Innovative design of cont act lens case to reduce microbial contamination / Nurul Asyikin Zohari

The aim of this study is to discover an innovative design of contact lens case in order to reduce microbial contamination. Different ideas and concept of the design was proposed. In situ washing at both lens and closure cap without contacting lens or hand was proposed in Design l and Design 2, as an idea to reduce microbial presence and to improve lens care system. Introduction of cleaning liquid on the lens positioned in the container through tunnels of turbulence flow was proposed in Design 3 and Design 5. The concept of turbulence flow in association with cleaning action on contact lens has been investigated. Cleaning liquid introduced from vertical direction exhibit better cleaning action on the lens in comparison to horizontal, as demonstrated in a simulated case. Among the designs that have been proposed, Design 5 proved the best after modification of the tunnel on closure cap in order to reduce contamination by cleaning action of turbulence flow.