The Centre for Contact Lens Research (CCLR) of the University of
Waterloo, and Vision Cooperative Research Centre (Vision CRC) have been involved in the research
and development of Silicone Hydrogels for continuous wear for the
last 10 years. This website aims to share the considerable experience
and knowledge we have gained over this period with colleagues, practitioners
and students.
Silicone hydrogels are a revolutionary class of highly oxygen
permeable contact lens materials which evolved in response to
the known hypoxic consequences of wearing low Dk hydrogels on
an extended wear basis. These materials will be described in
detail in a feature article on this website, but in essence the
materials contain both silicone and hydrogel polymers in a structure
which allows the transmission of oxygen and fluid essential for
ocular health. The lens behaves similarly to other soft lenses,
and provides similar levels of comfort for patients, but with
the added convenience of extended wear.
The purpose of this website is to make accessible to you the
information that has been published by our own groups and others
in various forms. Each month we will feature editorial articles,
starting with one by Professor Brien Holden on Where We Are with
extended wear, and "Getting An Attitude" towards these
new lenses. Future topics will include: how to use these lenses
in practice; common adverse events observed with these lenses
and the strategies to manage them; the physico/chemical properties
of the materials and how they work; and the clinical trial results
of silicone hydrogels compared to low Dk hydrogels.
Within the site you can access the Research Library, which contains
a glossary of terms, current publications which may include abstracts
(depending on availability), full text articles and posters from
our respective institutions. We also invite you to ask questions
to our panel of experts in the FAQ section. We have included
links to other relevant sites, and some optional surveys which
will help us tailor the site to your needs.
I hope this website helps you, and we welcome comments on the
site and the information it presents. Enjoy!
Desmond Fonn |