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Pulse duration - - the interval of the flash between signal build-up and decay - - is limited so that the signal is not temporarily blinding . That noise is a lullaby compared with the staggering , blinding bellow which rose from the keg . Furthermore most programs for the blind would find it difficult to exert pressure on state government or business - - pressure that can create opportunities for blind clients and pressure that the NFB often brings to bear . Visualization was based on the notion that a newly blinded adult " is a sighted person in his whole physiological make-up , and he will suffer the complete disruption of his ingrained way of learning about and experiencing reality unless he can continue to operate according to such a visual pattern " ( Carroll 1961 , 119-122 ) . While the participants and dentists could not be blinded to treatment assignments , the individuals who analyzed specimens or conducted outcome measures ( i.e ., IQ and neurobehavioral testing ) were blinded . Now as the bombs are falling on Afghanistan , the international community cannot once again blind itself to the impending disastrous humanitarian crisis in Afghanistan . " Pointing out that we all are dependent on technology , Daniels observes that a broken wheel has a similar effect on a nondisabled truck driver , a bus passenger who is blind , and an athlete who uses a wheelchair . While the use of antimetabolites as conjunctival anti-scarring treatments benefits a number of patients , they do so by causing widespread tissue damage and are associated with severe and potentially blinding complications , such as infection . An instrumental part of that effort was a campaign launched this past semester to secure corporate support for the program . It is thought that quasars are located in the central cores of galaxies where matter falling onto a supermassive black hole is turned into a blinding torrent of radiation . He , indeed virtually the entire Democratic field , has superior qualifications to lead this nation than the incumbent , whose record , both as governor and as president , when examined , is damning to all but the most ideologically blinded partisans . The treatments for blinding eye diseases at our disposal today are the result of discoveries made in research laboratories a generation ago . An hour or two , we were kept at this work , when the head-pump was manned , and all the sand washed off the decks and sides . " An article in today 's New York Times features an extensive interview with James Burrows ' 62 , director of the Emmy Award-winning television show Will and Grace . Some professionals in the rehabilitation field do not hold high expectations for their blind clients , but an increasing number do . That should tell just about everybody that Rather was so blinded by his bias and dislike for the Bush family that he did n't care where the fakes came from . Dr. Pearl Van Zandt , executive director of the Nebraska Commission for the Blind and Visually Impaired , says , " In Nebraska we have used the techniques of sleepshades , blind instructors in every area , and structured discovery for thirty years . An overall response rate of 64 percent was achieved .