By comparing the parameters of the two groups of patients with glare at night after refractive surgery and those without glare at night, the influence of preoperative related parameters on postoperative glare was analyzed.

Inclusion criteria：

• Age ≥18 years old；
• Stable diopter (diopter change less than 0.5D in the past 2 years);
• Best corrected distance visual acuity (CDVA) of 1.0 or better；
• Anterior chamber depth (ACD) ≥2.8 mm;
• Corneal endothelial cell density (ECD) ≥ 2 000 cells/mm.

Exclusion criteria:

• History of ocular trauma or surgery;
• Suspected keratoconus;
• Previous history of other ocular diseases such as corneal inflammation or edema, glaucoma, uveitis, retinal detachment, macular degeneration, cataract, amblyopia, etc.;
• History of severe dry eye；
• Patients with systemic diseases, such as hyperthyroidism or autoimmune diseases; or severe mental disorders, such as anxiety and depression.

People undergoing refractive surgery.