Picking the correct pair of lenses is way more important than picking the right frame.
Eyeglasses that you’re wearing serve your fashion needs but lenses, on the other hand, are all about safety and vision. So it’s important to choose the right lenses for yourself, as it’s a matter of eye health and not fashion.
Eyewears are also a fashion accessory just as purses, jewellery boots and shoes, etc. and wearing them will enliven your style and make you look more refreshing and put-together.
Lenses: diligently and precisely crafted glasses
Lenses are made according to the requirements of the glasses wearer. They are designed in a way that their curves and cuts refract the light and change the direction of light. This further helps our eyes to focus properly on the image, object, subject or text.
Earlier, lenses were made of glasses that were heavy and delicate. These eyeglasses indeed helped in improving vision but they used to be bulky, uncomfortable and hard to carry.
Now, people prefer buying lenses that are made of high-index polymers. It’s because they are lighter and more durable compared to old-school heavy lenses.
These lenses were initially designed to treat nearsightedness and farsightedness, but as the technologies evolved, new types of lenses got made for different conditions. There are mainly 6 types of lenses for glasses.
- Single vision
- Intermediate lenses
- Bifocals and varifocals
- Blue light lenses
- Transition lenses
- Anti-reflective lenses
It’s important to know that you shouldn’t self-prescribe these lenses, you must get your eyes tested and let the optometrist examine your eyes. This way you can correct the refractive errors in your eyes without causing any harm.
Different Types Of Lenses For Glasses
Here’s a comprehensive guide for people who have a hard time understanding the complexities and working of a particular type of lens. You put so much effort into searching for the right frame that looks and fits you the best, so why refrain from doing some research before purchasing lenses?
There are many types of lenses for glasses and this creates a lot of buzz about what lens is more suitable for a specific eye problem.
Single vision lenses
This type of lens supports single vision, either you can have lenses that support farsightedness or they can only assist your eyes for nearsightedness/ short-sightedness.
You can’t use these glasses as a solution for two problems; myopia and hyperopia. Either you can read a book or drive a car, and if you wish to do both, you might require bifocals or varifocals.
These lenses are used to have a clear and crisp view of the objects that are placed between the near point and far point of your eyes. Intermediate lenses are very helpful for people who work maximum time in front of screens such as computers, or televisions.
Bifocals and Varifocal lenses
Eyeglasses with two different optical strengths are known as bifocals. These lenses are frequently recommended to people who have presbyopia.
Back in the day, when these glasses were hand-crafted, there used to be a visible line between the different types of lenses. Now, these lines aren’t visible as the power of the lenses is gradually decreased or increased, instead of two different lenses being merged together. This results in a flawless movement between the two refractive zones.
Varifocal lenses are also known as trifocals and multifunctional eye lenses. They are worn by those who are above 40 and whose eye muscles are weaker than any other young individual. When eye muscles get weak, it’s hard to focus on objects that are placed near or far from your eyes.
These lenses bridge the gap between two types of lenses and people with this problem do not have to switch between two different sets of glasses.
There are 3 different refractive zones in this type of lens, that are near, far and intermediate. It is absolutely helpful in providing vision support for all three zones. Know more about the difference between bifocals and varifocals here.
Blue light lenses
Blue light has a shorter wavelength and high energy levels. Blue light can pass through the cornea of our eyes and damage the optic nerve cells.
Blue-light lenses are designed specially to reduce the amount of blue light that reaches our eyes. These lenses work as a filter that helps in counterbalancing the effects of blue rays.
People who spend maximum time in front of TV, Computer or phone screens must wear glasses that contain blue light lenses. This will help in reducing the harmful effects of blue rays.
Transition lenses work like magic. They work like normal prescription glasses when indoors and the moment they get exposed to sunlight, the lenses start responding to the rays.
Lenses start changing colour and a dark-tinted layer is formed on the surface of the lenses. They start appearing and functioning like sunglasses.
Intensity of the sunlight is responsible for the colour of the tinted layer. The tinted layer of the lenses gets darker as the intensity of sun rays is increased and vice versa.
Light that gets reflected by any surface bounces back into our eyes, this creates glare and halos. To reduce the effect of reflected rays, lenses are layered with a special anti-glare or anti-reflective coating that decreases the amount of reflective light.
These lenses are used by people who drive at night. The reflected light coming from the headlights of other vehicles can hinder the vision of the driver.
Hope this guide comes as a great help and assists you in buying the right type of lenses for clear vision.
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