Actress Mary Tyler Moore has reportedly been left nearly blind after battling Type 1 diabetes for several years.

The DICk Van Dyke Show star was diagnosed with the disease over 40 years ago, at the age of 33, and she has had to deal with several health issues because of it.

Now, the 77 year old's friend and former co-star Betty White has revealed her eyesight has worsened and her vision is almost gone.

White tells Closer Weekly magazine, "Her eyesight is what the big problem is right now. (She) is almost beyond the point (of being able to see)."