Digital soft contact lenses design and validation
- Supervisors: Dr Ahmed Abass Dr Jenny Hanson
Description
Soft contact lenses are medical devices largely used to correct the eye refractive error for more than 125 million people worldwide. Unlike spectacle lenses which are used in conventional glasses, soft contact lenses should be designed to fit the user’s eye beside being able to correct his vision. During the fitting process, the surface of the contact lens deflects to fit the eye shape, therefore, the optical power of the soft lens on-eye differs from the one originally manufactured and tested off-eye.
In this project, the student will design the geometry and select the materials of a range of contact lenses then test their optical power before and after the fitting process. The product design process will be carried out by a MATLAB software code, however, the process of fitting contact lenses to human eyes will be simulated by FE-BIO finite element software where the 3D change in the shape of a contact lens can be monitored and recorded. The student will then use knowledge gained from this exercise to obtain correction factors that can be used to take the deflection of soft contact lenses in account when design contact lenses.
Availability
Open to students worldwide
Funding information
Self-funded project
Student will need to cover their own tuition fees and living expenses.
We understand that budgeting during your research is important, and we want to make sure you understand any project-related costs that are not covered by your tuition fee. This could include buying a laptop, books, or stationery. Find out more about the additional study costs that may apply to this project.
Supervisors
References
Can AI Predict the Magnitude and Direction of Ortho-K Contact Lens Decentration to Limit Induced HOAs and Astigmatism? Lin, W. -P., Wu, L. -Y., Li, W. -K., Lin, W. -R., Wu, R., Abass, A (2024), doi:10.3390/jcm13185420
FEA-Based Stress-Strain Barometers as Forecasters for Corneal Refractive Power Change in Orthokeratology. Wu, L. -Y., Lin, W. -P., Wu, R., White, L., Abass, A. (2024), doi:10.3390/bioengineering11020166
Typical Localised Element-Specific Finite Element Anterior Eye Model.
Towler, J., Consejo, A., Zhou, D., Romano, V., Levis, H., Boote, C., Abass, A. (2023), doi:10.1016/j.heliyon.2023.e13944