Release date: 2010-11-15 Source: Kexun Agricultural Planter,Precision Planter,Maize Precision Planter,Pneumatic Precision Planter Shandong Dahua Machinery Co.,Ltd , https://www.agrodahua.com
According to a study by the Royal Society of Associations, Series B, a research team in Germany developed a retinal graft, and three blind people who received the transplant saw shapes and objects in a few days.
One of the blind people can even identify and find objects placed on the front table. They can also walk around the room (freely), approach other people, see the clock hands (read the specific time) and distinguish the seven gray levels. Developed by Retinal Implant AG and the Institute of Ophthalmology at the University of Tübingen, Germany, the device represents an unprecedented advancement in electronic visual prostheses and ultimately hopes to bring 200,000 retinitis worldwide. The life of people who are blinded by pigmentosa, a degenerative eye disease, has undergone earth-shaking changes.
In patients suffering from this eye disease, the photoreceptors in their eyes stop functioning. Professor Eberhart Zrenner (Ph.D., founder and head of Retinal Implant AG, Dean and Chairman of the University of Tübingen Eye Hospital) pointed out in the paper of the Royal Society of Associations? B: "This preliminary study The results provide us with strong evidence that the visual function of patients blinded by hereditary retinal dystrophy can in principle be restored to a level sufficient to support daily life."
The device, the outer retinal implant device, is placed under the retina at the time of transplantation and can directly replace photoreceptors lost due to retinal degeneration. In this way, the device takes advantage of the natural image processing capabilities of the eye (without having to go through the light detection phase) to give the patient a stable visual impression and to track the movement of the eye.
Other types of retinal repair (technique), ie epiretinal implants, are placed outside the retina, and because they bypass the undamaged photosensitive structure in the eye, the patient is required to wear an external imaging device and processing unit.
The outer retinal repair described in this paper achieves unprecedented clarity because the device has many more photoreceptors than other similar devices. As Professor Zrenner (Ph.D.) claims: “The current study... represents proof of concept, that is, this device can restore the visual significance of blind subjects, despite the ultimate goal of large-scale clinical applications. It takes time to research and develop."