It is not possible to directly compare the results of half-femtosecond and full-femtosecond surgeries. It is generally necessary to make a comprehensive judgment based on the myopic condition of the body, postoperative recovery and other aspects, and the one that suits the patient’s own situation is better.
Full femtosecond and half femtosecond are two different types of surgery. Full femtosecond surgery refers to the use of only femtosecond laser to complete the partial lens and corneal cutting during the operation to achieve the purpose of myopia correction. Full femtosecond surgery does not require the creation of a corneal flap during the procedure, therefore it can reduce the damage to the body and eye tissues, and the postoperative recovery is faster. It is generally suitable for patients with lower myopia.
Semi-femtosecond surgery refers to the use of femtosecond laser for corneal flap production during the operation, followed by excimer laser for corneal cutting. It causes relatively more nerve or tissue damage to the body and the eye. However, the semi-femtosecond procedure is more widely available and can be used to treat patients with higher myopia or to correct higher order aberrations that affect night vision.
When making the choice between full femtosecond and hemifemtosecond surgery, you should consult with your doctor for advice on choosing the right surgical option for your specific situation.