to wear when doing computer work. They allow you to focus your eyes on a computer screen. There are other activities such as playing piano or shooting requiring a similar custom fitting.

Glasses for computer use are also known as blue light glasses. They block blue light that causes eye strain due to prolonged viewing of digital screens. Blue light is part of the color spectrum, and everyone is exposed to it through sunlight.

The glasses for computer use have a shorter wavelength than other colors and are emitted by electronic devices such as smartphones, TVs, computers and more. The glare from blue light is what causes digital eye strain or other symptoms. But the glasses for computer can protect your eyes from the damage of the glare.

Depending on an individual’s vision and type of work, there are several options while selecting glasses for computer use.

Monofocal: Monofocal or single-vision glasses are designed for computer work so that they provide the appropriate optical correction for the working distance between the screen and the user’s eye. These glasses allow users to view the whole screen with a minimum up-and-down head movement. However, the disadvantage of the monofocal glasses is that both distant objects and reading materials that are closer than the computer screen will appear blurry.

Bifocal: When it comes to glasses for computer screens, the bifocal glasses would be a choice. Bifocal glasses can be prescribed so that the upper segment is set up for screen distance and the lower segment for work. The disadvantage of these bifocal glasses is that it will blurry if the objects are farther away than the screen.

Trifocal: These trifocal glasses for computers have lenses that combine a segment for far vision, another for near vision and the third one for at the screen distance. The disadvantage of these glasses for computer screen is the limitation to view areas.

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