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Making Contact
on the non-dominant eye. Depending independent of pupil size change surround to allow for the visual
on the lens design, flux density on the and lens decentration, as in the benefits of a rigid lens with the comfort
concentric zones, distance refraction, SEED®1dayPure and the SynergEyes iD of a soft contact lens. The SynergEyes iD
the amount of near correction and the Multifocal EDOF®. MF EDOF® also utilizes higher-order
pupil size with its inherent spherical aberrations to produce an elongated
aberration, the resultant visual The NaturalVue® Multifocal 1 Day depth of focus like the SEED®. There
compromises can manifest as decreased (Visioneering Technology) contact lens is no diagnostic fit set as the lens is
brightness, haloes, ghosting, reduced uses the company’s Neurofocus Optics® empirically ordered and individually
visual acuity and decreased contrast EDOF technology. It is a distance-centre fitted with the following parameters:
sensitivity. lens in a zonal design. It has a small Keratometry readings, HVID and
central optic zone surrounded by large Refraction.
The power distribution across the optic plus-power zones up to +3.00D. This
zone radius in the annular designs is creates a virtual or optical/pinhole There are many options available for
periodic (wide square waves), while, in aperture that allows the visual cortex to correction of presbyopia with soft
the aspheric designs, it is monotonic figure out the plus from the periphery MFCLs. Trying a combination or a
(constant slope). In contrast, EDOF it needs to extend the depth of focus. mixture of the different design
designs intentionally use and manipulate The lens is also good for young patients concepts may be necessary before patients
combinations of several higher-order with accommodation and binocular are happy with their vision correction
aberrations on the front surface of the vision dysfunctions, as well as for solution. The latest EDOF design is
lens to give a unique refractive power myopia control. a valuable tool that can help to fill the
profile that is continuous and rapidly potentially unmet needs of the growing
varying or non-monotonic, non-aspheric, The SynergEyes iD Multifocal EDOF® and under-serviced population of
aperiodic and non-diffractive across (SynergEyes) is a hybrid lens that presbyopic patients who want to see
the optic zone diameter. The resultant combines a rigid gas permeable centre well at varying distances without
increase in the depth of focus is with a precision linear soft SiHy skirt compromising visual performance. l
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