This study evaluates the safety and efficacy of a viscoelastic-free method for Implantable Collamer Lens(ICL) implantation to treat high myopia. The subjects undergo randomization of ICL implantation using the viscoelastic-free method on one eye and undergoing standard method on the other one. The post-operative data are collected for analysis.
Documented stable refraction for at least 1 year(within 0.5D)
Best spectacle-corrected visual acuity (BCVA) of 20/40 or better
Clear central cornea
-0.5D to -18.0D of myopic refractive error
Preexisting ocular diseases or conditions other than myopia, evidence of progressive or acute ocular disease
Evidence of connective tissue disease or other systemic diseases that may confound the results of the study;
Narrow angle of anterior chamber
Pregnant, lactating, or planning to become pregnant during the course of the trial