Optimum Filtration Range - Balanced Photoprotection of UVA and Violet Spectrum
AcrivaUD BB provides excellent photoprotection from potential damage of the UVA and violet spectrum without blocking blue light. AcrivaUD BB ensures 95% blue light transmission at 480nm which is known as critical in controlling the circadian rhythm
The choromophore used in AcrivaUD BB material is the same chromophore as in the human natural lens which gives similar transmission structure as a young human lens.
Importance of Blue Light
Blue light plays a crucial role in controlling the circadian rhythm and endogenous melatonin secretion. Disorganisation of the circadian rhythm is more common in older adults and people with insomnia, depression and dementia. Blue-blocking IOLs which contain synthetic dye ﬁlter up to 500 nm causes excessive ﬁltering of blue light.
Natural Chromophore - Same Transmission Properties than Natural Lens
AcrivaUD BB contains 3-hydroxykynurenine which is exactly the same as in our natural lens.
Chromophore structure of AcrivaUD possesses the same transmission as a human natural crystalline lens with a good protection of the macula against UV-A and blue light thanks to the absorption curve which mimics the human crystalline lens, preserving the natural color perception and contrast sensitivity.
Ideal Concentration - Improved Contrast Sensitivity
AcrivaUD BB’s chromophore concentration is 0,02%. It has a clearer color in comparison to IOLs with higher concentrations of chromophores. Low concentration of AcrivaUD BB doesn’t inﬂuence color perception of the patient. Natural chromophore and its lower concentration provide a higher contrast sensitivity under low light condition.
Abbe Number of AcrivaUD is 58, one of the highest numbers in the IOL market, measured by independent laboratory. Superior chromatic aberration control in all AcrivaUD lines.
The Importance of Abbe Number
Chromatic aberration is type of distortion in optical system formed by different wavelengths of light to have different focal points. The higher the Abbe number is the lower the chromatic dispersion is.
Best of Both Worlds!
Excellent material combination of 2-Oxiethylmethacrylate and 2-Hydroxymethacrylate monomers creates hydrophobic surface behavior with the advantage of hydrophilic flexibility.
Proven Hydrophobic Surface Behavior
AcrivaUD has similar contact angle measurements similar to pure hydrophobic IOLs. An independent comparative study showed that the hydrophobic surface of AcrivaUD is similar to that of pure hydrophobic competitors.
Benefits of Hydrophobic and Hydrophilic Monomers
The elastic co-polymer of AcrivaUD has precise memory. Point Spread Function (PSF) shows that the optic quickly recovers its initial shape within one hour, much quicker than hydrophobic IOLs.
Better Visual Quality
The MTF of all AcrivaUD lenses is checked one by one and value is always above international standards limits. AcrivaUD products demonstrates superior MTF and smooth surface topography, thanks to our innovative optic engineering.
Modular Transfer Function
MTF is a direct and quantitative measurement of optic system quality. The best result through obstacles is 0.7 at 100 lpm. According to international standards the MTF result at an IOL must be above 0.43 at 100 lpm3.
VSY Biotechnology has determined its own quality control limits far stricter than international standards.
Real PCO Barrier
The innovative edge design tends to greatly reduce PCO risk by forming a geometric and mechanical barrier against cells proliferation. The edge design produces thinner lenses for equivalent power than competitors.
All Square 360° enhance edge and premium material form a dual barrier against the risk of posterior capsule opacification after implantation. Recent studies have shown that square edge on posterior surface of the optic is the most important IOL-related factor against PCO formation.
Advanced Vision of Aspheric Design
Ultra Definition optic design corrects spherical aberrations coming from both cornea and IOL. However, AcrivaUD IOLs have a slight negative asphericity, which maintains part of the positive aberration of the cornea, helping patient to keep better depth of focus.
Advantage of Ultra Definition Design
- Improved contrast sensitivity under low light condition
- Preserved depth of focus
- Less sensitive to decentration
AcrivaUD has a full range of diopters from -20.00D to +45.00D, in 0.50D increments.
Special production is from -20.00D to 0.0D and from +32.00D to +45.00D in 0.50D increments.