Letters from the July 1, 2006, issue of Science News

Looking into the future

Your article states that farsightedness will be treated with these new electric lenses (“Switch-a-Vision: Electric spectacles could aid aging eyes,” SN: 4/22/06, p. 243). With some tweaking, could nearsightedness and astigmatism be treated as well? Could binoculars, telescopes, and microscopes use this technology?

Roger Curnow
Grand Rapids, Mich.