Your Aging Eyes
As we age, we lose our ability to focus to close distances.
Shortly after birth, our eye has an amazing range of focus. A baby can focus on something right in front of his/her eyes.
But over time, our eye's lens becomes increasingly less able to change shape. So, as we age, we lose our ability to focus to close distances. This loss of "accommodation" is a natural consequence of aging and progresses with time.
Most people don't notice this until their 40's.
You probably first noticed this when you started to have trouble reading comfortably. Within another 20 years, you will have lost almost all of your accommodation.
Presbyopia: a progressively diminished ability to focus on near objects with age, caused by a decrease in the flexibility of your eyes' lenses.
In addition, many of us have imperfections in the shape of our eyes that cause us to be nearsighted, farsighted, and/or have astigmatism. These imperfections can be corrected for with ‘distance’ prescription lenses or surgery.
When we were younger the distance prescription was all we needed to see clearly. Once our distance vision was sharp, the lens in our eye could increase its curvature to allow us to focus on closer objects.
But, as we aged, our eyes lost the ability to do this, and we lost the ability to focus on something close.
Read a more complete explanation [pdf] of nearsightedness, farsightedness, astigmatism and presbyopia.
Coping with Presbyopia
Until now, we have coped with presbyopia has been by using two or three sets of corrective lenses, each made to focus at a different distance:
- one to focus at "far" or distance (just your distance correction)
- one to focus at some middle distance (your distance correction plus the extra curvature required for mid-focus)
- and one to focus at reading distance (your distance correction plus the extra curvature required for close focus)
You can do this by swapping between separate glasses, one for each distance. Or, combine two or three ‘mini-lenses’ into one single lens (such as bifocals, trifocals, and progressives) then tilt and swivel your head to look through each ‘mini-lens’ to see clearly.
Read a more complete explanation [pdf] of eyeglass options for presbyopes.
A Better Solution
Now there is a better solution. Superfocus glasses mimic the action of the youthful human eye. Each lens contains a unique adjustable focusing lens that changes curvature to adjust focus, just like your eyes' lenses used to do when you were younger.
The entire lens focuses instantly to any distance near, far, and anywhere in between -- wherever you look.
And, Superfocus automatically compensates for the normal changes in your focus over the course of a day -- and from day-to-day. No other vision correction can do that.
See how they work and learn why Superfocus glasses are a better solution. Stop compromising, and start seeing your whole world in focus, all the time.