Related Experiment Video
Updated: Aug 14, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
Published on: September 20, 2024
Conductive keratoplasty for the correction of residual hyperopia after LASIK
Jorge L Alió1, Mohamed I Ramzy, Ahmed Galal
1Instituto Oftalmológico De Alicante, Refractive Surgery and Cornea Department, Miguel Hernández University, Medical School, Alicante, Spain. jlalio@vissum.com
Purpose:
To report the 6-month results concerning efficacy, safety, predictability, and stability of conductive keratoplasty for the correction of residual hyperopia after corneal refractive surgery.
Methods:
A total of 35 eyes (26 patients) with residual hyperopia after corneal refractive surgery ranging between +1.00 to +4.75 diopters (D) of spherical equivalent refraction were enrolled in the study and underwent conductive keratoplasty following a modified nomogram.
Results:
Variables and data were available for all eyes at 6 months postoperatively. A total of 24 (69%) eyes had uncorrected visual acuity (UCVA) of > or = 20/40, and 10 (29%) eyes had UCVA of 20/20. Manifest refractive spherical equivalent was within +/- 0.50 D in 17 (49%) eyes and within +/- 1.00 D in 25 (71%) eyes in cases of previous hyperopic LASIK; the optical zone was significantly increased.
Conclusions:
Using a modified nomogram, conductive keratoplasty for correction of residual hyperopia was effective, but predictability was not satisfactory and safety needs to be established.
Related Concept Videos
Focusing of Light in the Eye
Angle Closure Glaucoma: Treatment

