This innovation increases clarity and a range of vision correction, from near-distance to meters away. No need for a second pair of glasses or peering over the bifocals.
Another term often referred as Progressive Lenses is "No-Line Bifocals" or "No-Line Trifocals", which eliminates the visible lines of traditional bifocals and trifocals and hides the fact that you need reading glasses. No one needs to know you're wearing glasses for fashion or your arms have "grown too short" for you to see up close.
Once you reach the age of 40, give or take a few years, a person's vision gradually changes and increases over a five to seven year period and then it usually stabilizes. The gradual change is caused by the crystalline lens inside the eye to change shape. The changing shape of the crystalline lens allows one to focus from distance to near and back. Tiny attachments to the lens called zonules gradually lose their ability to cause the lens to change shape and hence to allow focusing at different distances. This is a natural maturing (aging) change and will happen to all of us.
For all the powers of progressive lens to fit within a pair of eyeglasses the lenses use to have to rather large but that time has past. Here at SimplyEyeglasses.com, our optical lab provides and recommends three types of progressive lenses:
To further touch on the progressive lens type Digital HD, a good comparison in layman's terms would be the difference between a regular TV and an HD TV. Advanced processing along with backside power placement which moves the lens correction closer to the eye allowing for crisper, clearer and sharper. Contrast sensitivity is improved therefore making night driving easier and better. Wider reading and intermediate areas are found and larger depth of field can be seen. Almost immediate effortless adaptation.
You must learn to move your head to see things, you cannot simply keep your head straight and move your eyes because you'll be looking through a blurry part of the lens. As mentioned, it could take some time to adapt, one could experience dizziness and headaches during the time that you are adapting. Please call us to speak to optician or consult your eyecare specialist to get instructions on how to use progressive lenses.
With today's lens designs, nearly everyone can wear progressive lenses successfully especially with contemporary digital technology.