Visualization of Light Propagation with Multifocal Intraocular Lenses Using the Ouzo Effect

Figure 10

A comparison of a monofocal lens immersed in a medium containing fluorescein and illuminated with two different wavelengths 405 nm (a) and 532 nm (b). Both images show a green signal because of the green flourescent reaction of the fluorescein. Image (a) is based purely on fluorescence (excitation with 405 yields green emission (see also Figure 11). Image (b) is based on fluorescence and scattering exposing particles in the medium (mixed excitation and emission light). The red arrows indicate the estimated location of the focus: the IOL shows a shorter focal length (higher refractive power) with the short wavelength (a) compared to the medium wavelength (b) (adopted from [28]).