Comparison Of Two Surgical Treatments In Myopic Patients Over 40 Years Old: Implantable Collamer Lens Implantation And The Q Value Customized Femtosecond Laser-Assisted Lasik
Published 2024 - 42nd Congress of the ESCRS
Reference: PP24.15 | Type: Free paper | DOI: 10.82333/7bzz-4a60
Authors: Hongting Liu* 1 , Qingsong Zhang 1 , Xiuli Xie 1 , Qifeng Wang 1 , Mei Feng 1 , Yulin Liu 1 , Xiongzi Liang 1
1Refractive Surgery,Wuhan Aier Eye Hospital affiliated to Wuhan University ,Wuhan ,China
Purpose
To compare the refractive outcomes and visual qualities of the Visian Implantable Collamer Lens (ICL) implantation and Q-value customized femtosecond laser-assisted LASIK (Custom-Q Fs-LASIK) for patients over 40 years old.
Setting
A Prospective Design Study
Methods
This study included 62 eyes of 31 patients who underwent V4c ICL implantation and 68 eyes of 34 patients who received Q-value customized Fs-LASIK. All patients were over 40 years old. The target refraction was plano for distance eyes (dominant eye) and between -0.50 and -1.50 diopters (D) for near eyes (non-dominant eye).
Before and 3 months after surgery, the uncorrected distance visual acuity (UDVA), refraction error, uncorrected near visual acuity(UNVA), the cornea Q value, the total ocular high-order wavefront aberations (HOAs) were accessed in both groups. Intraocular pressure (IOP), endothelial cell density (ECD), vault, and adverse events were also recorded.
Results
Mean preoperative spherical equivalent (SE) was -7.42 ± 1.83D in ICL group and -5.61 ± 1.98D in LASIK Group. Mean postoperative SE refraction of distance eyes was +0.20 ± 0.35D and +0.14 ± 0.42D for ICL group and LASIK group, respectively. Mean postoperative SE refraction of near eyes was -1.21 ± 0.48D and -0.90 ± 0.44D for ICL group and LASIK group, respectively. Mean binocular uncorrected near visual acuity was 0.80 ± 0.27 logMAR in ICL group and 0.70 ± 0.28 logMAR in LASIK group.
In the ICL group, there were no statistical differences in the total HOAs for either 4mm or 6 mm pupil. While in the LASIK group, the HOAs parameters increased significantly from 0.12±0.06 to 0.19±0.07 at 4mm pupil. (Wilcoxon signed ranks test, P<0.05).
Conclusions
Both ICL implantation and LASIK generates good refractive outcomes for patients over 40 years old; however, ICL implantation has a less disturbance to visual quality than custom-Q Fs-LASIK. A long follow-up period is advisable to monitor ICL position relative to the crystalline lens in ICL group.