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Lens implant may be better option in low to moderate myopia
Implantation of an implantable Collamer lens resulted in significantly fewer higher-order aberrations compared with wavefront-guided LASIK for the correction of low to moderate myopia.
A retrospective observational case study compared postoperative visual function in patients who underwent the two procedures; 30 eyes of 20 patients with a mean age of 30.9 years underwent Visian ICL (STAAR) implantation, and 64 eyes of 38 patients with a mean age of 31.9 years underwent wavefront-guided LASIK to correct low to moderate myopia. Higher-order aberrations and contrast sensitivity function were measured before surgery and 3 months after surgery.
After ICL implantation, changes in ocular third-order aberrations, fourth-order aberrations and total higher-order aberrations were less than after wavefront-guided LASIK (P < .05) among those with 4-mm and 6-mm pupils. Further, area under the log contrast sensitivity function did not change after wavefront-guided LASIK but increased after ICL implantation (P < .001).
“ICL implantation appears to be superior to wavefront-guided LASIK in visual performance even in the correction of low to moderate myopia, suggesting that ICL implantation may be a better surgical approach than wavefront-guided LASIK for the treatment of such eyes,” the study authors said.