Vision 4.4 myopia is in the range of about 200-250 degrees, if the compensatory capacity of myopic patients, the degree of myopia may reach about 300 degrees, if the compensatory capacity of poor patients, the degree of myopia may be about 150 degrees, it is possible to make the vision decline to such a degree. Regardless of the degree of myopia, this degree of vision is not ideal, especially in children, the need for myopia glasses to correct vision, otherwise it will not be able to see the blackboard, affecting learning, may also deepen the probability of myopia growth. If you are an adult, you can use glasses according to your own needs, if you usually use more computers and feel that your vision is sufficient, you can start without glasses. If it is usually driving or watching a movie when you can not see clearly, you can choose to wear a pair of myopic glasses, even when there is a need to wear them.