Multifocal contact lenses are available for many middle aged people who have sight problems beyond the standard vision conditions that possess many young individuals. There is no doubt that today's generation of forty and above Americans love to be more active than their parents used to be and so eyeglasses are often a hindrance to this high powered active lifestyle. But the aging process never changes and for many of the over forty crowd, presbyopia begins to raise its ugly head. This word means old age, and describes basically the need for bifocal lens eyeglasses that so many have worn for decades. The condition is caused, most experts think, by loss of tone in the muscles that surround the eye and cause it to become misshapen enough to cause the poor ability to focus on objects close up. While bifocal lenses have been the curative for this problem for decades, there has become a stigma for the type that clearly define the bottom lenses used for reading. So stigmatized were these defined bifocals with older age that modern lenses that simply melted the two together became fashionable, but yet that was not enough for those seeking eternal youth.
The term multifocal contact lenses is really a phrase that means all contact lenses that have more than one power of vision aid. These differing power lenses fall into two categories: alternating vision and simultaneous vision. The alternating lenses work just like regular bifocal eyeglasses; that is to say, when the eye looks up one can see objects far away clearly, and when the gaze is focused downward objects close at hand can also be viewed clearly. The simultaneous types of multifocal contact lenses combine both near and far correcting abilities throughout the correcting lens. Instead of the eye moving up and down switching from prescription to prescription, the visual system of the person employing the lens must actually learn how to select the correct power of the combined lens.
The alternating types of multifocal contact lenses are technically called translating and they are only available in hard contacts, although they are gas permeable. They are in direct contrast to soft contacts, but they are not made with hard plastic, but rather silicon. They are markedly smaller than soft contacts and are removed nightly. They are a far cry from the contacts of the 60's and 70's that were made from Plexiglas, but they still take some getting used to, one of the decidedly strong reasons many prefer softer contacts. The gas permeable type of lens does offer sharper vision than the soft type and when one blinks there is not often the need to refocus nearly as much as with the softer type. While non translating contacts actually rotate on the eye, the gas permeable lens with two different power zones remain in place, thanks to an area of unequal thickness in the lens called a prism ballast. This allows the multifocal contact lenses to remain in a position where gazing up or down for vision correction is still possible.
The simultaneous type of lens is available in both the gas permeable type and in the much softer and larger lens. You can think of simultaneous lenses as two prescriptions put in a blender and mixed together and the user's eye must be trained to tell the two apart, and may take several weeks of wearing before the training is complete. These multifocal contact lenses seek to correct particular odd points on the eye provide a natural vision experience. They are best used for intermediate range projects such as working with computers all day long. Many people do not understand how Christians can put so much faith in things that cannot be seen or touched. Moses too, endured formidable suffering in order to obey God, but Moses had spiritual sight that others did not. "By faith he forsook Egypt, not fearing the wrath of the king: for he endured as seeing him who is invisible." (Hebrews 11:27)
The kind of multifocal contact lenses that you choose will depend on what kind of activities you do on a regular basis. If one is involved in sports or in another activity where instant focus after one blinks is required, it may be more advisable to think about gas permeable lenses. If the wearer candidate wants instant comfort gratification then softer contacts with the simultaneous options will be the better choice. Of course both kinds can be colored to match your eyes or you can change colors to be more exotic. Will the vision you have with your contacts be as good as with bifocal eyeglasses? Probably not, so it's important to carve out realistic expectations before investing in them.
Much of the success with wearing multifocal contact lenses will be the fit of them on your eyes at the outset. That means that your choice of examiner will be very important. There are licensed examiners at most optical stores, but many of them may not possess the kind of experience at measuring and fitting that others do. Ask around and get the names of ophthalmologists and optometrists that friends have used, and go to the ones that have good reputations. Your money for the actual contacts may be refunded in some cases if the experiment in wearing them doesn't work out, but the fees for the examination probably will not be refundable. Wearing contacts isn't for everybody, so don't get discouraged if the attempt doesn't pan out as hoped.
The term multifocal contact lenses is really a phrase that means all contact lenses that have more than one power of vision aid. These differing power lenses fall into two categories: alternating vision and simultaneous vision. The alternating lenses work just like regular bifocal eyeglasses; that is to say, when the eye looks up one can see objects far away clearly, and when the gaze is focused downward objects close at hand can also be viewed clearly. The simultaneous types of multifocal contact lenses combine both near and far correcting abilities throughout the correcting lens. Instead of the eye moving up and down switching from prescription to prescription, the visual system of the person employing the lens must actually learn how to select the correct power of the combined lens.
The alternating types of multifocal contact lenses are technically called translating and they are only available in hard contacts, although they are gas permeable. They are in direct contrast to soft contacts, but they are not made with hard plastic, but rather silicon. They are markedly smaller than soft contacts and are removed nightly. They are a far cry from the contacts of the 60's and 70's that were made from Plexiglas, but they still take some getting used to, one of the decidedly strong reasons many prefer softer contacts. The gas permeable type of lens does offer sharper vision than the soft type and when one blinks there is not often the need to refocus nearly as much as with the softer type. While non translating contacts actually rotate on the eye, the gas permeable lens with two different power zones remain in place, thanks to an area of unequal thickness in the lens called a prism ballast. This allows the multifocal contact lenses to remain in a position where gazing up or down for vision correction is still possible.
The simultaneous type of lens is available in both the gas permeable type and in the much softer and larger lens. You can think of simultaneous lenses as two prescriptions put in a blender and mixed together and the user's eye must be trained to tell the two apart, and may take several weeks of wearing before the training is complete. These multifocal contact lenses seek to correct particular odd points on the eye provide a natural vision experience. They are best used for intermediate range projects such as working with computers all day long. Many people do not understand how Christians can put so much faith in things that cannot be seen or touched. Moses too, endured formidable suffering in order to obey God, but Moses had spiritual sight that others did not. "By faith he forsook Egypt, not fearing the wrath of the king: for he endured as seeing him who is invisible." (Hebrews 11:27)
The kind of multifocal contact lenses that you choose will depend on what kind of activities you do on a regular basis. If one is involved in sports or in another activity where instant focus after one blinks is required, it may be more advisable to think about gas permeable lenses. If the wearer candidate wants instant comfort gratification then softer contacts with the simultaneous options will be the better choice. Of course both kinds can be colored to match your eyes or you can change colors to be more exotic. Will the vision you have with your contacts be as good as with bifocal eyeglasses? Probably not, so it's important to carve out realistic expectations before investing in them.
Much of the success with wearing multifocal contact lenses will be the fit of them on your eyes at the outset. That means that your choice of examiner will be very important. There are licensed examiners at most optical stores, but many of them may not possess the kind of experience at measuring and fitting that others do. Ask around and get the names of ophthalmologists and optometrists that friends have used, and go to the ones that have good reputations. Your money for the actual contacts may be refunded in some cases if the experiment in wearing them doesn't work out, but the fees for the examination probably will not be refundable. Wearing contacts isn't for everybody, so don't get discouraged if the attempt doesn't pan out as hoped.
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