If this doesn't work, then we can explore other alternatives and find the right solution. They are desktop or portable. The cctv is selected according to the individual's job requirements and visual needs. For example, an employee who travels doing audits may require a light weight portable unit, while someone who works at a workstation everyday would use the desktop model. Magnification applications are available as software, hardware, can magnify only or contain some speech output capability.
Ergonomic solutions are varied also.
An individual using a computer monitor and needing to look closely, would require a monitor extension so the monitor could be brought closer to his face, eliminating the need to strain the neck and back by leaning into the monitor. However, the size of the monitor is important as one does not want to have to constantly move back and forth looking from side to side causing additional neck and shoulder strain. A 21 inch monitor is the biggest recommended. Use of large letter keyboard labels eliminates the need to hunch down into the keyboard to see the characters on the keys. Those who are not touch typists will attempt to see the keys at a heavy ergonomic cost.