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Contact Lenses – Bifocal or Multifocal?

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Contact Lenses – Bifocal or Multifocal? Powered By Docstoc
					   order to create clear near vision, your eye
In In order to create clearnear vision, your eye
   increases power though a a process known
increases its its power thoughprocess known as
accommodation.
   as accommodation.

   This process is similar to what camera
This process is fairlyfairly similar to awhat a
   camera lens does in order to objects objects
lens does in order to focus on focus on close to
    camera lens.
theclose to the camera lens.

   Presbyopia condition in in which eye is is
Presbyopia is ais a conditionwhich thethe eyenot
able to complete the process of accommodation
   not able to complete the process of
successfully and is normally a result of aging.
   accommodation successfully and is normally
   a result of aging.
   order to create clear near vision, primary
In Until recently, glasses, were the your eye
increases its power though a process known as
   solution that was offered.
accommodation.
   However, with recent developments there
   are now is variety of different a camera
This process a fairly similar to what solutions
   provided order to lenses as well.
lens does inby contact focus on objects close to
the camera lens.
   Here is a quick look at exactly what this
   condition a and certain types of contact
Presbyopia is is condition in which the eye is not
able to complete the process of accommodation
   lenses can provide a solution.
successfully and is normally a result of aging.
   order to create their near vision, your to
In As a person ages,clear eyes naturally starteye
increases its power though a process known as
   lose the ability to successfully increase
accommodation.
   power by the eye, thus the process of
   accommodation can no longer take place.
This process is fairly similar to what a camera
   In most cases, this focus on objects close to
lens does in order to does not start to happen
    camera lens.
theuntil a person hits 40 years of age and the
   first symptom is normally most noticeable as
   reading is a condition uncomfortable.
Presbyopiabecomes more in which the eye is not
able to complete the process of accommodation
successfully and is normally a result of aging.
   order to create clear still be able to eye
In A presbyopic eye willnear vision, your see
   some its power though a clearly, however
increases objects completely process known as
accommodation. will start to blur. Essentially,
   some objects
   the eye enters a fixed state of focus.
This process is fairly similar to what a camera
   This means that at focus on objects the eye
lens does in order to certain distances close to
    camera lens.
theis perfectly suited to create a clear picture
   (many times the vision will even be 20/20),
   however at condition distance, the images
Presbyopia is a any other in which the eye is not
   will complete the process of accommodation
able to bur.
successfully and is normally a result of aging.
   order contact lenses near vision, solution
In Before to create clearwere used as a your eye
   to this problem, though a process known as
increases its power people were forced to rely
accommodation.
   on either bifocals or traditional reading
   glasses.
This process is fairly similar to what a camera
   There in a variety of different contact lens
lens doesare order to focus on objects close to
    camera lens.
theoptions available today.

Presbyopia is a condition in which the eye is not
   The two most popular are mono-vision
able to complete the process of accommodation
   lenses and multi-focal lenses.
successfully and is normally a result of aging.
   order to create clear near vision, specific
In Both options have proven to carryyour eye
   benefits and though a process without
increases its power drawbacks and known as
accommodation. what each of these options
   understanding
   actually provide, making a decision can be
This process is fairly similar to what a camera
   difficult.
lens does in order to focus on objects close to
    camera lens.
theFortunately, the differences are easy to
   understand once you realize what they are
   and the is a condition in which the eye is not
Presbyopiaspecific contact lenses work. Here is
able to complete the process of accommodation
   a closer look at the differences between
successfully and is normally a result of aging.
   bifocal and multifocal contact lenses.
   order to fundamental difference is eye
In The mostcreate clear near vision, yourthat
   bifocal contact lenses have process known as
increases its power though a two prescriptions
accommodation. lens.
   within the same

   Multifocal contact lenses to what a camera
This process is fairly similar carry a range of
   different order to focus on objects close to
lens does in powers in each lens, which is
    camera lens.
thesimilar to a progressive lens that is used in
   glasses.
Presbyopia is a condition in which the eye is not
able to complete the process of accommodation
successfully and is normally a result of aging.
In order to create clear near vision, your eye
    It is its power to use this differentiation,
increasesimportant though a process known as
accommodation. people will use “multifocal” as
    because some
    a catch-all that includes any lens that has
This process is fairly similar to what a camera
    more than one power (including bifocals).
lens does in order to focus on objects close to
    camera there
the Overall lens. are 2 basic designs for lenses
   that treat presbyopia: Alternating and
Presbyopia is a condition in which the eye is not
   Simultaneous.
able to complete the process of accommodation
successfully and is normally a result of aging.
   order to create vision design forces your
In The alternating clear near vision, your eye
   pupil its power though a process different
increases to alternate between two known as
accommodation.
   powers by changing your gaze upwards or
   downwards.
This process is fairly similar to what a camera
   This design is to focus on objects bifocal
lens does in orderspecifically used for close to
    camera lenses, however there have been
thecontact lens.
   some trifocal lenses that have tried applying
   this same a condition in which the eye is not
Presbyopia isstrategy.
able to complete the process of accommodation
successfully and is normally a result of aging.
   order are having problems imagining eye
In If you to create clear near vision, yourhow
   this type power though a process known as
increases its of lens works, take a moment and
accommodation.
   picture a traditional pair of bifocal glasses.

   Those lenses function the to what camera
This process is fairly similarsame wayathat the
   alternating design bifocal on objects close
lens does in order to focus contact lenses do. to
the camera lens.
   The reason that some people feel that this
Presbyopia is a condition in which the eye is not
   option is the best is because you are in total
able to complete the process of accommodation
   control of which power you are using.
successfully and is normally a result of aging.
In order to create clear near vision, your eye
increases its power though a process known as
accommodation. contacts are normally smaller
  These types of
  than traditional soft contact lenses and
  instead of is fairly similar to what a camera
This process moving with your eyes, they stay
  fairly stationary. This allows your close to
lens does in order to focus on objects eye to
the camera lens.
  easily move from one power to another.

Presbyopia is a condition in which the eye is not
able to complete the process of accommodation
successfully and is normally a result of aging.
In order to create clear near vision, your eye
  There are two different types
increases its power though a process knownof  as
  simultaneous
accommodation. designs for presbyopia. The
  first is the concentric ring design.
This process is fairly similar to what a camera
  The concentric to design objects close to
lens does in orderring focus onis primarily for
  bifocal contact
the camera lens. lenses.

  With this a condition in are two eye is of
Presbyopia is design, there which the rings not
  different powers process of accommodation
able to complete thethat lie within your pupil
  area. The center can be either of aging.
successfully and is normally a resultnear or far
  vision powered and the decision is normally
  up to you.
In order to create clear near vision, your eye
increases its power though a process known as
accommodation.

This process is fairly similar to what a camera
lens does in order to focus on objects close to
the camera lens.
  To best imagine this type of design, try to
Presbyopia is a condition in which the eye is not
  imagine a dartboard. Now imagine that each
able to complete the process of accommodation
  ring alternates between near and far vision.
successfully and is normally a result of aging.
In order to create clear near vision, your eye
  The other type though a is the known
increases its powerof design process asphericas
accommodation.
  multifocal design.

  These contact fairly work the what a camera
This process is lensessimilar tosame way that
  progressive eyeglass focus work.
lens does in order to lenses on objects close to
the camera lens.
  There are a range of different powers that
  are all spread out and in which the eye is not
Presbyopia is a condition blended across each
able to complete the process of accommodation
  lens.
successfully and is normally a result of aging.
In order to create clear near vision, your eye
increases its power though a process known as
accommodation. proven to be extremely
  While this has
  effective, it is important to note that it will
  take some is fairly your brain to a camera
This process time for similar to what learn to
  choose in order to focus on objects close
lens doesthe correct prescription level for anyto
the camera lens.
  given moment.

Presbyopia is a condition in which the eye is not
able to complete the process of accommodation
successfully and is normally a result of aging.
In order to create clear near vision, your eye
  Because of power though a process known
increases its the vast array of options that youas
  have to choose from, trying to decide
accommodation.
  between bifocal and multifocal contact
  lenses can is difficult one.
This processbe afairly similar to what a camera
lens does in order to focus on objects close to
  Many people suggest that the best idea is to
the camera lens.
  test out a variety of different options until
  you find is condition in which the eye is not
Presbyopiathearight fit for your specific needs
  and comfort.
able to complete the process of accommodation
successfully and is normally a result of aging.
In order to create clear near vision, your eye
  As contact lenses continue to become the
increases its power though a process known as
  more popular
accommodation. option, there will continue to
  be improvements in regards to creating and
  improving is fairly multifocal solutions.
This processadditionalsimilar to what a camera
lens does in order to focus on objects close to
the camera lens.

Presbyopia is a condition in which the eye is not
able to complete the process of accommodation
successfully and is normally a result of aging.
Find an eye care professional near you
who offers prescription contact lenses.

				
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posted:10/28/2010
language:English
pages:19
Description: As a person ages, their eyes naturally start to lose the ability to successfully increase power by the eye, thus the process of accommodation can no longer take place. As contact lenses continue to become the more popular option, there will continue to be improvements in regards to creating and improving additional multifocal solutions.