Background: To evaluate the visual outcomes of conductive keratoplasty (CK) for relief of symptomatic presbyopia of pseudophakia with monofocal intraocular lens (IOL) implantation.
Design: It was a prospective clinical study and set in Eye Center, Second Affiliated Hospital, Zhejiang University.
Participants: This study comprised 27 eyes from 27 patients with presbyopia symptom.
Methods: The patients received CK via monovision approach after monofocal IOL implantation. Patients were followed up at 1 week and 1, 3, 6 and 12 months postoperatively.
Main outchome measures: The main outcomes including uncorrected near visual acuity (UCNVA), uncorrected distance visual acuity (UCDVA), best spectacle-corrected visual acuity (BSCVA), manifest refraction spherical equivalent (MRSE), keratometric astigmatism, contrast and glare sensitivity, spherical aberration, and pseudoaccommodation were evaluated.
Results: Twelve months after CK, the binocular UCNVA was significantly improved from logMAR 0.88 ± 0.16 preoperatively to logMAR 0.30 ± 0.13 (P < 0.05); the binocular UCDVA and BSCVA remained unchanged; MRSE was significantly reduced from 0.01 ± 0.68 Diopter (D) preoperatively to -1.68 ± 0.39 D (P < 0.05); spherical aberration was increased from 0.266 ± 0.204 μm preoperatively to 0.358 ± 0.277 μm (P < 0.05) and pseudoaccommodation was from 1.38 ± 0.38 D to 1.73 ± 0.61 D (P < 0.05 ).
Conclusions: Conductive keratoplasty is a safe and effective method for relief of symptomatic presbyopia of pseudophakia with monofocal IOL implantation.