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

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

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.

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