Using gene editing technology to change human sensory function is a complex and challenging field. Here are some potential approaches and considerations: 1. **Target gene identification**: First, key genes related to sensory function need to be identified. For example, genes involved in vision include those responsible for the function of retinal photoreceptor cells, while hearing may involve the function of inner ear hair cells. 2. **Gene editing tools**: CRISPR-Cas9 technology is the most commonly used gene editing tool. It allows precise cutting and modification of DNA sequences to modify or repair target genes. 3. **Function enhancement strategies**: - **Increasing the expression of photosensitive proteins**: Increasing the expression of photosensitive proteins (such as rhodopsin) in rods and cones in the retina through gene editing can theoretically improve visual sensitivity. - **Enhancing hearing-related hair cell function**: By enhancing the expression of key proteins or factors, the performance of inner ear hair cells can be improved, thereby improving hearing sensitivity. 4. **Safety and ethical considerations**: The application of gene editing in humans must undergo comprehensive ethical review and safety testing. Non-therapeutic enhancements are particularly ethically controversial because of the potential for long-term unpredictable effects. 5. **Delivery mechanism**: Gene editing needs to be precisely delivered to the target cells, and currently commonly used methods include viral vector delivery and nanoparticle technology. 6. **Animal models and clinical trials**: Before entering human application, extensive animal experiments must be conducted to verify safety and effectiveness. After that, it may enter the human clinical trial stage. 7. **Individualization and limitations**: Due to differences in individual genomes, gene editing may require personalized treatment. At the same time, the complex interaction between genes and the environment also means uncertainty in the results. At present, although gene editing has shown great potential in medicine, its actual application in the field of sensory enhancement is still in the research and experimental stage. Faced with technical challenges and ethical controversies, it needs to be explored with a cautious and scientific attitude.