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Optometry and Vision Science: May 2002 - Volume 79 - Issue 5 - p 279-280
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PRIO Introduces Variable Focus Lens for Computer Use

PRIO Corporation introduced a new variable focus lens for computer users at the Vision Expo East on March 15, 2002. The PRIO Browser Computer Lens, designed by Carl Zeiss, is an aspheric variable focus lens optimized for computer and intermediate use. Zeiss has been marketing the German-made product in Europe since 1997 but now has announced PRIO as the exclusive U.S. Distributor of the PRIO Browser Computer Lens. The PRIO Browser has been optimized for near and intermediate vision by special adaptation of the asphere and the base curves. A growing number of optometrists in the U.S. recognize that variable lenses offer significant benefits to computer-using children, young adults, Generation-Xers, baby boomers, and seniors.

Last year, PRIO marketed its first computer lens, the PRIO Computer Lens, and a collection of adult and child computer frames. The PRIO Computer Lens and the PRIO Browser fit together in terms of base curves and power shifts, giving doctors and opticians a full range of computer lens options. The features of the PRIO Browser do not duplicate the Gradal RD indoor progressive sold by Carl Zeiss. Whereas PRIO Browser is specifically designed for computer use, the Gradal RD is suitable for the general office environment and indoor use.

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Zeiss OCT3 Receives FDA Clearance

Carl Zeiss Ophthalmic Systems Inc., Humphrey Division has announced that it has received FDA clearance to market the Optical Coherence Tomographer Model 3000 (OCT3). The OCT3 provides real-time cross-sectional images of the retina that have axial resolution of 10 microns or less. It is also the only device that provides clinicians 3-in-1 capability to directly measure the optic nerve head, retinal nerve fiber layer, and macula. Its resolution and diagnostic flexibility make the OCT3 a unique diagnostic and management tool for glaucoma and retinal disease, while providing a high degree of patient comfort and ease of use.

Optical coherence tomography works analogously to ultrasound, except that it uses light rather than sound, and thereby achieves 10 times better spatial resolutions. The inventors of the technology, Professors James Fujimoto, Eric Swanson, and Carmen Puliafito, MD, have won the 2002 Rank Prize for Opto-Electronics during a ceremony at the Royal Society of Medicine in London on February 25, 2002. The Rank Prize Funds were established in 1972 by the late Lord Rank to encourage a greater understanding of the sciences of nutrition and opto-electrics, two areas the British film pioneer believed would be of special interest to humankind. As determined by a distinguished body of Trustees and Advisory Committee Members, winners are awarded by achievements considered to be of significant benefit to humankind.

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Olympic Visual Training Program Now Available

The Visual Fitness Institute (VFI), one of the only visual evaluation and training centers in the country, has created a CD-ROM featuring the same evaluations and exercises used to train its impressive list of clients, from collegiate and professional athletes to Olympians, for personal use. The client list includes the U.S. luge, bobsled, snowboard, and ski teams, collegiate sports teams at Georgia Tech, as well as the Cleveland Indian and Milwaukee Brewer minor league baseball teams. Physician Barry Seiller’s work has been credited with improved performance and results. In fact, his training with the 1998 U.S. luge team was recognized as an impetus in helping the team to win their first Olympic medals.

The Vizual Edge Visual Performance Trainer CD contains five exercises that help hone key visual skills, including eye alignment, depth perception, eye flexibility, visual recognition, and visual tracking and is the first self-administered vision-performance-training device available to consumers. Dr. Seiller has also launched in conjunction with the CD to help demonstrate how the program works. A visual memory exercise will take visitors through a test to determine their level of skill. For more information, contact VFI at 847-816-3131 or visit

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Punctum Plugs May Improve LASIK Outcomes

Traditional tests for dry eye such as Schirmer strips, test gross quantity of tears, and rose Bengal staining, which test for aqueous deficient dry eyes, do not provide information about the protein quality that reflects the health of the lacrimal gland. Now, CIBA Vision is collaborating with Touch Scientific Inc. of Raleigh, NC, to offer the Touch Tear MicroAssay System. The 10-minute laboratory assay measures the concentration of lactoferrin (Lfn) in the tear film. This is important because preoperative Lfn levels may be an indicator of postoperative LASIK results, providing surgeons the opportunity to enhance surgical outcomes and improve patient comfort through proactive treatment.

In research conducted by Touch Scientific, more than one third of patients with normal test results using traditional dry-eye testing methods had either abnormally low Lfn levels (30%) or abnormally high Lfn levels (5%) using the Touch Tear system. This is important because low levels of preoperative Lfn correlated to LASIK under-corrections, and high levels of the protein correlated with LASIK overcorrections.

CIBA Vision and Touch Scientific want to enable practitioners to improve patient comfort and outcomes of LASIK procedures by proactively using CIBA Vision’s BioInsulated Punctum Plugs, which are used for long-term insertion in the punctal opening to block tear drainage. These plugs are specifically designed to optimize retention, which can meet the demands of the LASIK healing period. In addition, the Hydrograft coating provides a barrier between the delicate eye tissue and the silicone plug material. Each punctum plug is molded from soft, medical-grade silicone and is available in a range of sizes of 0.4, 0.5, 0.6, and 0.8 mm. The design includes a different length shaft and head size from other plugs, minimizing interference with blinking or contact with cornea. Under the agreement, CIBA Vision will market the Touch Tear system in the U.S. through the CIBA Vision Surgical sales representatives.

© 2002 American Academy of Optometry