Purpose: To investigate the post‐operative refractive stabilisation time and provide evidence for the optimal timing of a spectacle prescription in myopic post‐cataract surgery patients. Methods: A total of 116 consecutive myopic cataract patients were recruited from the Zhongshan Ophthalmic Center in this prospective study. Post‐operative subjective refraction was assessed after 1 week and 1 month (4–6 weeks), with the interval for the new spectacle acquisition being recorded. Visual Function Index‐14 (VF‐14) questionnaires were used to assess the vision‐related quality of life. Results: There was no significant difference in spherical (p = 0.33), cylindrical (p = 0.65) or spherical equivalent refractions (p = 0.45) obtained 1 week and 1 month post‐operatively, indicating that subjects achieved refractive stability within 1 week. In subgroups having differing age and axial lengths, there were also no significant differences between the 1 week and 1 month findings. The spherical equivalent refractive shift between 1 week and 1 month was significantly correlated with the post‐operative prediction error (R = 0.35; p < 0.001). Only five (4.3%) out of 116 patients obtained new spectacles 1 week post‐surgery. The VF‐14 values improved from 85.77 ± 7.24 to 90.45 ± 5.39 after acquiring new spectacles (p < 0.01). Conclusions: The stabilisation of subjective refraction occurred within 1 week in myopic cataract patients. Shortening the interval before prescribing a new spectacle prescription is recommended for myopic patients following cataract surgery to improve their vision‐related quality of life. [ABSTRACT FROM AUTHOR]