No, you cannot train your eyes to not need glasses. The need for glasses is typically a result of an underlying eye condition, such as nearsightedness or farsightedness. These conditions are usually caused by a refractive error in the eye, which causes light to be focused incorrectly on the retina. This affects the clarity of vision, and glasses are needed to correct it.
Some research suggests that certain activities, such as eye exercises, may help to improve vision in people with certain conditions such as astigmatism or presbyopia. However, there is no evidence that these activities can completely correct refractive errors or eliminate the need for glasses.
In some cases, surgery may be an option to improve vision. Refractive surgery, such as lasik, can be used to correct refractive errors and reduce the need for glasses. However, this is not a permanent solution, as the refractive error can recur over time.
In conclusion, it is not possible to train your eyes to not need glasses. However, certain corrective measures, such as eye exercises and refractive surgery, may be able to improve vision and reduce the need for glasses.