One of the most difficult and worrisome issues for an older adult can be losing one’s eye sight. With the loss of sight, especially at an older age, comes less independence, as well as a sense of isolation. That’s why it is important to understand the early warning signs of glaucoma. By doing so, you can expect better outcomes and keep vision loss to a minimum.  There are several types of glaucoma, but all of them belong to a group of eye diseases that damage the optic nerve. Once.