Given figure is the MTF of Aspheric IOLs and standard spherical
IOL (for comparison), 22.0 D, In ISO Modified" eye model. Pupil size is
4.5mm, IOLs perfectly centered
MTF comparison of various IOLS
MTF of 1.0mm decentered auroflexEV
MTF of 10° Tilted auroflexEV
Contrast sensitivity through lens is inversely proportional
to the Longitudinal Spherical Aberration (LSA)
Standard Spherical IOL adds to existing positive spherical
aberration of cornea reducing the contrast sensitivity and functional vision.
Zero Spherical aberration IOL does not add to the existing
positive spherical aberration of cornea, but higher order aberrations are not
addressed.
Negative Spherical aberration IOL (Auroflex EV) compensates
the positive spherical aberration of cornea, thereby enhancing functional vision
under low light conditions.
Truedge Technology
360° posterior square edge with 0.1mm projection at optic -
haptic junction
