Visual Performance after Bilateral Implantation of a Four-Haptic Diffractive Toric Multifocal Intraocular Lens in High Myopes

Figure 4

Mean monocular (squares) and binocular (crosses) contrast sensitivity at different spatial frequencies for the 909M in eyes with a long axial length in the current study and 909M in eyes with an average axial length (monocular) (stars, data from Visser et al. [14]) with a population norm of 20 to 55 years old (monocular) (diamonds, data from VectorVision [38]) and 50 to 75 years old (monocular) (triangles, data from Pomerance and Evans [39] and VectorVision [38]) ( indicates a significant difference in mean monocular contrast sensitivity between eyes with a long axial length implanted with the 909M in the current study and the population norm of 20 to 55 years old (monocular); indicates a significant difference in mean monocular contrast sensitivity between eyes with a long axial length implanted with the 909M in the current study and the population norm of 50 to 75 years old (monocular)).