Due to the increasing demand of cataract surgery, the market of intraocular lenses IOLs 
has grown rapidly in the last years. Most of the implanted lenses are monofocal, intended 
to compensate the far vision of the patient. However, there exist another type of IOLs designed 
to provide good vision for both, distance and near objects simultaneously. These lenses which are 
called multifocal IOLs (MIOLs) are a promising alternative to presbyopic patients 
(people above 50 years old). At market there exist several models and designs of MIOLs, 
each one with its own drawbacks and advantages, proving that the optimum MIOL has not yet designed.

In this Thesis, the results of design, manufacturing, and quality control of a new design of MIOL 
with a fractal profile are presented. This type of lenses provides an extended depth of field and 
a reduced chromatic aberration compared with those commercially available at present. To assess 
the optical quality of MIOLs, two different experimental setups were designed; according to the 
requirements of the UNE ISO 11979-2 standard. The optical quality the new designs, measured with 
these setups, compare favorably with those corresponding to commercial MIOLs. Additionally, in 
this work, new subjective measurements of the optical quality in real eyes are proposed that 
potentially useful in MIOLs implanted patients, after cataract surgery.