Closed-circuit television produces an enlarged image on a television screen. With the added advantage of adjustable magnification and contrast, a closed-circuit television is often easier to use and less fatiguing than other aids. Non-optical aids can be anything that helps you to perform near vision tasks with greater ease. One simple non-optical technique is getting closer to what you want to see. Holding reading material very close to your eyes or sitting as close as one foot from the television screen will not cause eye damage, contrary to popular belief.
Correct lighting is as important as a low vision aid.
With no eye disorder, a 60 year old person may need twice the illumination they needed at 20 to comfortably perform the same task. Remember to place the light source close to your reading material for greatest visibility. High intensity lights with adjustable arms work well for this purpose. Visors and hat brims block annoying overhead light and absorptive lenses are useful in controlling glare. Increasing size as with large print whenever possible is critical.