1. Longitudinal Evaluation of Posterior Corneal Elevation after Laser Refractive Surgery Using Swept-Source Optical Coherence Tomography

    Longitudinal Evaluation of Posterior Corneal Elevation after Laser Refractive Surgery Using Swept-Source Optical Coherence Tomography

    Purpose To investigate the change in posterior corneal elevation up to 1 year after myopic femtosecond-assisted LASIK and photorefractive keratectomy (PRK). Design Prospective, longitudinal, comparative study. Participants Patients undergoing femtosecond-assisted LASIK or PRK. Methods Corneal imaging was performed using swept-source optical coherence tomography at baseline and at each postoperative follow-up. A 2-way analysis of variance model with repeated measures and a linear mixed effect model were used to compare the differences in posterior corneal elevation between LASIK and PRK at different points after adjusting for the preoperative spherical equivalent (SEQ), central corneal thickness (CCT), thinnest corneal thickness (TCT), residual bed ...

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