eye care

An Introduction of Different Lenses of Lens Eyewear

When you enter an eyewear store to choose a pair of lens eyewear, the eye doctor will introduce to you many different kinds of lenses. In order to get a satisfactory lens eyewear, you need to know about those lenses.
Bifocals
While bifocal technology has been around for quite a long time, it is only in recent years that seamless bifocals have become available. These high quality and extra durable plastic lenses allow for a flawless transition between the two different types of lenses for a much more attractive and easier to get used to set of eyeglasses. In general, the top half of your glasses will be used to look at things far away and the bottom half or quarter of your lenses is used to look at things close up. What is even more amazing is how bifocals can be fit on some of the smallest lenses out there, so don't be afraid of picking out small frames, your doctor will likely be able to fit your bifocals in them.
Progressive Lenses
A progressive lens is the next generation of bifocals. They take the technology that was introduced with the no-line bifocal and they go even farther with it. Not only is the line where one lens ends and the other begins gone, but the two lenses have been "blended" at that point so you progressively go from one to the other, instead of there being a stark, sudden change. Often times, people get very frustrated with bifocals when they first get them, because every time they look down, their vision changes dramatically. By using a progressive lens, some of the learning curve has been reduced and practically everyone who has tried them agrees that this style of lens is much easier to get used to. Of course, the price is a bit higher on these lenses, but the technology has been around for a while now and is coming down in price quite a bit.
Trifocals
Like the name suggests, trifocals manage to fit in three different types of lenses in one pair of lens eyewear. Trifocals are often designed with one prescription taking up about 60 percent of the lens, usually in the top half, than a thin line of your second vision in the middle of the lens and then the third window in the bottom right for reading. You may need a slightly larger pair of frames for these lenses, so check with your eye doctor and eyewear maker to find out.
Single Vision Lenses
The simplest type of lens you can order is a single vision lens, but even with the most basic of all choices, you still have several options open to you. The lens itself can be made out of several different types of material. Yes, you can still get eyeglasses made out of glass, but in most cases, you will choose between several different types of plastic, with each kind providing more benefits than the other. Some types are heavier, but less expensive, while others are thinner and lighter, but more costly. Once you have decided on the material, you will need to choose whether you want scratch resistant coating and ultra violet protection, as well. Different shops offer you different coating options, so if you are looking for something in particular, make sure you ask for it by name.
High Index Lenses
We can all remember at least one kid from grade school who had Coke bottle glasses. They were often the kid that got picked on the most and the one that fell down a lot due to their extremely thick glasses. Now, high index lenses are making those thick glasses of the past feel like an artifact that belongs in a museum. Brand new lens technology has allowed for those folks with extremely high prescriptions to have lenses that are as thin as any other pair of glasses. The cost is a bit more for these new types of lenses, but when you consider how much better they look, there really is no other logical choice to make.
Photochromic Lenses
Many people are surprised to learn that lenses that lighten up in the dark and get darker in the light have been around since the 1960's, but it is only with newer, lighter sensitive technology that this style of eyewear has really taken off. If you live in a sunny climate, you no longer need a separate pair of sunglasses, you just need a pair of these.
Each lens has their own advantages. You can balance it up and then make the decision which lens you want to match with your lens eyewear. I hope this article can help you to make your decision more easily.