Deuteronomy 34:7:

And Moses was an hundred and twenty years old when he died: his eye was not dim, nor his natural force abated.

Notes on Deuteronomy 34:7:

Given that we have a better covenant than Moses did (Hebrews 7:22, Hebrews 8:6), established upon better promises, how much more should we today expect to live in excellent health in old age?  Moses was so strong that God ordered him to go mountain-climbing to die, and Moses did it!

The fact that Moses was 120 when he died proves that his lament over the sorry state of Israel in Psalm 90:10 when they were only living 70-80 years was not a time limit for the rest of us!

Lest you think that this is a unique case, consider Caleb, who was ready to take on giants at the age of 85 (Joshua 14:10-12).

See also:

Don’t Get Sick When You Get Old
How Many Years Should We Expect to Live?
Objection: God Does Not Heal All Because He Didn’t Heal Isaac or Jacob of Bad Eyesight
Condition: Blindness
Condition: Blurred Vision
Condition: Weakness