Which is better, all-femtosecond or semi-femtosecond?

Nov 12, 2024 Source: Cainiu Health
Dr. Wang Shuai
Introduction
In general, for patients with relatively mild conditions, choosing full femtosecond laser surgery is preferable. For patients with more severe conditions, selecting semi-femtosecond laser surgery is better. Both full femtosecond and semi-femtosecond laser procedures are currently mainstream corneal laser surgical techniques used to correct vision problems such as myopia, hyperopia, and astigmatia. The choice of procedure depends on the individual patient's specific circumstances.

Generally speaking, if a patient's condition is relatively mild, choosing a full femtosecond procedure is preferable. If the patient's condition is more severe, selecting a semi-femtosecond procedure is better. Both full femtosecond and semi-femtosecond procedures are currently mainstream corneal laser surgical techniques used to correct vision problems such as myopia, hyperopia, and astigmatism. The choice of surgery depends on the patient's specific circumstances. Detailed analysis is as follows:

For patients with relatively mild conditions, the full femtosecond procedure is recommended. This is because the full femtosecond procedure uses femtosecond laser throughout the entire surgery. By controlling rapid laser pulses, the cornea is precisely ablated without creating a corneal flap. Additionally, the surgery is minimally invasive, highly precise, causes less trauma, and inflicts minimal damage to the cornea. Recovery after surgery is rapid, with most patients experiencing significant visual improvement within a few days. The long-term results are stable, providing patients with lasting and stable vision correction. The surgical process is painless and non-invasive, offering patients a more comfortable surgical experience.

If a patient's condition is relatively severe, the semi-femtosecond procedure is preferable. This is because the semi-femtosecond procedure uses femtosecond laser to create a corneal flap, followed by excimer laser ablation to adjust the corneal refractive power. It has a broad range of applicability, suitable for patients with myopia ranging from 100 to 1200 degrees. The surgical cost is relatively lower, making it more economical than the full femtosecond procedure. The surgical technique is mature, highly safe, and allows for individualized ablation design.

When choosing a surgical method, patients should fully understand the risks and potential complications of the surgery and communicate thoroughly with their doctors. After surgery, patients should follow medical advice for postoperative care and follow-up visits, closely monitoring any changes in their ocular condition. In daily life, patients should avoid strenuous physical activities and strong light stimulation to prevent affecting the surgical outcomes and recovery.

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