Can you believe that Mary Tyler Moore is almost 80-years-old?! The beloved and accomplished actress won over America's heart 55 years ago in The Dick Van Dyke Show, and later went on to star in her very own series.

MUST SEE: Mary Tyler Moore's Battle With Diabetes — Her Famous Friends Speak Out (EXCLUSIVE)

As of late, the actress has been very open about her medical conditions, speaking out about her Type 1 diabetes and diabetic retinopathy, which is causing her to lose her eyesight. But through it all, she's managed to keep a smile on her face.

Click through the gallery to see her transformation over time!