A method, computer program product, and visual display apparatus include a processor(s) obtaining data indicating that a user wearing the apparatus (which included an image capture device, and a projection device, communicatively coupled to the processor(s)), perceives displayed text with consistent character differences. The processor(s) obtains, from the image capture device, an image of a visual display within a visual range of the image capture device; the image includes textual elements. Based on the data, the processor(s) transforms the image into the new image that includes the textual elements with pre-defined character substitutions, based on the consistent character differences. The processor(s) displays, via the projection device, the new image, to the user, wherein based on viewing the new image, the user views the textual elements without the consistent character differences.