Are you considering to buy bifocals? Here is an easy guide
Are you planning to buy bifocals but need to be informed what
kind of bifocal contact there are? Let’s try to give you an
idea what options you have:
Bifocal contact lenses are designed to correct nearsightedness and
farsightedness at the same time.
Basically each bifocal lens has two powers: one to correct distance
vision, and the other to correct near vision.
Bifocals are based on 3 different design principles
concentric design:
- distance power in the center, near power around the center,
or
- distance power around the center and near power in the center.
alternating design:
- top of the lens has distance power. Near power on the bottom
of the lens. Just like bifocal glasses.
monovision:
- This consists of wearing a contact lens on one eye for distance,
and on the other for near. No real bifocals, but an alternative
if you cannot get used to one of the other designs. A drawback could
be some loss of depth perception.
n.b. All these designs need some getting used to. Be sure to see
your eye doctor which lens design is best for you.
You can buy bifocals in 2 different materials
- soft contact lenses
- rigid gas permeables
You can buy bifocals in 4 different wear fashions
- daily disposable lenses, since 1999 (no eye drops required)
- frequent replacement lenses (1-2 week)
- 1-3 month lenses
- night and day contacts
Bifocal Acuvue contacts
One advanced bifocal design that deserves some special attention
is the following:
When the makers of Acuvue contacts developed their bifocal contact
lenses, it was a technological breakthrough. That's because these
bifocals are the only contact lenses with pupil intelligent design..
It has five invisible, concentric zones that allow you to see clearly
at varying distances. So you won't find yourself having to think
about which part of the lens to use - you simply put them on and
go.
Other features of these lenses include:
-
An inside-out indicator - so they go on right the first time.
-
Visibility tint - so you can easily see them in the case and
on your finger .
-
Flexible wear schedules - to fit your lifestyle.
-
UV Blocking* - These bifocals block most UV rays.
-
Edge Design - Promotes exceptional comfort.
-
Precision Junctions - Intended to reduce blurs and halos.
All these bifocal lenses can be found in the following specialized
stores:
Why you should buy your bifocal contact lenses online
To buy bifocals online has a big advantage, that is: they can be
bought much cheaper than in a store in town.
1800Contacts for example is as large as 2400 average opticians combined.
They have at any given moment 20 million contact lenses at their
shelves and the entire stock is renewed every month, so the customer
gets the freshest possible lenses. These volumes mean you can buy
contact lenses sometimes at up to 60% discount.
At most of these shops shipping is for free.
Online support is 24/7 and free of charge as well. ACLens.com even
offers you free online consultation with their staff doctors.
|
