I am considering trying contacts again after a 17 year absence from
them.  I am age 60 now.  I stopped wearing them when I was in the early
forties because the single vision was not working any longer.

I realize that the whole technology has changed now with disposables,
etc.  I spend my day at a desk with the computer.  I am tired of
looking at the computer with my head cocked back.  I have been wearing
PALs for around 8 years and have never had  trouble with them (except
for computer use).  I am thinking that contacts might be good for work
because I could wear reading glasses over them to see the desk area and
computer well and then just take them off when I need to leave the
desk.  Also contacts would work well for golf and some other
activities.

My prescription is:

right:  sph  -0.50  cyl  -1.00  axis  105
left:   sph  -4.25  cyl - 0.50  axis   105
reading:  +2.50 for both eyes.  The doctor wrote on the prescription to
consult on slab off.

I have never had slab off before.

Could I get use to contacts after so many years away from them?  With
the above prescription, can I use the bifocal contacts?

Would contacts either with bifocal or using  reading glasses enable me
to read better from both eyes at the same time?

Also one question on slab off.  I have read on this board in old posts
that slab off should not be used on PALs.  Is this still true?  I hear
different answers on this one from the opticans.  

Thanks
Bob