Laser correction refers to the purpose of correcting vision by permanently changing the curvature of the cornea by the laser. Recently, researchers at Columbia University in the United States have developed a new technology to correct vision by adjusting the shape of the cornea with a low-energy laser.
Currently, a common procedure for correcting vision is to burn the cornea with a laser pointer to change the refractive power of the cornea by "grinding." The new technology uses lower laser energy and does not produce a cauterizing effect, but it can cause a series of reactions inside the cornea, which promotes cross-linking between collagen fibers, changes the mechanical properties of the corresponding parts, and then affects the overall structure of the cornea.
The researchers said that the new technology works well in the initial trials, plans to conduct clinical trials during the year, and optimize the algorithm to accurately predict the extent of laser-induced corneal deformation, in order to carry out personalized treatment.
The 3D scanning measurement and control technology is an efficient, fully automatic and high-precision mapping technology that uses the laser pointer scanning system to acquire 3D data of the target surface quickly, automatically and in real time. It is considered as one of the important technologies for the acquisition of basic data in the era of big data.
Near the flood season, the technicians at the Panxi Branch of the Sichuan Academy of Sciences were more busy. They used a three-dimensional scanner to scan the mines in Miyi County, Panzhihua City, Sichuan Province, to identify and eliminate safety hazards in advance.
The data collected by the high-resolution satellite remote sensing, three-dimensional laser pointer scanning, Beidou real-time monitoring and other measurement and control technologies are processed centrally and intelligently, and combined with risk identification and informational early warning technologies to achieve mines and dangers. Full life cycle monitoring and early warning management of major risk sources in areas such as hydropower. Now, hidden and systematic risks become clear at the 3D scanning and control.