Word: cornea
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Dates: during 1970-1979
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...pictures, with a Chiron machine imposing labels or texts in front of the pictures, and a computer called the Quantel-a marvelous machine that Roone Arledge first used for some of his tricky sports effects-sucking in, widening out or moving around pictures on the screen. "Zapping the cornea," ABC's style has been called. (CBS and NBC have the gadgets too, but don't let them take over.) ABC's impressive technological wizardry, alas, is not matched by a comparable effort to assess the content of the day's news or reflect upon it, though...
...program on the grassy bank of the Charles and glanced smilingly out towards the river, the stage of the events he had come to witness. Suddenly, his look turned from one of quiet contentment to furrowed consternation. Squinting his eyes and pushing his glasses halfway into his cornea, he confirmed his suspicions; "Damned if those aren't women out there rowing with men in the same Harvard boat...
...years ago has emerged a new and highly controversial treatment for helping flawed vision. It is called "orthokeratology." In myopia, images of the outside world do not focus precisely on the retina but rather in front of it, either because the eyeball is too long or because the cornea and lens bend light rays too much. Just as orthodontists use braces to correct the position of crooked teeth, orthokeratologists employ hard contact lenses to alter the curvature of the cornea to improve vision. At least 300 optometrists now specialize in "ortho-k," and tens of thousands of Americans are believed...
...evidence to support some of the claims made for it. The best results seem to be in correcting young myopics. Patients are usually treated with a standard contact lens worn for up to 16 hours a day. Either through pressure or undetermined factors-the cause is still disputed -the cornea does seem to flatten out. After about six weeks the cornea's new curvature is measured, and new contact lenses prescribed, usually with a flatter curve. During the therapy, which can last two years and cost $1,500 and up, the patient may be obliged to wear more than...
...world was totally out of focus. Now I get up in the morning and can see fairly well. It gives me a lot of freedom." Critics do not deny that limited improvements may indeed occur, but they point out that they are at best temporary, and that the cornea will eventually spring back to its old shape. They also worry that the treatment, especially in the hands of less skilled practitioners, can cause permanent astigmatism and other eye damage. Says Ophthalmologist G. Peter Halberg, a specialist in contact lenses at St. Vincent's Hospital in Manhattan: "Properly presented...