While the vision-impaired Hubble Space Telescope needed optical doctoring from shuttle astronauts, vision researchers back on Earth were wondering if the human eye was clever enough to fix itself.
Now a neurobiology study at Cornell University suggests that internal parts of the eye indeed can compensate for less-than-perfect conditions in other parts -- either developmentally (during the lifetime of one individual) or genetically (over many generations).
Results of the study, "Internal compensation for corneal astigmatism and high-order aberrations of the eye," were reported to the fourth International Congress of Wavefront Sensing and Aberration-free Refraction Correction, Feb. 14-16 in San Francisco, by Howard C. Howland, Jennifer E. Kelly and Toshifumi Mihashi. Howland is a Cornell professor of neurobiology and behavior and director of the university’s Developmental Vision Laboratory; Mihashi is the chief scientist at the research institute of the Tokyo-based Topcon Corp., manufacturer of a wavefront analyzer used in the study; and Kelly is a Cornell senior who used the wavefront analyzer as part of her honors thesis by testing the vision of 20 other undergraduate students.
Roger Segelken | Cornell News
Molecular Force Sensors
20.09.2017 | Max-Planck-Institut für Biochemie
Foster tadpoles trigger parental instinct in poison frogs
20.09.2017 | Veterinärmedizinische Universität Wien
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...
For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...
Pathogenic bacteria are becoming resistant to common antibiotics to an ever increasing degree. One of the most difficult germs is Pseudomonas aeruginosa, a...
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