Currently, the hazards of pseudomyopia are mainly reflected in: 1. The age group of onset has a tendency to shrink year by year, with a shorter onset time and faster vision loss. 2, pseudomyopia is myopia is the pre-myopia stage, is a reversible change in the eye. Timely treatment of the eye can be restored, otherwise, when the eye further develops into true myopia, vision is impossible to restore. The development of pseudomyopia to true myopia is generally 3 to 6 months, which is a critical period for eye care. 3, general myopia is easily ignored by the students themselves and their parents without realizing its potential harm, and if they do not see an ophthalmologist in a timely manner, refractive error (myopia) will be formed.