Showing posts with label Presbyopia. Show all posts
Showing posts with label Presbyopia. Show all posts

Friday, February 4, 2011

Contact Lenses as Treatment for Presbyopia

Presbyopia, unlike many other conditions requiring contact lenses, is not related to anything other than the good old aging process. Astigmatism, nearsightedness and farsightedness are caused by irregularities in the eye itself; whereas this condition isn't due to eye irregularity. It is believed that most people as they get older will experience this eye condition that affects near eye vision. Have you noticed that you hold the menu at arm's length in order to focus on the print? You may be experiencing the effects of Presbyopia.

As we age, the eye is affected and loses some of its flexibility through thickening. A natural process, there doesn't appear to be a way to avoid being affected by the condition at some point in your life. Age-related changes take place in the muscle fibers surrounding the lens and within the proteins in the lens itself.

The loss of elasticity makes it harder for your eyes to focus up close.

There are two forms of treatment available for Presbyopia. One is to manage the condition through corrective lenses such as eyeglasses or contact lenses. The other form of treatment is surgery.

The first form of treatment is the least invasive and comes in the form of reading glasses. Since this condition usually presents itself when you are reading or working on close tasks such as sewing, reading glasses can provide the right amount of magnification. People who wear contact lenses already may find that Presbyopia forces them to also wear reading glasses in addition to the contact lenses they wear all day.

The most common correction for Presbyopia seems to be prescription bifocal or progressive addition lenses (PALs). Bifocal means two points of focus.

In bifocal lenses, the upper portion of the spectacle lens contains a prescription for distance vision, while the lower portion of the lens contains a stronger prescription for close work or reading. Progressive addition lenses differ from bifocal lenses in that they offer a more gradual visual transition between the two prescriptions, with no visible line between them.

There are contact lenses that can be used for effective treatment of this eye condition. Multifocal contact lenses are often used, as is monovision. Multifocal contact lenses are soft lenses that are gas permeable, so oxygen can flow easily through the lens and to the eye itself. Monovision works to train the brain to favor one eye for different tasks. For instance, one eye will wear a distance prescription and the other will wear a prescription for near vision. Some people love the results that come from monovision contact lenses; whereas others report a loss of some degree of depth perception.

For some people, corrective lenses are not an option due to the severity of their condition. In such cases, the best form of treatment may be surgery. NearVision CK is one surgical treatment that is often used. This procedure uses radio waves to create more curvature in the cornea for a higher "plus" prescription to improve near vision. The procedure can also be performed on one eye only for a monovision correction.

For those who find they need a little help as they get older, there are plenty of treatment options for this "age old" eye condition.

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read our FAQ page at fivefilters.org/content-only/faq.php
Five Filters featured article: Beyond Hiroshima - The Non-Reporting of Falluja's Cancer Catastrophe.


View the original article here

Saturday, January 29, 2011

Multifocal Contact Lenses - The Perfect Fit for Presbyopia

Imagine this: you go out to a nice restaurant for dinner. You sit down and the waiter hands you your menu. You open it with great anticipation of the wonderful food you will soon be reading about...but lo' and behold... the print is blurry! To focus on the words, you must hold the menu at arm's length and look "down" at the words. Oh no! You now have your parents' eyes!

Presbyopia is a very common eye condition which many experts believe we all succumb to as we age. This condition is the gradual loss of your eyes' ability to focus actively on nearby objects. A natural part of aging, presbyopia is usually first noticed in your early to mid-40s and often continues to worsen until around age 60.

In the past, this condition would be treated with bifocals or multifocal eyeglasses. Through advances in the way that contact lenses are constructed, however, presbyopia can now be corrected through the use of multifocal contact lenses.

These contact lenses are becoming increasingly popular because contact lenses are generally easier to wear and more appealing to most people when compared to eyeglasses.

Multifocal contact lenses are designed specifically for your individual vision needs to ensure that you are getting exactly the correction you require. These contact lenses are designed to meet your sight requirements in much the same way as multifocal eye glasses. It's the power of multifocal glasses in miniature form - very convenient!

Quite impressive as corrective lenses; multifocal contact lenses are far more advanced than many other types of contact lenses available today. Before prescribing multifocal lenses, your eye specialist will typically perform various tests to determine your specific vision needs.

Through this testing process, the specifics of your new contact lenses will be developed. Multifocal contact lenses are designed to have various areas on the lens itself that correct the various vision issues of the patient.

The greatest benefit to multifocal contact lenses may be that those who wear them to correct nearsightedness, far-sightedness or astigmatism can obtain the vision that enables them to accomplish tasks comfortably without the need for cumbersome eyeglasses. When you wear these contact lenses, no one can tell that you are wearing corrective lenses so you feel great about your appearance.

There is no need for any individual to experience difficulty in reading or performing close tasks. If you find that you are having difficulty with either of these activities; or are experiencing blurry close-up vision, you should see your eye doctor for a complete exam. Only through thorough examination can it be determined what degree of presbyopia you have and what multifocal contact lenses could best benefit your specific vision needs.

To maintain the best vision care possible, it is recommended that individuals receive a full eye exam: - At least once between the ages of 20 and 29 - At least twice between the ages of 30 and 39 - Every two to four years between ages 40 and 64 - Every one to two years beginning at age 65

This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read our FAQ page at fivefilters.org/content-only/faq.php
Five Filters featured article: Beyond Hiroshima - The Non-Reporting of Falluja's Cancer Catastrophe.


View the original article here