Heralded as "a quantum leap forward in the evolution of lens design for
the condition" of keratoconus the Rose Kô lens has become the world's most
frequently prescribed rigid gas permeable contact lens for
Unlike traditional contact lenses, the complex geometry built into
every Rose Kô contact lens closely mimics the cone like shape of the
cornea, for every stage of the condition.
The result, a more comfortable fitting lens for patients and better
sight (visual acuity).
The Rose Kô lenses complex geometry has only become possible since
computer controlled contact lens lathes were developed to cut plastic to
precisely the right shape.
The Rose Kô lens has a number of features that make it ideal for
It's complex geometry can be customized to suit each eye and can
correct all of the myopia and astigmatism associated with Keratoconus
They are easy to insert, remove and clean
They provide excellent health to the eye, because they allow the
cornea to "breathe" oxygen directly through the lens
Practitioners have the Rose Kô trial set fitting system which
achieves a first fit success in over 80% of patients
Standard lens designs with fixed optical zones (OZ) do not ideally fit
the cone shape of keratoconus patient's. Figure 1 shows a standard
lens that will yield unwanted pooling at the base of the cone and
peripheral bearing that can seal off and cause corneal problems.
Figure 2 demonstrates the benefits of a smaller optical zone to fit the
cone contour. The design results in little tear pooling at the base
of the cone and shows an even distribution of tears under the lens.
The Rose Kô system has set optical zones to maximize vision while
maintaining good corneal health.