Key legal question
Which version of Art. 12 IVG applies to cataract operations performed in February 2008 when medical necessity arose in 2007?
Extracted holding
The pre-1 January 2008 version of Art. 12 IVG applies because the insured event occurred in 2007, when treatment became objectively necessary.
Extracted reasoning
For medical measures, the insured event occurs when the disorder first objectively requires treatment or continuous monitoring. The later timing of the operation is irrelevant.