Assessment of contrast sensitivity loss after intrastromal femtosecond laser and LASIK procedure

L.C., Elsa; Lian, Ie Bin; Chang, David C. K.

doi:10.18240/ijo.2016.12.16

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…In our study, contrast sensitivity decreased in all frequencies under photopic conditions and mesopic conditions with glare and in low frequencies under the mesopic condition without glare. Many scientific studies have shown that contrast sensitivity is a robust indicator of functional vision [26–28], and the loss of contrast sensitivity after femtosecond laser procedures is considered to be a factor that worsens vision quality [29]; therefore, the decrease in contrast sensitivity after Flexivue Microlens implantation might play a role in lowering patient satisfaction and worsening UNVA.…”

Section: Discussionmentioning

confidence: 99%

Refractive corneal inlay for presbyopia in emmetropic patients in Asia: 6-month clinical outcomes

et al. 2019

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Background To evaluate the 6-month clinical outcomes of Flexivue Microlens refractive corneal inlay in emmetropic patients in Asia for the surgical compensation of presbyopia. Methods In this retrospective study, corneal inlay implantation was done using a femtosecond laser. The follow-up period was 6 months. Near/intermediate/distant visual acuities, refraction, keratometry, defocus curve, wavefront aberrations, contrast sensitivity, Scheimpflug corneal scanning, endothelial cell density, dry eye test, confocal microscopy scanning, and patient questionnaires were evaluated. Results The inlay implantation was performed in 21 eyes from June 2015 to April 2017. 6 months after surgery, the uncorrected near visual acuity of the operated eyes increased significantly from 0.55 ± 0.22 logMAR preoperatively to 0.25 ± 0.15 logMAR ( p < 0.05) but mean bilateral uncorrected distant visual acuity did not change significantly ( p = 0.90). Total higher-order aberration and spherical aberration increased, and the contrast sensitivity of the operated eyes decreased. Endothelial cell density and central corneal thickness did not change from preoperative values. Patient satisfaction for near vision was increased 6 months after implantation, and 50.0% of patients were independent of near spectacles. Explantation was done in 2 cases. Conclusion The Flexivue Microlens refractive corneal inlay was effective for improving near visual acuity at 6 months follow-up But proportion of spectacle independency and patient satisfaction were lower in this Korean population than in previous reports. Further study with a longer follow-up period is needed.

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Section: Discussionmentioning

confidence: 99%

Refractive corneal inlay for presbyopia in emmetropic patients in Asia: 6-month clinical outcomes

et al. 2019

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“…Thus, biophysical surface modification and optimization have become one of the most attractive research areas in biomaterial science 10 , 11 . The application of femtosecond laser (FSL) pulses in medicine is a growing field of interest; for example, FSL is currently used in refractive surgery for vision correction 12 , neurosurgery 13 or nanosurgery in single cells 14 . The main advantage of using FSL pulses is the high cutting precision in the micrometer range accompanied by minimal collateral damage.…”

Section: Introductionmentioning

confidence: 99%

Novel Polymer-Free Everolimus-Eluting Stent Fabricated using Femtosecond Laser Improves Re-endothelialization and Anti-inflammation

Bae

Cho

Lim

et al. 2018

Sci Rep

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The aim of this study was to fabricate a novel polymer-free everolimus-eluting stent with nanostructure using a femtosecond laser (FSL). The stent were coated with everolimus (EVL) using FSL and electrospinning processes. The surface was rendered hydrophobic, which negatively affected both platelet adhesion (82.1%) and smooth muscle cell response. Animal study was performed using a porcine coronary restenosis model. The study groups were divided into 1) bare metal stent (BMS), 2) poly(L-lactide) (PLA)-based EVL drug eluting stent (DES), 3) commercial EVL-eluting DES, and 4) FSL-EVL-DES. After four weeks of stent implantation, various analyses were performed. Quantitative analysis showed that the amount of in-stent restenosis was higher in the BMS group (BMS; 27.8 ± 2.68%, PLA-based DES; 12.2 ± 0.57%, commercial DES; 9.8 ± 0.28%, and FSL-DES; 9.3 ± 0.25%, n = 10, p < 0.05). Specifically, the inflammation score was reduced in the FSL-DES group (1.9 ± 0.39, n = 10, p < 0.05). The increment in re-endothelialization in the FSL-DES group was confirmed by immunofluorescence analysis. Taken together, the novel polymer-free EVL-eluting stent fabricated using FSL can be an innovative DES with reduced risk of ISR, thrombosis, and inflammation.

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Refractive corneal inlay implantation outcomes: a preliminary systematic review

et al. 2021

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Assessment of contrast sensitivity loss after intrastromal femtosecond laser and LASIK procedure

Abstract: INTRACOR procedure produces a gain of near vision for presbyopia patients but also introduces a high lost of contrast sensitivity plus worsen of vision quality. Pre-surgical patient selection and advise should be given with specific regards to night driving and glare conditions.

Cited by 5 publications

References 17 publications

Refractive corneal inlay for presbyopia in emmetropic patients in Asia: 6-month clinical outcomes

Refractive corneal inlay for presbyopia in emmetropic patients in Asia: 6-month clinical outcomes

Novel Polymer-Free Everolimus-Eluting Stent Fabricated using Femtosecond Laser Improves Re-endothelialization and Anti-inflammation

Refractive corneal inlay implantation outcomes: a preliminary systematic review

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