scholarly journals Effect of Previous Myopic Laser In Situ Keratomileusis on Contrast Sensitivity After Diffractive Multifocal Intraocular Lens Implantations

2016 ◽  
Vol 07 (02) ◽  
Author(s):  
Hiroko Bissen-Miyajima ◽  
Keiichiro Minami
Keyword(s):  
Contrast Sensitivity ◽  
Intraocular Lens ◽  
Laser In Situ Keratomileusis ◽  
Multifocal Intraocular Lens

scholarly journals Visual Outcomes, Quality of Vision, and Quality of Life of Diffractive Multifocal Intraocular Lens Implantation after Myopic Laser In Situ Keratomileusis: A Prospective, Observational Case Series

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
John S. M. Chang ◽  
Jack C. M. Ng ◽  
Vincent K. C. Chan ◽  
Antony K. P. Law
Keyword(s):  
Quality Of Life ◽  
Contrast Sensitivity ◽  
Intraocular Lens ◽  
Case Series ◽  
Visual Performance ◽  
Laser In Situ Keratomileusis ◽  
Life Questionnaire ◽  
Multifocal Intraocular Lens

Purpose. To report visual performance and quality of life after implantation of a bifocal diffractive multifocal intraocular lens (MIOL) in postmyopic laser in situ keratomileusis (LASIK) patients.Methods. Prospective, observational case series. Patients with prior myopic LASIK who had implantation of Tecnis ZMA00/ZMB00 MIOL (Abbott Medical Optics) at Hong Kong Sanatorium and Hospital were included. Postoperative examinations included monocular and binocular distance, intermediate and near visual acuity (VA), and contrast sensitivity; visual symptoms (0–5); satisfaction (1–5); spectacle independence rate; and quality of life.Results. Twenty-three patients (27 eyes) were included. No intraoperative complications developed. Mean monocular uncorrected VA at distance, intermediate, and near were0.13±0.15(standard deviation),0.22±0.15, and0.16±0.15, respectively. Corresponding mean values for binocular uncorrected VA were0.00±0.10,0.08±0.13, and0.13±0.10, respectively. No eyes lost >1 line of corrected distance VA. Contrast sensitivity at different spatial frequencies between operated and unoperated eyes did not differ significantly (allP>0.05). Mean score for halos, night glare, starbursts, and satisfaction were1.46±1.62,1.85±1.69,0.78±1.31, and3.50±1.02, respectively. Eighteen patients (78%) reported complete spectacle independence. Mean composite score of the quality-of-life questionnaire was90.31±8.50out of 100.Conclusions. Implantation of the MIOL after myopic LASIK was safe and achieved good visual performance.

Bioptics for high hyperopia with combined multifocal intraocular lens implantation and excimer ablation in young patients

2018 ◽  
Vol 29 (4) ◽  
pp. 426-430 ◽  
Author(s):  
Omer Trivizki ◽  
David Smadja ◽  
Michael Mimouni ◽  
Samuel Levinger ◽  
Eliya Levinger
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Laser In Situ Keratomileusis ◽  
Intraocular Lens Implantation ◽  
Multifocal Intraocular Lens ◽  
Distance Visual Acuity ◽  
Lens Implantation ◽  
Near Visual Acuity ◽  
High Hyperopia

Purpose:To analyze the visual and refractive outcome of the bioptics procedure combining multifocal intraocular lens implantation and excimer laser surgery in young patients with high hyperopic eyes not suitable for a single surgical procedure.Methods:This retrospective case series included 10 eyes of five patients (age range 18–30 years) with high hyperopia (spherical equivalent +8.51 ± 0.85 diopters (D)). They had been treated with serial multifocal intraocular lens implantation followed 6 weeks later by laser in situ keratomileusis for residual hyperopia. Uncorrected distance visual acuity, uncorrected near visual acuity, corrected distance visual acuity, corrected near visual acuity, and manifest refraction were evaluated before surgeries, after multifocal intraocular lens implantation, and 3 months post laser in situ keratomileusis.Results:No patients were lost to follow-up (6 months). The mean spherical equivalent decreased to +2.05 ± 1.33 D after multifocal intraocular lens implantation and to −0.10 ± 0.58 D after the laser in situ keratomileusis procedure. Success of the procedures was determined by uncorrected visual acuity. LogMAR uncorrected distance visual acuity improved by a total of more than six lines from 1.05 ± 0.18 LogMAR to 0.46 ± 0.12 LogMAR post multifocal intraocular lens implantation and to 0.15 ± 0.06 LogMAR after both surgeries. The LogMAR uncorrected near visual acuity increased by 0.81 ± 0.82 LogMAR after lens implantation due to loss of accommodation, and all eyes reached a LogMAR of 0 at 1 month postoperatively following laser in situ keratomileusis.Conclusions:A bioptics approach involving multifocal intraocular lens followed 6 weeks later by a laser in situ keratomileusis procedure for the correction of very high hyperopia enabled the resolution of the residual refractive error in young very high hyperopic patients.

Multifocal intraocular lens after hyperopic laser in situ keratomileusis

2018 ◽  
Vol 44 (10) ◽  
pp. 1298-1299 ◽  
Author(s):  
Juan Gros-Otero ◽  
Montserrat Garcia-Gonzalez ◽  
Miguel Teus
Keyword(s):  
Intraocular Lens ◽  
Laser In Situ Keratomileusis ◽  
Multifocal Intraocular Lens

Contrast Sensitivity and Laser In Situ Keratomileusis

2003 ◽  
Vol 43 (2) ◽  
pp. 93-100 ◽  
Author(s):  
Richard S. Hoffman ◽  
Mark Packer ◽  
I. Howard Fine
Keyword(s):  
Contrast Sensitivity ◽  
Laser In Situ Keratomileusis

Relationship of corneal asphericity to intraocular lens power calculations after myopic laser in situ keratomileusis

2016 ◽  
Vol 42 (5) ◽  
pp. 703-709 ◽  
Author(s):  
Yosai Mori ◽  
Kimiya Shimizu ◽  
Keiichiro Minami ◽  
Kazutaka Kamiya ◽  
Nobuyuki Shoji ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Laser In Situ Keratomileusis ◽  
Power Calculations ◽  
Intraocular Lens Power ◽  
Corneal Asphericity ◽  
Lens Power ◽  
Relationship Of

scholarly journals A comparative study on early vision quality after implantation of refractive segmental and diffractive multifocal intraocular lens

2020 ◽  
Vol 36 (7) ◽  
Author(s):  
Huifang Lian ◽  
Weisong Ma ◽  
Qiuhong Wei ◽  
Xiaoyong Yuan
Keyword(s):  
Patient Satisfaction ◽  
Contrast Sensitivity ◽  
Intraocular Lens ◽  
Visual Disturbance ◽  
Early Vision ◽  
Multifocal Intraocular Lens ◽  
Spatial Frequencies ◽  
High Order Aberration ◽  
Phacoemulsification Cataract Surgery

Objectives: To compare early subjective and objective vision quality of postoperative patients undergoing phacoemulsification cataract surgery combined with implantation of refractive segmental multifocal intraocular lens (MIOL) SBL-3 and apodized diffractive MIOL SN6AD1. Methods: As a prospective study, it enrolled 53 patients (53 eyes) to undergo phacoemulsification cataract surgery combined with MIOL implantation. According to differences in MIOL implanted, patients were divided into a SBL-3 group (25 eyes) and a SN6AD1 group (28 eyes). Ophthalmological evaluation included uncorrected (UDVA) and corrected (CDVA) distance visual acuities, uncorrected intermediate (UIVA) and near (UNVA) visual acuities, distance-corrected intermediate (DCIVA) and near (DCNVA)visual acuities and corrected near(CNVA) visual acuity, contrast sensitivity, modulation transfer function (MTF) and high order aberration (4 mm pupil diameter) at three months postoperatively. Moreover, a questionnaire survey was carried out to assess near spectacle independence, patient satisfaction and symptoms of visual disturbance. Results: At three months after surgery, UIVA and UNVA in the SBL-3 group are statistically significantly superior to those of the SN6AD1 group (P<0.05). There was statistical difference in contrast sensitivity at four spatial frequencies (3, 6, 12, 18cycles/degree) under mesopic conditions and mesopic conditions with glare (P<0.05). The total ocular high order aberration, coma and trefoil were statistically significantly larger in the SBL-3 group than in the SN6AD1 group with 4.0 mm pupil diameters (P<0.05). Statistical differences were found in the MTF at spatial frequencies of 5, 10 and 15 cycles/degree between the groups. There were no significant differences in spectacle independence, patient satisfaction and visual disturbance between the groups (P>0.05). Conclusions: Both the two multifocal intraocular lens provided an excellent level of quality of vision three months postoperatively. However, the application effect of SBL-3 MIOL is superior to that of SN6AD1 MIOL as far as intermediate vision, near vision and contrast sensitivity are concerned. doi: https://doi.org/10.12669/pjms.36.7.3364 How to cite this:Lian H, Ma W, Wei Q, Yuan X. A comparative study on early vision quality after implantation of refractive segmental and diffractive multifocal intraocular lens. Pak J Med Sci. 2020;36(7):---------. doi: https://doi.org/10.12669/pjms.36.7.3364 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Sign in / Sign up

Export Citation Format

Share Document