Word: eye
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Dates: during 1990-1999
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...best fringe benefits of being President is getting regular and thorough medical examinations. In George Bush's case, it could prove to be an eye saver. The White House announced last week that his latest checkup had revealed a budding case of glaucoma in his left eye, a disease that can be $ controlled if caught early, but can otherwise lead to blindness. Bush thus joins some 2.5 million other Americans who suffer from this common problem, and his case underscores the value of discovering glaucoma before serious damage is done...
...forms result from accumulation of aqueous humor, a fluid that is generated behind the lens and then flows to the front of the eye, bringing nourishment and washing away waste products. In a normal eye, the humor drains as it is produced, maintaining a constant ebb and flow. But in those with glaucoma, the drainage canals are somehow blocked, leading to an increase in pressure. "Glaucoma is a plumbing problem," says H. Dunbar Hoskins of the San Francisco-based Foundation for Glaucoma Research. If left untreated, the pressure eventually harms the optic nerve. The reason for the buildup...
...wide, umbrella-shape screen that provides the real breakthrough in Solido. When the brain combines the left- and right-eye images in a conventional 3-D movie, it creates by a process known as stereopsis an artificial three-dimensional space that seems to jut out from the screen. As an object in that space approaches the viewer, it becomes larger and larger. If it gets big enough to reach the outer edges of the picture, however, it will appear to snap back to the plane of the screen, sending conflicting depth cues to the brain and destroying...
...Solido system is just the latest in a series of advances in 3-D technologies, from laser-generated holographic images to experimental helmets equipped with tiny TV screens for each eye. There are 3-D video games, 3-D still cameras and double-lens camcorders for people who want to make their own 3-D home videos. One enterprising California firm, 3-D TV of San Raphael, markets a $189.95 "video lunch box" that includes stereoscopic goggles, a 3- D videocassette and a plug-in adapter that permits 3-D movies from the past to be shown on today...
SPACE: A sharp new eye will scan the heavens...