Strong Light for Sore Eyes

Today's primary glaucoma treatment involves application of eye drops-as often as ten times a day-to reduce pressure in the eye caused by blocked drainage canals. But a new company called Solx, based at Boston University's Photonics Center, is developing a high-energy laser that can reduce and even eliminate reliance on daily medications for the estimated three million people with glaucoma in the United States. Solx's infrared laser emits quick pulses of light, producing acoustic shock waves in the eye that physically shake and unclog the drainage canals. "It's like beating a carpet with a tennis racket," says president and CEO Doug Adams. The lasers now used to treat some glaucoma patients emit powerful continuous beams that, as a side effect, burn tissue in the eye. Because this leaves permanent scars, patients can only undergo this procedure once or twice. The Solx treatment leaves no scars and can be performed annually. The company plans to seek regulatory approval of the treatment this spring and expects to launch the product by the end of the summer.

Info-Strainer

Searching a conventional database is like using chopsticks to hunt for gold nuggets in a pile of ore: every pebble must be picked up and examined individually. Engineers at StreamLogic in Los Altos Hills, CA, have invented sifting software that lets informational "ore" pass but captures the gold-alerting users to interesting new content, such as news stories on the Web.

StreamLogic's program monitors constantly changing content sources such as discussion groups, newswires and stock quotes and categorizes their information by topic, according to the frequency of certain words or word pairs. It then strains this categorized content through a mathematical filter; when content matching a preset pattern emerges, the system issues an alert or extracts the data in real time. A Web site on Middle Eastern politics, for example, could watch news feeds for stories containing the words "Arafat," "Sharon" and "intifada"-and then present only those items to the site's visitors.

Uncrossing the Wireless: The U.S. Navy has developed new communications hardware compatible with any wireless system.

Managing communications during the chaos of war or emergency is tough enough without having to juggle a jumble of preset radio frequencies. Scientists at the U.S. Naval Research Laboratory have developed the first piece of communications hardware-called the Joint Combat Information Terminal-whose software programmability lets it interact with wireless systems past, present or future.

The unit simultaneously receives and transmits voice, data and video signals through eight channels that cover the spectrum from two to 512 megahertz. Received signals are converted to digital data that can then be retransmitted on any other frequency. Chris Herndon, who heads tactical-technology development at the lab, says civilian applications could be seen within two years for jobs such as emergency dispatching and crisis management.

Invisible Ink

They're the ultimate in counterfeit protection: fluorescent inks that you can't remove, copy or even see without special equipment. Made by Boston-based startup PhotoSecure, the inks can be applied to cloth, paper, metal, shrink-wrap and more. To increase security, PhotoSecure's readers not only check the color of light that the ink emits but also measure the amount of time it takes the inks to start and stop glowing. PhotoSecure hopes to market the technology to makers of products like clothing, software, pharmaceuticals, cosmetics, electronics and auto parts. Titleist, PhotoSecure's first customer, plans to use the inks to code its golf balls with information such as the identity of a club buying balls in bulk. With PhotoSecure's readers, it can then go into stores and figure out which clubs are reselling the balls at a profit.