Risk Factors for Progressive Suction Loss in Corneal Refractive Surgery

Yifeng Yu

Status: Enrolling

Conditions: Refractive Surgery

Study type: Observational

Funder types: Other

Identifiers

NCT06264804

[2023] No. 86

Details and patient eligibility

About

The goal of this Prospective observational studiesis to Characteristics of progressive suction loss.

Full description

The goal of this Prospective observational studiesis to Characteristics of progressive suction loss. The main question[s] it aims to answer are: • Characteristics of people who do not develop progressive aspiration Characteristics of people with progressive aspiration Participants will The differences between the two groups were compared

Enrollment: 800 estimated patients

Sex: All

Ages: 18 to 50 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Age ≥ 18 years;
2. Stable refractive state in the last 2 years, with yearly change in refractive power ≤ 0.50 D;
3. Spherical power ≤ -10.00D, cylindrical power ≤ -3.00 D;
4. Best Corrected Visual Acuity (BCVA) ≥ 16/20;
5. No use of corneal contact lenses two weeks before surgery.

Exclusion criteria

1. Eye diseases or histories beyond myopia and astigmatism, such as keratoconus;
2. Previous eye surgeries or histories of systemic illnesses;
3. Severe mental disorders like generalized anxiety disorder, panic disorder, depression, psychosis, and bipolar disorder, impeding cooperation with the doctor.

Trial design

800 participants in 2 patient groups

progressive suction loss group

Description:

Progressive suction loss occurs during the SMILE procedure

Normal group

Description:

There was no progressive suction during the SMILE procedure