Governor David Paterson has been diagnosed with acute glaucoma in his left eye, the governor's press office said Tuesday afternoon.

The diagnosis came at around 11:30 a.m. at the Mount Sinai Medical Center on Manhattan's Upper East Side, where Gov. Paterson checked in overnight following a severe migraine.

The Governor is now undergoing iridotomy, a routine outpatient laser procedure to relieve pressure on the eye, according to Paterson's office.

"The operation will not have any long-term impact on the Governor's overall health," the Governor's press office said in a statement. "The Governor will remain conscious throughout the procedure, but in an abundance of caution, the Senate Majority Leader and the Assembly Speaker were advised of this pursuant to standard protocol."