I dont think you look 'old' I think our perception of age make us think we are old, as well as all the aches and pains.
Call it a look of life experience.
@ Alan,
I remember my Grandfather as he aged, his eyes changes. He had blue eyes, like me, but towards the end of his life I remember his irises has a disctinctly light blue edge on the outer circumference. What causes that ?