Contact lens, high refractive index, abbe number, hybrid materials, fabrication, enhancement

Abstract

An overview of high Refractive Index (RI), high abbe number (low dispersion) (ν d) and high transmissivity optical plastics improved and used to get a perfect Contact Lens (CL) material and design, this review gathers optical plastics developments to choose the desired polymer in Cls applications. High performance CLs can be made of polymers with high transparency nanocomposites because of the need for optical plastic merits such as light weight, transparency, biocompatibility, the ability to modify its refractive index and Abbe number. Doping with nano-particles can be considered as a good candidate in CLs fabrication due to its rule in increasing the RI, ν d and light transmittance higher. This study shows the evolution of polymer properties used in optical applications and focuses on RI, ν d and transparency of the optical plastics that can be employed in the CLs fabrication or enhancement of them.

Studying the effect of the solvent on the spectral properties of the Eosin-y Dye that used as medical laser medium

“…Laser dyes are important because of their contributions to the fields of science and technology and its applications in the fields of optics, electronics, chem-ical dyes, communication networks as well as sensors [1]. Xanthine dyes are considered one of the most important types of dyes, due to their distinction in the accumulated phenomena and the difference in their spectrum.…”