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Researchers Combine Metalens With an Artificial Muscle

Artificial eye automatically stretches to simultaneously focus and correct astigmatism and image shift. Inspired by the human eye, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed an adaptive metalens, that is essentially a flat, electronically controlled artificial eye. The adaptive metalens simultaneously controls for three of the

Retina May Be Sensitive Gauge of Blast-Wave Pressure Injury

Although traumatic brain injury (TBI) is a well-recognized consequence of extreme blast waves, it is less appreciated that over 80 percent of combat veterans with TBI also develop visual problems. A new study reports that blast exposure that does not cause detectable changes in the brain can result in long-term retinal injury. Researchers identified early