The most suitable lens
Eye related accessories, whether they may be vision aids, eye correctors, reading aids or for eye protection; there is always that type of lens that is needed to make the eyeglass what it is and what it is used for.
The common question is which lens is appropriate for which?
These modern days, many eyeglass lenses are already innovated pretty much the same as the flow of technology advancement. A not so long time ago, these eyeglass lenses especially those that are used more as visual aids, were ‘only’ made out glass.
Today, eyeglasses are not only limited to using glass as lenses but there are already those made out of some type of high-end and advanced technology plastic. Due to this high-tech plastic, many lenses – if not most, are now lighter and do not break easily like it did in the past. Think about the weight of magnifying glasses or a magnifier with lamp, even when they are not sized large they can weigh a great deal. The higher the eye grade, the thicker and heavier the lenses become and so does the entire eyeglass with the frames attached. And since they are made of glass, they have a huge tendency to being prone to cracks and breaks.
Now, it does not stop there. These modern technology lenses can be also be made with a filter feature that will help in protecting your eyes from damaging ultraviolet rays.
Four of the common lens types are Single Vision, Reading, Bifocals and Progressive.
Single Vision Lenses – Lenses made for those with astigmatism, nearsightedness and farsightedness. Single vision lenses are used to correct these common defects associated with vision.
Reading Lenses – Lenses used and made for those that are near sighted or patients that cannot see or focus on objects up close. These lenses make right or accurate the loss of ability to see and focus on near objects. But there’s a catch. Although these lenses correct the near sightedness it may also have the tendency of making those that are of far distance blurry. That is why there are those that use 2 glasses – one for reading, the other for far sightedness.
Bifocal Lenses – With the prefix “bi”, these are lenses that come with two different optical features. A Bifocal eyeglass combines both lenses for nearsightedness and farsightedness. Most conventional bifocal glasses have a noticeable line or separator that indicates there are two lenses.
Multifocal Lenses – With the prefix “multi”, these are lenses that come with multiple optical features. A Multifocal lens is also widely known as progressive lens and is pretty much similar to a bifocal lens. The only difference is that multifocal lenses have three divisions – near, far and intermediate.
Processing your request, Please wait....
