ESIRIS excimer laser with ORK-CAM software

September 1, 2006

Here, we take a closer look at Schwind's latest unveiling, the ESIRIS excimer laser with the ORK-CAM (ORK-Custom Ablation Manager) software with aspherical aberration-free profiles.

Here, we take a closer look at Schwind's latest unveiling, the ESIRIS excimer laser with the ORK-CAM (ORK-Custom Ablation Manager) software with aspherical aberration-free profiles.

According to the manufacturers, the induction of spherical aberrations during treatment is prevented and/or, in the case of customized treatments, can be optimized. The addition of the new software also takes energy losses as a result of corneal curvatures into consideration, as well as the resulting corneal deformations and biomechanical influences on the treatment.

According to Rainer Wiltfang, MD, the addition of the new custom ablation software to Schwind's excimer laser platform opens new perspectives in the correction of visual imperfections.

Of the 359 eyes enrolled in the study, 133 were assigned to the ORK-CAM group (preoperative spherical equivalence [SEQ] –3.98 D ± 2.14 D) and the remaining 226 eyes received the non-aspheric standard treatment (preoperative SEQ –4.07 D ± 2.16 D). Postoperatively, the investigators noted an SEQ of –0.07 D ± 0.33 D and –0.14 D ± 0.29 D for the ORK-CAM and non-aspheric groups, respectively.

At three months, refractive outcomes revealed a higher level of accuracy for the ORK-CAM treatments, with 88% of eyes achieving a UCVA of 20/20 or better (preoperatively, only 75% of eyes had a BSCVA of 20/20 or better), whilst this was achieved in only 67% of eyes in the comparative group (preoperatively, 84% of eyes had a BSCVA of 20/20 or better).

Contrast sensitivity improvements were also noted in the ORK-CAM group with nearly no induction of other spherical aberrations, while contrast sensitivity decreased in the spherical group.

"Maintaining and not inducing spherical aberration has a clear benefit for the patient," says Dr Wiltfang.

Rainer Wiltfang, MD works at Smileyes Augenklinik Airport in Munich, Germany.

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