ICAO - According to ICAO, an air traffic controller may not assign a visual
approach to an IFR flight, unless the pilot requests such an approach.
Separation services (sometimes reduced) from preceding traffic will still be
provided by ATC, and it remains the controller's responsibility to keep the
aircraft in controlled airspace.
Minima requirements: To request a visual approach in airspace with ICAO rules:
i. The field is in sight and expected to remain in sight for the rest of the
approach (pilot's discretion).
ii. If the field is not in sight: the reported ceiling must be above the initial
approach
altitude and there must be enough visibility to see the runway at that
distance.
Missed Approach: A visual approach in ICAO has no missed approach segment. It is
simply not defined. However, some European airlines suggest that their pilots do the
following missed approach procedure from a visual approach: In ICAO operations
the missed approach from a visual approach is to join the traffic pattern on a left
downwind at 1500 feet AGL (jets and turboprops) or at 1000 feet AGL (piston), not the
instrument (missed) approach procedure you were perhaps planning.
So it seems that we are all wrong because its not even defined it really is just make it up as your going along. Unless anyone has any better info I for one am going to start asking what the missed approach is after accepting a visual.