I like intellectually-stimulating careers so construction worker and others along the same line are not really appealing to me. The harsh reality is, I cannot afford to sit in front of the computer for hours straight becasue of my poor eyesight. Therefore, things like working in the IT industry do not really suit me. Could you give me any suggestions for careers that are both challenging and not that eye-demanding? I wonder if there is a job that only requires me to think. Thanks for your help.