The more precisely we want to examine the human retina, the more clearly one of the fundamental limits of physics becomes apparent. In cellular-resolution eye imaging, the same tradeoff has applied for years—tiny structures can be seen with impressive sharpness, but only within a very thin layer of tissue. To view the entire retina, researchers usually have to refocus and acquire several separate scans in a repetitive manner. Now an international team led by Dawid Borycki and Maciej Wojtkowski from ICTER, together with Zhuolin Liu and Daniel X. Hammer from the FDA Center for Devices and Radiological Health (CDRH), has shown that this limitation can be overcome.
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