Philip Larkin - Long Sight In Age

They say eyes clear with age,
As dew clarifies air
To sharpen evenings,
As if time put an edge
Round the last shape of things
To show them there;
The many-levelled trees,
The long soft tides of grass
Wrinkling away the gold
Wind-ridden waves- all these,
They say, come back to focus
As we grow old.

Philip Larkin

http://www.poemhunter.com/poem/long-sight-in-age/