The judgment pronounced by the House of Lords in Page v Smith was that once it is established that a party was under a duty of care to avoid injuring another, it was irrelevant whether or not the injury was physical or psychiatric. All that was relevant was establishing that some kind of injury was forseeable and that, even if the injury was psychiatric only, s/he could recover. Page v Smith involved a primary victim as the party was directly involved in the accident.
(p.s. as a helpful pointer, if you are looking for this information in relation to an essay or assignment or some form of legal writing, the correct spelling is 'judgment' (without an 'e' between the g and m)).