Apparatus for applying laser radiation for medical purposes; apparatus for the application of laser radiation for medical purposes; apparatus for the application of laser radiation for surgical purposes; laser beam delivery apparatus for medical use; laser beam delivery instruments for medical use; laser devices for medical application; laser devices for surgical application; laser instruments for medical use; laser light transmitting apparatus for medical use; laser light treatment apparatus for medical use; laser light treatment instruments for medical use; lasers capable of producing pulsating laser beams for medical use; lasers for medical purposes; lasers for medical use; lasers for ophthalmic purposes; lasers for surgical purposes; lasers for surgical use; lasers for use in surgery; medical apparatus for producing laser polarised light; medical apparatus for producing laser radiation; medical apparatus incorporating lasers; medical instruments incorporating lasers; medical laser apparatus; medical laser beam apparatus; medical lasers; surgical laser beam apparatus; ophthalmic apparatus; ophthalmic instruments; ophthalmological apparatus; ophthalmological instruments; therapeutic instruments for ophthalmology.