[gutvol-d] Re: Eyestrain (Was Typesetting)

The way people use their eyes, the ways people read, the capabilities of their eyes, and their brains to process information, vary widely, and in ways you cannot imagine unless you personally have run into problems and have noticed that you have them. In the simplest almost universal case people start experiencing eyestrain around age 40 requiring the use of compensating visual orthotics. Age 40 also seems to be about the age of greatest denial ;-)