P.E.I. is falling behind national targets when it comes to wait times for key surgeries.

In 2011-2012, only 46 per cent of Islanders waiting for new knees and 58 per cent requiring hip replacement had their surgery within 26 weeks — the national benchmarks for these procedures.

And 64 per cent of people needing cataract surgery received treatment before the benchmark of 16 weeks.

The target number for all three types of surgeries is 90 per cent.

P.E.I.  is doing about as many surgeries as before, it's just that more people are now on the waiting list, said Pam Trainor, executive director of corporate development and innovation with Health PEI.

"Although our capacity to deliver these surgeries is remaining the same, the number of people requiring surgery is increasing. And that is the same really for all three of those surgeries. So those are associated with an aging population," said Trainor.

Redevelopment of day surgery at the Queen Elizabeth Hospital should improve wait times for cataract surgery by 2014, she said.

Health PEI is trying to schedule more operating room time for hip and knee replacements to improve patient flow so people get in and out of hospital more quickly, said Trainor.