A person has far points 8.44cm from the right eye and 12.2cm from the left eye. WRite a presciption for the powers of the corrective lenses.

Please help i tried to read to book and my notes but it doesnt show how to do this problem.

http://www.owlnet.rice.edu/~phys126/Labs/expt04.pdf

I think if I remember correctly, you want fcorrective= -far distance.

Look in the above physics lab, it has a short discussion of it.