The accommodations need to match what the diagnosis indicates is needed. I don’t think an Irlen “diagnosis” would qualify for anything other than accommodations related to use of filters or possible adjustments concerning lighting in the room (if there are available testing rooms with different lighting conditions) – because all the Irlen evaluation does is highlight a visual perceptual issue that seems to be resolved with use of colored filters. The Irlen testing doesn’t provide any information about processing time.
Again, with your daughter’s existing scores I think it would be hard to qualify for added time on the test, but if you want that – the you will need some sort of diagnosis that establishes something that impacts processing time.
The Irlen label establishes a need for some sort of visual assistance materials-- it’s the functional equivalent of someone needing a prescription for corrective lenses, except that she may be using colored overlays rather than specialized lenses.