Word: straining
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Dates: during 1980-1980
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Each year undergraduates and their families have to dig deeper to meet rising college costs. With this year's increase of more than $1030 some shovels will hit rock bottom. But admissions and financial aid officials are confident most students believe a Harvard education is worth the strain on their wallets...
...classmate Jackie Cunningham came from behind to topple T. Strain, 13-15, 15-10, 15-16, 15-10, 15-13. Corrigan had known her opponent for many years in their home town of Poughkeepsie, N.Y., but the two had never played each other before...
...artificial eye. Though McMahon and Greene are just starting to apply biomechanics to myopia, its potentials alone signify a major advance. The field has long been what Greene calls a "thicket of controversy." No study has conclusively settled the origins of myopia, nor how much heredity or eye-strain is to blame. "Myopia has been associated with everthing from pregnancy to tooth decay," Greene says. Researchers agree only that myopia is the abnormal bulging of the back of the eye or "posterior sclera," usually around the gap for the optic nerve. But no one is sure what causes the swelling...
...McMahon and Greene set to work building a mechanical eye. The model immediately provided two insights. First, strain occurs when the two oblique muscles--the muscles in the back of the eye which control its rotation--are tensed greatly, as in reading. The tension stretches and strains the sclera. Though such stretching is normally elastic, if it is both frequent and extreme enough the sclera does not return to its normal position and myopia develops. Second, the eye is least able to reduce strain near the point where the optic nerve enters the eye--Greene draws an analogy with...
McMahon and Greene have come up with several possible solutions, but have tested none so far. One is the surgical relocation of the oblique muslcles, which Greene claims is a relatively simple operation. Another is to flare surgically the point of attachment of these muscles, dispersing the strain. McMahon and Greene also talk about prescribing prismatic eyeglasses, lenses which dupe the eyes into "thinking" they are focused on a distant point. These solutions remain speculative, but for the 30 to 40 per cent of all Americans who suffer from myopia, hope is in sight...