With uniform lens power from center to edge, the Bausch & Lomb SofPort
® Advanced Optics Aspheric Lens is a more "forgiving" optic design that should minimize deterioration of optical performance in the event of lens decentration.
By design, the SofPort AO Lens should always outperform a standard IOL, even when it's decentered and the standard IOL is not — and it should outperform competitive aspheric lenses in conditions where centration of the IOL is compromised.
1
Unlike competitive lenses, the SofPort AO Lens will not induce higher-order aberrations (HOA) when decentered, and will induce less HOA than a lens with positive or negative spherical aberration (SA) when it is tilted.
3
Cumulative statistics from a broad range of independent studies* show mean decentration to be 0.36 mm.
4-21 But true lens decentration of an IOL is probably even greater than is reported when measured relative to the visual axis.
*Inclusion criteria: studies were published in 1994 or later and included at least 3 months of post-op follow-up. Cumulative statistics: mean decentration = 0.36 mm, standard deviation = 0.25 mm, number of eyes = 1,682.