Trifocal intraocular lens for enhanced intermediate vision
Carl Zeiss introduces the first trifocal preloaded true-MICS IOL
AT LISA tri has the capacity to provide patients with excellent functional vision,
not only at near and far but also at intermediate distances.
April 12, 2012
The trifocal intraocular lens (IOL) AT LISA® tri 839MP is the next generation of multifocal IOLs from the medical technology
manufacturer Carl Zeiss Meditec. AT LISA tri supports ophthalmo- logists and ophthalmic surgeons in meeting the demands of
cataract and presbyopic patients who lead an active life and expect surgery to provide them with a quality of vision which
is similar to what they were used to before the aging process of their eyes started. With AT LISA tri patients can switch almost
naturally between near, inter- mediate and far distances without being troubled by corrective glasses. “Simply put, there is no
other IOL on the market that is as close to the natural accommodating process as the AT LISA tri”, says Dr. Wolfram Wehner,
ophthalmologist in Nuremberg, Germany.
“We would like to assist our customers in optimally addressing the challenges of surgical cataract and presbyopia correction,"
says Dr. Ludwin Monz, President and CEO of Carl Zeiss Meditec AG. "With the AT LISA tri trifocal IOL this means that patients
are provided with the most natural post-operative vision possible without being reliant on eyeglasses."
Functional vision in all light conditions and lower visual disturbance
Based on the established AT LISA platform, the AT LISA tri is designed to produce more satisfying and predictable visual outcomes
to active patients and maximized pupil independency. The IOL features a unique asymmetrical light distribution between the three
different foci – 50 percent far, 20 percent intermediate, 30 percent near. Additionally the light energy transmittance is increased
for a maintained contrast sensitivity rate and lower visual disturbance. “My patients report significantly less halos and glare with
the AT LISA tri, even when directly questioned about these pheno- mena”, reports Dr. Elisabeth Frieling-Reuss, ophthalmologist in
Munich, Germany, about her experiences.
AT LISA tri can provide enhanced intermediate vision performance with its addition of +1.66 diopters compared to apodized bifocal
or convoluted trifocal IOLs, even under poor light conditions.
AT LISA tri supports ophthalmologists and ophthalmic surgeons in meeting the demands of cataract and presbyopic
patients who lead an active life and expect surgery to provide them
with a quality of vision which equals what they enjoyed before the aging process of their eyes started.
Simple and safe implantation
AT LISA tri is suitable for microincision cataract surgery (MICS) to avoid intraoperative induced astigmatism and reduces higher
order aber- rations. The preloaded AT LISA tri 839MP combined with the innovative BLUEMIXS 180 injector allows easy and safe
implantation through an incision of 1.8 millimeters.
To maintain lasting visual quality and prevent posterior capsular opacification (PCO), AT LISA tri features an anti-PCO posterior
profile. This reinforces the effect of the square edges for double prevention of PCO formation.
With the addition of AT LISA tri to the ZEISS MICS Platform, Carl Zeiss Meditec continues to provide an even more complete and
innovative range of products for micro incision cataract surgery.
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