Photostimulation visual restoration device and photostimulation visual imaging method

Abstract

The invention relates to a photostimulation visual restoration device and a photostimulation visual imaging method. The photostimulation visual restoration device comprises a mirror bracket, an image collection apparatus, an image projection apparatus and a power supply; according to the photostimulation visual restoration device and the photostimulation visual imaging method, the image collection apparatus collects a front view image, converts the front view image into an electric signal, further processes the image and transmits the image to an image display screen, the image display screen emits a special band that can activate photosensitive passage protein, the information of the front view image is displayed on the image display screen, image signals enter eye grounds after passing through a projection lens and focuses on retinas of human eyes after passing through dioptric systems of the human eyes, and the view image is projected on the retinas. The photostimulation visual restoration device solves the problems of eyeball visual accommodation function disorder and projection focusing by means of the cooperation of the image display screen and the projection lens, and can acehive a very good light visual stimulation effect.

Description

technical field [0001] The invention belongs to the technical field of vision restoration, and relates to a light-stimulation vision restoration device and a light-stimulation vision imaging method, which can be applied to vision substitution restoration of vision impairment. Background technique [0002] Vision is the most direct way for humans and most other creatures to receive external information, and vision impairment will bring inconvenience to daily life. Congenital retinal degenerative diseases such as retinitis pigmentosa will cause the death of retinal photoreceptor cells, eventually leading to complete loss of vision. In the case where the retinal photoreceptor cells cannot be cured, there are currently various visual replacement repair methods, including electrode stimulation methods and ultrasound stimulation methods. The electrode stimulation method is to implant microelectrodes on the retina, and control the electrode array to stimulate the ganglion cells of...

AI Technical Summary

Problems solved by technology

The electrode stimulation method is to implant microelectrodes on the retina, and control the electrode array to stimulate the ganglion cells of the retina according to the images collected by the external camera, so as to generate visual signals and achieve the effect of visual replacement. However, because it uses an implanted retinal Contact device, there are certain problems in safety and non-invasiveness

The other method is ultrasonic stimulation, which stimulates the retina by emitting directional ultrasound in vitro, thereby producing vision. The non-implantation method improves non-invasiveness and is free from interference such as lens turbidity, but due to diffraction effects, etc. The resolution of ultrasound is limited, and the structure of the eyeball is complex, the accuracy is greatly affected in the process of ultrasound transmission, which makes the final visual repair effect limited. In addition, the above two methods are not accurate enough for cell specificity and cannot be accurately positioned on specific photoreceptor cells

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