Hyperopic LASIK can improve depth of focus in presbyopic patients

Aspherical hyperopic LASIK can increase depth of focus without affecting distance vision in presbyopic patients, according to a study.The prospective clinical trial compared 76 consecutive patients with spherical hyperopia between +1 D and +2.5 D who were candidates for LASIK. Bilateral hyperopic LASIK surgery was performed. A conventional profile was used on the dominant eye, and an aspheric ablation profile with a target of –0.75 D monovision was used in the nondominant eye.