Choosing a cataract lens depends on many personal factors, including In order to determine the power of the lens implant, a series of eye measurements is performed.
designed to allow both distance and close vision without the help of additional distance or reading glasses in most situations.
When light enters a monofocal lens, it is bent to a focus point.
While I've been fortunate to have had good health, my eyes have always been a bit of a problem.
As a child, I was quite near-sighted (ending up around -7 diopters of myopia- i.e. ;-) but this was correctable via glasses and (later on) contacts.
I did consider having Lasik, but the combination of high Myopia and thin Cornea meant I was a borderline case.
In contrast, my wife Wendy at -3 diopters had Lasik done in 2002 by Dr. Keller of Boulder Eye Surgeons (ironically our neighbor across the street) and she had excellent results.As the power of the lens becomes stronger, its ability to bend light more sharply is increased.Since the lens is monofocal, the light can only be bent to one focus point at a time.However, light cannot be focused from both distant and near objects at the same time with a monofocal lens.Most patients choosing a monofocal lens choose to have good distance focus, and use reading glasses to help with near vision tasks.It is interesting to note that many people, who have not had surgery, are not able to see 20/20 at both near and far even with glasses or contact lenses.