Word: lensed
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Dates: during 1950-1959
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Today's featherweight plastic contact lenses are invaluable to many nearsighted and farsighted people. But those who need bifocal correction still cannot use them. Reason: it is useless to place a reading prescription in the bottom of a contact lens because the tiny plastic disk, resting in a shallow bath of tears, rotates once or twice a minute...
...Foundation announced an ingenious solution: a bifocal contact lens with the distant-vision prescription in the center, enclosed by a surrounding area that corrects for closeup reading. Rotation therefore makes no difference. Wesley, who tried the first pair on himself, reports that 65 people who have worn the new lenses for as long as five months are enthusiastic. If they look straight ahead with eyes wide open, they see through the center lens. When they look down, the contact lens rises, so that they see through the outer circle. As they look up again, a blink slips the lens back...
You commented in the March 3 issue upon my recent lecture analyzing the various ways in which eye diseases might affect an artist's use of form and color. As your readers have pointed out, the primary objection to any such mechanistic explanation is that, however distorted the individual...
Automatic Cameras. To spur recession-minded buyers, Bell & Howell brought out nine new camera products months ahead of schedule. Items: the 8-mm. Auto Load, a home movie projector that automatically threads the film; four cheaper ($99.95 to $159.95) versions of two previous "electric eye" 8-mm. movie cameras, which...
Zoom Lens. Bell & Howell put on sale a new zoom-lens attachment for 16-mm. home movie cameras with which the camera buff can change focal length from wide-angle to normal to telescope with the turn of a handle, enabling him to keep right on shooting while switching from...