As we age, the lens in our eye starts to lose its elasticity, and the muscles that control the lens shape get weaker, resulting in a form of farsightedness called presbyopia. There are quite a few other factors besides age that might accelerate the onset of presbyopia, including eye injury, diseases such as diabetes or multiple sclerosis, drug apply, gender (woman tend to get it at a younger age than men), and occupation (whether your job requires several close up work, presbyopia can occur sooner). While you may be able to control several of the risk elements, there is no identified way to prevent presbyopia and it is considered portion of the natural aging process.
If you discover yourself having to hold books and other reading material farther away from you to read it, you might be developing presbyopia and need bifocal vision correction.
Contact lenses are now obtainable for people who want bifocals and after a discussion with your eye care professional, you will decide whether contact lenses are the right choice for you.
Bifocal contact lenses are obtainable across the entire range of contact lens materials, from rigid gas permeable (RGP) lenses, to classic soft contact lenses, to the fresh silicon hydrogel fluffy contact lenses, which permit much more oxygen to reach the eye. They are too available across the spectrum of wear schedules, from the RGPs which may last a lot of years, to everyday disposables.
The area of the distance and near correction in bifocal contact lenses varies with model. Some, called aspheric, have near and distance correction scattered around the contact lens, and the eye could learn to apply the part it needs at the proper time without you being conscious of it. In others, called concentric, one kind of correction is found in the middle of the contact lens, while the other form of correction encircles it around the outside of the lens. Translating lenses work much like bifocal glasses, with one kind of correction on the top, and the other on the bottom. Another alternative for people with presbyopia is to have the different corrections in different eye lids, called monovision. In other words, in one eye you would wear a prescription to right nearsightedness, and in the other, you would wear on to proper farsightedness. You could probably not sometimes notice the variation, and simply because the lenses are less specialized, it could be more economical to purchase contact lenses this way if it is a model that works for you.
If you discover yourself having to hold books and other reading material farther away from you to read it, you might be developing presbyopia and need bifocal vision correction.
Contact lenses are now obtainable for people who want bifocals and after a discussion with your eye care professional, you will decide whether contact lenses are the right choice for you.
Bifocal contact lenses are obtainable across the entire range of contact lens materials, from rigid gas permeable (RGP) lenses, to classic soft contact lenses, to the fresh silicon hydrogel fluffy contact lenses, which permit much more oxygen to reach the eye. They are too available across the spectrum of wear schedules, from the RGPs which may last a lot of years, to everyday disposables.
The area of the distance and near correction in bifocal contact lenses varies with model. Some, called aspheric, have near and distance correction scattered around the contact lens, and the eye could learn to apply the part it needs at the proper time without you being conscious of it. In others, called concentric, one kind of correction is found in the middle of the contact lens, while the other form of correction encircles it around the outside of the lens. Translating lenses work much like bifocal glasses, with one kind of correction on the top, and the other on the bottom. Another alternative for people with presbyopia is to have the different corrections in different eye lids, called monovision. In other words, in one eye you would wear a prescription to right nearsightedness, and in the other, you would wear on to proper farsightedness. You could probably not sometimes notice the variation, and simply because the lenses are less specialized, it could be more economical to purchase contact lenses this way if it is a model that works for you.
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