NCT06898164

The Influence of Axial Length on Visual Quality Following SMILE Surgery in Patients with High Myopia

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 113 (actual)
• Sponsor: yuhao shao · Academic / Other
• Sex: All
• Age: 18 Years – 40 Years
• Healthy volunteers: Accepted

Summary

This retrospective study aimed to investigate the subjective and objective visual outcomes following Small Incision Lenticule Extraction (SMILE) surgery in high myopic patients with varying axial lengths (AL).

Detailed description

The study enrolled 113 highly myopic patients (202 eyes) who underwent SMILE surgery at Shanghai's Tenth People's Hospital. Patients were classified into three groups based on the axial length before surgery: Group A (AL \< 26 mm, 62 eyes), Group B (26 mm ≤ AL \< 27 mm, 88 eyes), and Group C (AL ≥ 27 mm, 52 eyes). Preoperative and postoperative evaluations included uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), equivalent spherical error(SE), and corneal high order aberration. Subjective visual quality was assessed using the Quality of Vision (QoV) questionnaire.

Conditions

• Visual Quality
• Axial Length
• High Myopia

Interventions

Type	Name	Description
OTHER	This study does not involve any interventions	This study does not involve any interventions

Timeline

• Start date: 2021-07-01
• Primary completion: 2024-09-01
• Completion: 2024-09-01
• First posted: 2025-03-27
• Last updated: 2025-03-27

Locations

1 site across 1 country: China