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After the age of 40, our eyes become less flexible and not as capable of focusing on things up close. This may be why you can’t seem to get that newspaper far enough way to see clearly, even with those bifocals or trifocals.
If you have bifocals, you know there can be a frustrating jump in your vision when your gaze goes between distances. And with trifocals, there are two lines dividing three fields of vision, which means a double image jump. This is because of the visible line between the two or three fields of vision. Take driving, for instance. Driving is a fluid motion of sequences. You’re looking at the road, checking your mirrors, monitoring your dash, sometimes reading a map or GPS. With bifocal lenses, your eyes have a delay in focus times; it takes a few seconds to focus in on the new point of vision.
Progressive lenses eliminate that delay. They give you continuous vision at near, middle, and distant focal ranges. There will be no transition period; with these lenses, you will see the street signs, the map, the road, and the dash, all in one smooth sequence.
So does this mean progressives give you better vision? Not necessarily. Also referred to as no-line bifocals, these lenses will eliminate the need to hold your books an arm’s length away before you can see the words clearly. This doesn’t make your vision better, it simply makes the way you are seeing more natural.
Depending on you field of vision, you may need a different type of progressive lens. The job you do can help determine what kind of field of vision you require. If you are at a computer all day, for example, the mid-range corridor characteristic may be larger than if you work at close range, such as reading or needlework. Your eye doctor can help you determine what kind of progressive lens is right for you.
For some, a progressive lens can take some getting used to. This period of transition to the new lens may make you feel wobbly or as if your vision is distorted. Depending on the person, this can last anywhere from a few minutes to a few weeks.
Overall, those who have progressive lenses believe them to be worth the extra cost to have a more natural and clear field of vision. Lens designs today are more compact, so you will be able to choose a frame that is as stylish as you desire.
Original Article: https://www.vsp.com/progressive-lenses.html