Vision Aware has an interesting article on Coping with Vision Loss that should be helpful to those who have lost their vision later in life. It explains the stages you go through and ways to get through the process. In addition, it provides links to career information and technology resources that might help you. You can read the article here: Coping with Vision Loss.
The video about Bonnie Truax, which is at the bottom of the same page, is also very helpful. It describes Bonnie's adjustments at age 81, including how she created a support group for others like herself. The support group now has more than 800 members!