100 degrees of myopia is mild myopia, so this condition is not very serious, but it depends on the age of onset, because this is also very important. If an adult has 100 degrees of myopia, there is basically no problem and no need to wear glasses, just keep reasonable eye habits in general. However, if a minor, especially a child before 8 years old, has 100 degrees of myopia, it should be taken seriously because the development of the eyes is a gradual process, and under normal circumstances, myopia will stop developing only at the age of 18 or so. Therefore, for myopia in minors, it is important to go to a regular hospital early for optometry and vision checkups, and if it has an impact on vision, wear glasses early.