The aim of CXL is to stabilize keratoconus. This treatment alone does not attempt to improve vision. After treatment, you will still need to wear your glasses or contact lenses.nIf your keratoconus has progressed to a point that you have a significant refractive error or corneal scarring, other treatment options may be required to improve your vision. In some cases, this can be combined with CXL. Dr Goh will advise you of the option that is most likely to achieve the best outcome for you.