But beyond being just a multifocal lens with no visible lines, progressive lenses enable people with presbyopia to again see clearly at all distances.
Advantages of progressive lenses over bifocals
Bifocal eyeglass lenses have only two powers: one for seeing across the room and the other for seeing up close. Objects in between, like a computer screen or items on a grocery store shelf, often remain blurry with bifocals.
To attempt to see objects at this "intermediate" range clearly, bifocal wearers must bob their heads up and down, alternately looking through the top and then the bottom of their bifocals, to determine which part of the lens works better.
Progressive lenses more closely mimic the natural vision that you enjoyed before the onset of presbyopia. Instead of providing just two lens powers like bifocals (or three, like trifocals) , progressive lenses are true "multifocal" lenses that provide a smooth, seamless progression of many lens powers for clear vision across the room, up close and at all distances in between.
Natural vision with no "image jump"
The visible lines in bifocals and trifocals are points where there's an abrupt. Also, because of the limited number of lens powers in bifocals and trifocals, your depth of focus with these lenses is limited. To be seen clearly, objects must be within a specific range of distances. Objects that are outside the distances covered by the bifocal or trifocal lens powers will be blurred and change in lens power.
Progressive lenses, on the other hand, have a smooth, seamless progression of lens powers for clear vision at all distances. Progressive lenses provide a more natural depth of focus with no "image jump."
The power of progressive lenses changes gradually from point to point on the lens surface, providing the correct lens power for seeing objects clearly at virtually any distance.
It provides clear vision at all distances (rather than at just two or three distinct viewing distances).
For the best vision, comfort and appearance, you can choose wider corridors for easier and quicker adapt than last generation progressive lens. You can move into the page https://www.universeoptical.com/wideview-product/ to check more details about our latest progressive designs.