Vision Restoration by Optogenetic Therapy and Developments Toward Sonogenetic Therapy

Area of Science:

• Neuroscience
• Ophthalmology
• Biomedical Engineering

Background:

• Optogenetic therapy has advanced vision restoration for degenerative eye diseases like retinitis pigmentosa, with ongoing clinical trials.
• Challenges remain in achieving optimal visual acuity and addressing limitations of optogenetics, especially for optic atrophy-related vision loss.
• Light penetration issues in brain tissue hinder optogenetic cortical stimulation for conditions such as glaucoma.

Purpose of the Study:

• To explore alternative strategies for vision restoration beyond optogenetics.
• To investigate the potential of ultrasound-based therapies for sight restoration.
• To propose sonogenetics as a viable method for vision restoration, particularly for optic atrophy.

Main Methods:

• Investigated the use of ultrasound waves for brain tissue penetration, drawing parallels with ultrasound imaging.
• Leveraged recent rodent study results on activating mechanosensitive channels.
• Proposed sonogenetic therapy as a novel approach for vision restoration.

Main Results:

• Ultrasound waves demonstrate effective diffusion through brain tissue, overcoming limitations of light-based therapies.
• Sonogenetic therapy, utilizing mechanosensitive channel activation, shows potential for vision restoration.
• The proposed method offers suitable spatiotemporal resolution for effective neural stimulation.

Conclusions:

• Sonogenetics presents a promising alternative to optogenetics for vision restoration, especially in cases of optic atrophy.
• Ultrasound-based neural stimulation can bypass the optical barriers encountered by optogenetics.
• Genomic approaches, including sonogenetics, could lead to efficient brain-machine interfaces for restoring sight.