If you are losing sight, there are some simple things you can do on your own to improve your ability to see. Don't become discouraged! You will probably need to try out multiple devices before you find one that works for you. These range from magnifiers that are held in the hand or suspended on a stand to devices that attach to your glasses or computers that help you to read.
Many people have received help and can perform normal daily tasks that were impossible without the use of assistive devices. If you need more help than these provide, a visit to a Low Vision Specialist can help you.
This may not necessarily mean that you should increase the lighting or the brightness. Glare is often a problem for people with low vision. You'll need to experiment to see what works best for you. Special lights are available through many catalogs.
Write in large letters with a broad felt tip pen on white or light paper.
Most libraries have a section of these or you can find them online. There are also special libraries for visually impaired.