A key advantage of PRESBYOND Laser Blended Vision is that it is proven to be tolerated by more patients than conventional monovision. It is effective for treating up to 97 %1 of all presbyopia-related forms of impairment as compared to only 59–67 % for conventional monovision. Even presbyopic patients with emmetropia and astigmatism can be treated. In fact, it has the potential to achieve a far greater success rate than any comparable treatment.
A competitive edge
PRESBYOND Laser Blended Vision allows refractive practices already using a MEL® 90 excimer laser and CRS-Master® from Carl Zeiss to significantly expand their LASIK repertoire and increase the patient base. For most patients, a positive effect is that they can read without glasses the very same day. As such, PRESBYOND Laser Blended Vision offers a decisive competitive advantage over LASIK practices only specializing in monovision treatment methods.
By customizing each eye individually, PRESBYOND Laser Blended Vision provides excellent visual acuity for near and distance vision. Unlike conventional monovision methods, PRESBYOND Laser Blended Vision also offers good intermediate vision in the Blend Zone. According to clinical studies, there is virtually no loss of contrast sensitivity and stereoacuity is maintained. Also, side effects such as multiple images in one eye are almost eliminated.
PRESBYOND Laser Blended Vision – is a physiological solution and a true binocular method for treating presbyopic patients.
PRESBYOND Laser Blended Vision – is a proven and effective method for treating indications ranging from -8.0 D to +2.0 D, including emmetropic and astigmatic presbyopic patients (up to 2.0 cyl).
With conventional monovision treatment methods (both surgical and contact lens), the dominant eye is corrected for distance vision to almost plano. The non-dominant eye, on the other hand, is corrected for near vision, usually to be myopic up to -3.0 D. Accommodation is thereby often diminished. The method aims to achieve optimal vision at distance and near range. Following the procedure, the brain must contend with two separate images with different levels of correction. According to scientific studies, only about 60 % of patients are able to successfully merge the two images to experience sharp binocular vision at near and distance range.1 Patients that tolerate the method are left with an uncorrected, compromised gap in the intermediate range, the socalled Blur Zone. In addition to the fuzzy image, it can also cause other side effects such as reduced contrast sensitivity and stereoacuity. Also, it often takes patients a long time to get used to merging the two images into one picture. Conventional monovision is a correction method with compromises. For a number of patients, it is not a suitable option.
PRESBYOND Laser Blended Vision
A new, physiologically optimized laser treatment method for presbyopic patients, PRESBYOND Laser Blended Vision represents the next stage in eye care excellence. Similar to conventional monovision, the dominant eye is corrected for distance vision to almost plano, whereas the non-dominant eye is corrected to be slightly myopic for near vision to -1.5 D. This micro-monovision strategy is further enhanced by a decisive difference: an increase in the depth of field of each eye using a wavefront-optimized ablation profile to create a continuous refractive power gradient for the whole optical zone of the cornea. PRESBYOND Laser Blended Vision is an absolutely individualized treatment plan based on preoperative spherical aberrations and the functional age of the eye. As a result, a customized fusion of the two images for near and distance vision is created for each patient – the so-called Blend Zone.