The prescription of strabismus patients must follow certain principles in order to ensure the proper treatment of strabismus, both to correct the eye position and to take into account the visual function of both eyes. The prescription of strabismus patients must follow certain principles in order to ensure the normal treatment of strabismus. The principle of prescription for adjusted internal strabismus 1, refractive state for low, moderate hyperopia: can give full degree correction or overcorrected glasses. Generally, the full-degree glasses should not be worn for more than one year, and the overcorrected glasses should not be worn for more than half a year, regardless of whether the eye position is orthotropic after wearing the glasses and whether the strabismus degree changes or not, the glasses should be adjusted to reduce the degree. 2, refractive state for highly hyperopic people: the gradual increase method, first from 4-5.00D ~ +6.00D to start, early 1 month, 3 months to review 1, if the eye position has been corrected to ortho, then no longer increase the glasses degree; if still oblique, then half a year to increase the number of refractive error, until wear to the full degree or nearly full degree, increase the magnitude of each increase to +0.5D ~ 4-1.50D is appropriate. The rate of increase should be +0.5D to 4-1.50D each time. If the eye position has been correct, it is necessary to insist on wearing this number of glasses for 1 year before gradually reducing its prescription. It is appropriate to reduce +1.00D per year; if the eye position is still skewed after wearing the full degree glasses, reduce its degree after 1 year to obtain the best vision of the diopter prescription. 3, refractive state for compound hyperopia astigmatism, priority correction of astigmatism, followed by consideration of the degree of hyperopia, but the sum of hyperopia and astigmatism generally can not exceed +6.00D, and gradually increase the degree of spherical lens. 4, refractive state of myopia, in the regulatory strabismus is less common, the principle of prescription is to obtain the best vision of the lowest degree shall prevail. After wearing glasses for a period of time, the eye position can change, and under the premise of maintaining the ortho-position of both eyes not to recurrence of strabismus, gradually reduce the number of glasses, every six months to a year, each time not more than +1.00D, otherwise the development of the anisotropic fusion reflex will be affected, and a significant reduction in the number of glasses will easily lead to the recurrence of internal strabismus, resulting in blurred vision. In some children, the eye position can be significantly improved with glasses, but the vision with glasses is not as good as the vision without glasses. It is of utmost importance to wear glasses early in the process of regulating internal strabismus, as it can often save the child’s monocular vision, eliminate strabismus, obtain normal development of binocular vision, and avoid surgical correction.