wrb

Hi I have noticed over the past couple of years that my close vision eye sight has deteriorated. I use bifocal lenses for reading on land and was wondering if anyone could suggest the best option underwater. My dilema is this: With a normal lens i can just about see my watch and computer on my wrist, the long distance vision is fine and I can still identify a healthy reef thankgoodness. When I use my housed camera I have great difficulty in seeing the controls or the picutres I have taken. can anybody who has experienced these problems please offer a solution. To my way of thnking I need lenses that allow me to fully operate my housed camera when close to my face, will allow me to read my watch at the end of my arm and enable me to continue to see the dive that I am participating in. All suggestions will be appreciated.