Assistant Prof. Dr. Mohammad Fawzi Al-Temimi, as a Doctor lecturer in the Laser and Optoelectronics Engineering Department, published a scientific article in universal journal 

Design and assessment of a diffractive aspheric bifocal intraocular lens

Design and assessment of a diffractive aspheric bifocal intraocular lens

This study used an optimal implant diffractive bifocal intraocular lens (IOL) made of a foldable hydro- phobic acrylic polymer. The distinctive optical properties (refractive index of 1.55, abbe number of 41.91) of this poly- mer, the high refractive index of the polymer helps to focus light and increase the ray bending to form a good image, while the low water content of the polymer helps to prevent infections. ZEMAX-EE optical software, which produces results that are closer to the human eye, and a common metrics were used in this evaluation to assess the effective- ness of this IOL, such as the modulation transfer function (MTF), spot diagram and the behaviour of MTF field of view. These measurements were taken within the entrance pupil diameters of 1.5, 3 and 4 mm over a field of view of 20°, 30° and 40°. The results showed that the selected design and lens shape significantly improved and enhanced optical performance.