# Theoretical possibility of realizing human night vision ability through gene editing This is an interesting theoretical question. Gene editing methods to realize human night vision capabilities may include： ## Possible ways 1. **Genetic modification of rhodopsin**： -Modify the rhodopsin gene in human rod cells to make them more sensitive to weak light -Rhodopsin variants that may be derived from deep-sea fish or nocturnal animals 2. **Introduction of animal vision system genes**： -In theory, retinal-related genes of nocturnal animals such as owls can be introduced -Increase the density of rod cells in the retina and improve the sensitivity to low light 3. **photoreceptor cell transformation**： -Edit the genes that control the structure of the retina to optimize the arrangement of light-receiving cells -Increase the reflective layer (similar to the feline tapetum lucidum) related genes ## Ethics and Practical limitations It should be clear that this kind of gene editing is currently only for theoretical discussion. The actual implementation faces serious technical obstacles, safety risks and ethical issues. At present, human gene editing technology has not yet reached the level of safely achieving such a complex function, and most countries strictly restrict human gene editing research. Non-gene-edited night vision technologies (such as infrared equipment) are a more practical and safer way to obtain night vision capabilities.