uDEFINITION: The
adjusting of the lens thickness to focus at
different distances.
lNecessary because can only see clearly one distance at a
time
lGoes
very rapidly
lCloses
can focus in Near Point
lFarthest
can focus is Far Point
lLoose
ability to focus as age - moves towards far point
lIn dark accommodation moves to ~1 meter from face
uAs
fatigue, accommodation moves to this dark focus.