iVIS Custom, Trans-Epithelial, One-Step, No-touch Ablation

If you are thinking about having Lasik, IntraLasik, PRK, LASEK, Epi-Lasik, RLE, or P-IOL eye surgery, this is the forum to research your concerns or ask your questions.

iVIS Custom, Trans-Epithelial, One-Step, No-touch Ablation

Postby JasonB » Wed Jan 30, 2008 9:34 pm

I just recently heard about this new laser Italian tech, funny thing is i am Italian and now i really wanna investigate where i can find a center here that have this tech :



Custom, Trans-Epithelial, One-Step, No-touch Ablation

Surgeons utilizing the iVIS Suite can choose from a variety of treatment strategies to provide the patient with optimized safety and clinical results. Uniquely, the iRES™ laser can be used with LASIK, LASEK, PRK, femto-second laser LASIK, and a new advanced surface ablation strategy called cTEN™. cTEN, is a one-step, no-touch, all-laser process in which a custom refractive treatment is performed without the discomfort of keratome or laser keratome high level suction on the eye, and with the safety advantages of not creating a flap in the stroma.

Surgeons that have experienced the cTEN difference have rapidly migrated their patients to the cTEN procedure.

I wonder if i should wait before having prk now since this tech seems much more advanced than Lasik and Prk and have better results in term of aberration than wavefornt :

* Wavefront, standard and placido topographic ablations attempt to directly compensate for the refractive error of the eye under the assumption that there is no need to know corneal morphology.

* CIPTA states that the refractive process is the natural consequence of the morphology of the surfaces. The refractive process is generated by the morphology of the surface and not visa-versa!

* CIPTA uniquely uses a synthesis of high definition elevation, refractive, and dynamic pupillometry data.

* Wavefront, standard and placido topographic ablations apply a lens to the cornea to compensate for the refractive error.

* To optimize the patient's quality of vision, CIPTA regularizes the anterior surface of the cornea by means of the identification and location of the ideal shape. The refractive correction is the natural consequence of the corneal regularization.

* Wavefront measurements at best provide data only in the pupil area with no information as to how to best shape an optimized transition zone from the optical correction.

* As the irregularity of the cornea increases, wavefront measurements may become less repeatable or may not be acquired at all.

* Wavefront data may erroneously treat certain conditions exaggerating the original problem (see Strategic Planning in Topography-guided Ablation of Irregular Astigmatism After Refractive Surgery, Aleksander Stojanovik, MD; Dasa Suput, MD. Journal of Refractive Surgery, Vol 21, July/August 2005).


High Resolution, Ultrafast Custom Refractive and Custom Therapeutic Laser

iRES is the first refractive laser system specifically developed to perform customized refractive and therapeutic corneal surgeries. The clinical experience of more than 100,000 custom surgeries is the genesis of the iRES technology. Surgical computer-aided design and planning using the principles of CIPTA™ and CLAT™, integrates the real corneal shape, dynamic pupil assessment, and refractive aberrations to define the ablation profile.

Unique to iVIS, the iRES laser utilizes Constant Frequency per Area™, Variable Width - Constant Slope™ transition zones, and High Definition Delivery™ to implement a new standard of quality for custom refractive and therapeutic applications.

Exclusive to iVIS, the new cTEN™ (custom Trans-Epithelial No-touch) surgical stategy allows the surgeon to select an all laser, no-touch surgery. cTEN eliminates all unmeasured, keratome induced aberations important to maximizing the results for custom refractive surgery.

iRES surgical laser system for custom refractive and custom therapeutic surgeries.

The Technology

iRES eyetracker (iTRK) monitor displays infrared surgical view.

* Industry leading, ultrafast 1,000 Hz.
* High resolution, micrometric 0.6 mm dual gaussian spot laser
* Patent Pending Constant Frequency / Area delivery frequency tuning
* Total processes automation, including machine vision, objective, self-calibration
* High-speed, synchronous eyetracking with dynamic thresholding
* Ocular features registration
* Intra-operative rotational tracking
* Custom refractive planning utilizing CIPTA
* Custom therapeutic planning utilizing CLAT
* "Omega Chamber" sealed environment delivery optics
* Individual surgeon and assistant centric monitors
* Total weight: 258 Kg.
* Power requirements: 230 V/ 6.5 A
* Lasers
o Class 4 laser: ArF 193nm at 250 mj / cm2
o Class 2 laser: red diode 630 - 680 nm; power <1mW
o Class 1 laser: green diode 530 - 540 nm; power < 0.39 m
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