The dominant eye is the eye that is used frequently. From this perspective, the dominant eye is more prone to myopia because the main cause of myopia is unreasonable eye habits that cause excessive tension in the ciliary muscle of the eye, resulting in abnormal regulation. The dominant eye is more likely to develop myopia because it is used more in normal life. In order to avoid this situation, it is recommended that you must maintain reasonable eye habits in general, try to reduce the use of eyes at close range for long periods of time, control the use of computers, cell phones and other electronic products, and pay attention to maintaining the correct reading distance when reading, the reading light should be moderate, neither too bright, nor too dark. Only by maintaining good habits can we try to avoid the appearance of myopia.