I am a
contact lens manufacturer from Brazil (member of the CLMA) and I
also run the IOSB (Instituto de Olhos Dr. Saul Bastos). We have a
very advanced GP special design for keratoconus and pellucid
marginal degeneration called Ultracone as well as another design for
post-graft patients called Ultraflat.
results we've obtained with these lenses in our clinical experience
are very high. We're from the Joseph W. Soper school; Dr. Soper was
a close friend of ours, and we both worked with him and learned much
from him in the United States. We improved the Soper Keratoconus
design and developed the Ultracone, which is a type of modified
experience with the Ultracone lens indicates that its performance is
as high as 99.5 percent for keratoconus cases. We also have a
special Ultracone design called Ultracone Mini-Scleral, which can
fit corneas with curves as high as 65.00D and even up to 75.00D.
Corneal topography sometimes shows even steeper curves that we've
succeeded in fitting with this design. Based on our experience in
the United States and in the United Kingdom, I believe that the
Ultracone design is excellent for keratoconus.
developed a consultory that I named Digital Consultory, in which
practitioners can shoot images or even record a small movie of the
fluorescein pattern during the final test with the best lens, and we
can provide the doctor and his patient with a personalized design.
This new philosophy has proven to be very effective because I
analyze the video or picture myself, and I understand the contact
lens manufacturing technology and process. I also know what makes a
good cornea/lens fitting relationship and I can modify the lens
during the manufacturing process and also after the final exam.
add that we just use corneal topography technology to study the
corneal pathology. It gives us an idea of what diagnostic lens we
will try first. Corneal topography is a great tool, but when dealing
with an irregular corneal surface, the only way to achieve the best
results is to observe the fluorescein pattern. I never use
fluorescein dip, only strips so it won't overflow the tear film.
Overflow can cause misjudgment of the tear film pattern. After
observing the fluorescein pattern I decide if the lens/cornea
relationship is reasonable and which modifications the lens needs to
achieve the best performance possible.