Word: lensed
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A heavier lens! And now?
...Your story on soft contact lenses [May 31] states that Griffin Laboratories "only last month received Food and Drug Administration approval to begin testing its product." To the contrary, the clinical testing commenced more than 18 months ago when an Investigational New Drug exemption for the Griffin lens was issued by the FDA. Since that date, the Griffin lens has been exhaustively researched and clinically tested by a number of ophthalmologists and optometrists, including some of the country's foremost authorities on corneal pathology. The lens has been used as a moist corneal soft-protective bandage and splint...
Crude Beginnings. In spite of the physical differences, such sensitive radio telescopes operate much like their optical cousins. Instead of gathering ordinary light, they use their big reflectors to capture the radio energy from the invisible part of the electromagnetic spectrum. The curved surface of the antenna acts just like...
...sliver of porous plastic, slightly larger than a regular contact lens, that becomes soft and pliable when it touches the tears of weak-eyed wearers. Because of its agreeable flabbiness, the soft contact lens can be fitted in one sitting, as compared to four for hard contact lenses. Ophthalmologists generally agree that the soft variety is more comfortable and less likely to become scratched or to pop out unexpectedly than the hard kind. There are some 90 million near-and far-sighted Americans, but only 10 million of them wear contact lenses. Millions more have tried contacts, but given them...
...Focus. A few eye doctors find soft lenses potentially dangerous. "The instant and continuous comfort may be the treacherous element in the soft lens," according to Dr. G. Peter Halberg, corresponding secretary of the Contact Lens Association of Ophthalmologists. "If you get hurt by the hard lens, you usually know it immediately." A soft lens, he noted, may mask the warning discomfort of an eye injury. Indeed, Dr. Richard Troutman, surgeon director of the Manhattan Eye, Ear and Throat Hospital, has already seen three "complications" involving experimental soft contact lenses. The patients later required cornea grafts...