#ITRACE ORA HOW TO#
How to detect query that cause ORA-1722 (or any other logical/syntax issue)? To check: I turn trace on session like: alter session set events '10046 trace name context forever, level 12'Īnd say to database SELECT TO_NUMBER('asdf') FROM DUAL When poor vision occurs after a premium lens implantation, an undilated scan with the iTrace will bring the root cause to light.There is an application with tons of queries and one of them cause ORA-1722 Since the iTrace is the only device that can accurately scan the complex architecture of a premium IOL, these post-surgical benefits are not exclusive to toric lenses. A surgeon can easily review the estimated benefits of rotating a toric lens with a patient after understanding how much cylinder is likely to change. The iTrace’s wavefront map displays both the axis of the cylinder internally and the corneal steep axis, which is confirmed by topography.īecause ray tracing is the only way to accurately measure through a toric lens, the iTrace is the only device that calculates the predicted post-surgical refraction and automatically suggests any rotation that will optimize the location of a toric lens. The iTrace calculates cross cylinder and verifies whether a toric IOL is off-axis or off-power.Īfter a toric implantation, the lens cylinder power should match the corneal steep axis. Determining the post-operative axis location does not need to be a time-consuming or uncomfortable process. A 30-second iTrace exam evaluates the post-operative alignment of a toric lens without dilating a patient.
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