D diopter
2.From the different constitution of the data, , the diffuse fundus impair was accompanied with myopic diopter over-10D, the age over 40 years old, and the visual acuities are lower than 0.4 ;
3.Methods: BA and stereopsis were examined after PRK/LASIK in 40 patients with myopic anisometropia whose binocular diopter difference(BDD) is larger than 2.50D,the actual test BA and %SD for axial and refractive anisometropia were compared;

