LASIK more accurate than lens-based procedures in correcting residual ametropia
LASIK was found to be the most accurate technique for correcting residual ametropia after cataract surgery; however, lens-based procedures are preferred in cases with severe ametropia, corneal abnormalities or an unavailable excimer laser platform, according to a study.
Sixty-five eyes of 54 patients with unacceptable final refractive error results after phacoemulsification were included in the retrospective, multicenter study.
Eyes were categorized into three groups: 17 eyes had an IOL exchange, 20 eyes had a piggyback lens implanted, and 28 eyes had LASIK.
No differences were found in spherical equivalent, sphere or cylinder between the IOL exchange and piggyback lens groups.
Compared with the IOL exchange group, the LASIK group had a statistically significant reduction in refractive cylinder and spherical equivalent (P = .001 and P < .001, respectively). The LASIK group had a statistically significant reduction in refractive cylinder when compared with the piggyback lens group (P = .002).
The median efficacy values were statistically significant between the IOL exchange and LASIK groups (P = .004) and the piggyback lens and LASIK groups (P = .003).
Regarding predictability, 62.5% of eyes in the IOL exchange group, 85% of eyes in the piggyback lens group and 100% of eyes in the LASIK group were within ±1 D of final spherical equivalent. The differences were significant (P = .003).
Disclosure: The study authors have no relevant financial disclosures.