Full femtosecond surgery is generally contraindicated in terms of patient age, refractive error, localized ocular pathology, and systemic pathology.
1. Patient age: Full femtosecond surgery is generally not recommended for patients under the age of 18 or over the age of 50, but the specifics are related to the patient’s condition.
2. Refractive error: Full femtosecond surgery is not recommended for patients whose refractive error has changed by more than 50 degrees in the past two years, and full femtosecond surgery is not recommended for patients with myopia of more than 1,000 degrees and astigmatism of more than 500 degrees.
3. Local eye lesions: If the patient suffers from severe dry eye, cone cornea or has a tendency to cone cornea, severe corneal lesions, uveitis, fundus lesions, hyperthyroidism protruding eyes, incomplete eyelid closure, etc. or the pupil diameter is large in the darkroom, full femtosecond surgery is generally not recommended, and the postoperative effect is generally poor.
4. Systemic lesions: patients with severe systemic connective tissue or autoimmune diseases, patients with mental anomalies who can not cooperate with the surgical treatment are usually not recommended for full femtosecond surgery.
It is recommended that myopic patients consult a regular hospital in a timely manner to assess their condition and choose the appropriate treatment under the guidance of a doctor.