The clinical trial is evaluating the TECLens CXLens Crosslinking System, an investigational treatment using ultraviolet (UV) light (375 nm) with riboflavin (vitamin B2) to strengthen and reshape the cornea. By creating controlled biomechanical changes, this study aims to test whether the cornea can be reshaped to reduce refractive errors such as mild myopia or hyperopia in patients of presbyopic age.