As with many areas of aviation there is a lack of harmonisation due in part to ICAO's lack of legal authority to demand harmonisation and in part to Sovereignty issues.
The practical solution is:
1. Define Visual; part of an IFR appraoch; part of a visual approach procedure (US); part of a VFR approach.
2. Follow the published GA procedure for the type of approach you have just carried out. Remember to revise circling approach MAP if applicable.
3. Make sure you know what you are going to do before you have to do it otherwise you make it hard for yourself and your crew from the time apply GA thrust.
Chok Dee