Optical devices have vocational and recreational applications that expand opportunities to use print. I strongly believe there are increases in literacy skills, e.g., increases in reading speeds with practice with optical devices - over reading speeds using large type. Data is becoming available on this topic of reading speeds 13. Optical devices allow some students to sit anywhere in a classroom or auditorium and be able to see. Optical devices provide visual independence.
Optical devices are less costly than large print and most are very portable.
Optical devices allow some people with low vision to drive - in states where bioptic telescopic systems are permitted by law. Schools have already indicated they should provide access to texts, why limit it there and not provide access to non text materials and to information provided to students on chalkboards 20. Large type creates a visually restrictive environment if that is the sole approach to reading that is provided. With hand held optical devices, more eye movements can be used rather than head movements. These are all I can provide at this time.