Many cases of blindness are caused by lesions and cones in the retina, which are responsible for converting light into electrical signals. If these photoreceptors do not function properly, even a perfectly healthy eye will not have good vision. At present, some technologies completely bypass the photoreceptor, but the cumbersome technology involved, the result is far from perfect.
Recently, a team from Fudan University in China has proposed a method of replacing photoreceptors with gold/titanium oxide nanowire arrays, which function very similarly to the cells they replace.
The artificial photoreceptor is made of a titanium rod and is covered with gold nanoparticles; it is then implanted into the eye by surgery; the implant converts the light into an electrical signal and transmits the generated electrical signal to the existing Retinal cells.
So far, this technology has been successfully verified in laboratory mice. I hope that the same attempt can be made in the human body in the future, which will benefit millions of blind patients.
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