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Retinal management technologies: becoming mainstream?
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NEW YORK – An overview of today’s retinal imaging technologies was part of the posterior pole portion of Saturday’s lectures at the PRIMARY CARE OPTOMETRY NEWS symposium here. A presentation by Jerome Sherman, OD and William Jones, OD looked at the roles played by the Stratus OCT, the Optomap and the PreView Preferential Hyperacuity Perimetry (PHP) in the early detection of retinal disease.
Dr. Sherman said the Stratus OCT is especially useful in its dual imaging function. “I consider this the Rolls Royce of retina imaging,” Dr. Sherman said. “It does two things very well: it looks at the surface topography, and it also can take slices. You really get incredible images.”
Dr. Sherman said the Optomap is distinctive in the fact that it allows the practitioner to view the entire fundus at once. He said in order to view the entire fundus with a direct ophthalmoscope, more than 400 linked fields would be necessary, and with an indirect ophthalmoscope, 50 linked fields would be needed.
“You really do get tons of information from this technology,” he said.
A relatively new technology, the PreView PHP is useful in making an early diagnosis of age-related macular degeneration (AMD), Dr. Sherman said.
“In the past, when we could not treat it, it didn’t matter so much whether we detected it early,” Dr. Sherman said. “Now, there are several treatments, and it is our responsibility to detect early.”
The PreView PHP uses a dot deviation signal (hyperacuity pattern) at 160 ms flash duration, according to a Power Point presentation accompanying the lecture. The patient responds to the distortion by touching the location where it was seen. All information is recorded and automatically analyzed by the system.