Nanocomposite Contact Lenses for Tackling Color Vision Deficiency

Abstract

Color vision disorders, commonly referred to as color blindness, present significant challenges in perceiving and distinguishing specific colors, significantly affecting daily activities and quality of life. Various technological solutions, including color-filtering glasses and contact lenses, have been developed to mitigate these challenges. However, achieving personalized and adaptable eyewear for individual patients remains a persistent hurdle. This research endeavors to pioneer advancements in eyewear technology by designing multifunctional contact lenses that synergistically integrate color filtering and pH sensing capabilities for personalized color vision correction. A pH-responsive hydrogel doped with Neutral red dye is meticulously developed and optimized, employing a vat photopolymerization-based 3D printing process. A novel in-house multimaterial 3D printing technique is harnessed to fabricate lenses capable of both color filtering and pH sensing. Notably, the research introduces the concept of the dye used as a nano-enhanced biomaterial, highlighting the convergence of nanotechnology and biomaterials in this innovative approach. The 3D printed lenses, incorporating outer radial rings made from a porous and pH-responsive polymer, demonstrate exceptional potential for tailored color vision correction and pH monitoring of the tear film. The experimental outcomes unequivocally showcase the successful integration of color filtering and pH sensing functionalities within the multifunctional and multimaterial contact lenses. This study illuminates the path toward superior visual experiences and personalized solutions, particularly focusing on individuals with color vision deficiencies, leveraging the potential of nanomaterials in contact lens technology.

Date of Award	8 Dec 2023
Original language	American English
Supervisor	Haider Butt (Supervisor)