What Is Atorization

[Leo M]

I came across this word " atorization ". It's in a pamphlet talking about design advantages of a progressive lens. Can't find a definition. Anybody know what is means? Thanks.

[Diane]

Sounds interesting. I am sure Darryl will have information on this. Just guessing...atoric...asphericity on both sides...controlling both sphere and cylinder aberrations/errors...better vision.

Diane

[Robert Martellaro]

It's the ******* child of 'atoricity'.

[mdeimler]

Was it referring to an Augen lens ?

[Leo M]

No, it's a digital lens I use in Canada. In full it says "Optimized to individual prescription requirements permitting aspherization and atorization for each targeted RX (whatever the power and astigmatism)".

[MakeOptics]

No, it's a digital lens I use in Canada. In full it says "Optimized to individual prescription requirements permitting aspherization and atorization for each targeted RX (whatever the power and astigmatism)".

Differing asphericity applied to both major meridians of power in a prescription can be described as atoricity.

[optical24/7]

From an article I wrote 4 years ago...

AtoricLens Simplified
Atoric lenses seem difficult to understand. Let’s simplify
it.We know and can wrap our brain around
aspheric lens designs and their benefits. Plus aspheric
base curves flatten from the center out to the outer
edges.Minus aspheric base curves get steeper from
the center out to their outer edges. We also know that
they improve the cosmetics, reduce thickness, reduce
induced magnification/mimification, and over all improve optical performance.


Lens designers don’t arbitrarily increase/decrease lens
base curves to come up with aspheric lenses; they use
precise amounts of curve deviation to maximize the
aspheric effect. In other words, one set of curvature
deviation that works for a certain power range is not
ideal for another power range. When dealing with compound
powers,(lenses with cylinder) we’ve got two differing
powers in the lens. This means that a single
aspheric curve is not aspherized optimally for both
powers.This is where atoric designs come into play.


Anatoric design has two differing aspheric curves; one
to optimize the sphere power, and one to optimize the
cylinder power. These have been part of progressive
lens designs for years, but these lens designs used
molding technology. Conventional surfacing cannot
produce atorics. With new free-form lens production,
we can now produce these atoric designs on almost
any lens. In fact most free-form production starts with a
single vision semi-finished blank. The lens curves and
atoricity is done on the back. (Note* there are some
PALdesigns that start with a partial progressive front
and have atoricity optimization on the back surface).
Combining atoricity with POW ( position of wear) measurements
will provide the clearest and widest visual
field for all our astigmatic patients.

[MakeOptics]

One other note:

A lens that has one meridian corrected via a spherical best form curve and the other meridian corrected via apshericity can still be described as atoric. Also the term is applied to the change in surface not the correction similar to FF is a process not a lens design.

[m0002a]

(Note* there are some PALdesigns that start with a partial progressive front and have atoricity optimization on the back surface).

I believe that Hoya ID LifeStyle and ID MyStyle are such lenses.

[optical24/7]

"E" has a boat load of them too.

[Robert Martellaro]

"E" has a boat load of them too.

I just heard that the've acquired 51% of the world ships!

More help for the OP.

http://www.laramyk.com/wp-content/up...ens_Design.pdf

Practical aspects with atoric single vision (no other optimizations).

The wearer might feel an increased sense of refinement, but probably not an increase in acuity, except at extreme angles of gaze.

Practical aspects with atoric segmented multifocals (no other optimizations).

Same as SV, although there may be a slight increase in acuity on the near gaze with moderate to high astigmatics.

Practical aspects with atoric PALs (no other optimizations).

The same as segmented.

However, the more advanced softwares are capable of keeping the progressive design from becoming deformed from interaction with the prescribed cylinder, and the unwanted cylinder inherent in PALs. The strong Rx cylinders, and/or oblique axes benefit the most, resulting in increased zone widths and an additional feeling of refinement from the wearer's perspective. As usual, the devil is in the details- contact the lens maunufacturer for details.