Health Highlights: Sept. 10, 2004 Here are some of the latest health and medical news developments, compiled by editors of HealthDay:    -----      Nightclub Lasers Can Harm Eyes      Nightclub lasers may be a vision hazard, according to the United Kingdom's National Radiological Protection Board (NRPB).      The board said that laser beams are strong enough to cause serious injuries, but often come with inadequate safety information and are used by people with no laser safety experience, BBC News Online reported...