Background: The functional results of two different types of multifocal intraocular lenses (based on the diffractive and refractive principle, respectively) were investigated prospectively.
Materials And Methods: Altogether 50 patients who had a multifocal lens implanted were examined 4-6 weeks postoperatively. Visual acuity for distance and near vision, contrast sensitivity, low contrast visual acuity and glare visual acuity were investigated.
Results: Distance visual acuity, contrast sensitivity, low contrast visual acuity and glare visual acuity did not show significantly different results. Near visual acuity was statistically significantly better with the diffractive type of multifocal lens (because of a stronger adjustment for near vision). When the focus depth was tested by defocus curves, both lenses had better results within different areas of defocus.
Conclusions: All patients in both groups showed satisfactory results. When choosing a multifocal intraocular lens, the individual needs of each patient should be taken into consideration.
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