Transient light-sensitivity syndrome after laser in situ keratomileusis with the femtosecond laser

2006 ◽  
Vol 32 (12) ◽  
pp. 2075-2079 ◽  
Author(s):  
Gonzalo Muñoz ◽  
César Albarrán-Diego ◽  
Hani F. Sakla ◽  
Jaime Javaloy ◽  
Jorge L. Alió
Keyword(s):  
Femtosecond Laser ◽  
Light Sensitivity ◽  
Laser In Situ Keratomileusis

scholarly journals Flap Thickness and the Risk of Complications in Mechanical Microkeratome and Femtosecond Laser in Situ Keratomileusis: A Literature Review and Statistical Analysis

Diagnostics ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1588
Author(s):  
Piotr Kanclerz ◽  
Ramin Khoramnia
Keyword(s):  
Femtosecond Laser ◽  
Web Of Science ◽  
Femtosecond Lasers ◽  
Cochrane Review ◽  
Light Sensitivity ◽  
Laser In Situ Keratomileusis ◽  
Extensive Search ◽  
Flap Thickness ◽  
Flap Creation

Introduction: A recent Cochrane review found no difference in visual acuity outcomes between femtosecond-assisted laser in situ keratomileusis (LASIK) and LASIK using mechanical microkeratomes (MMKs). This study compares the flap thickness and risk of complications related to flap creation using femtosecond lasers and MMKs. Methods: PubMed and the Web of Science are used to search the medical literature. An extensive search is performed to identify the flap thickness and complications of LASIK as reported up to Jul 15, 2021. The following keywords are used in various combinations: Corneal flap, femtosecond laser, laser in situ keratomileusis, laser-assisted in situ keratomileusis, LASIK, mechanical microkeratome. Results: After removing duplicates and irrelevant studies, 122 articles were included for review. Pooled differences for intended vs. postoperative flap thickness using MMKs and femtosecond laser were −4.07 μm (95% CI: −19.55, 3.24 μm) in studies on the MMK and 5.43 μm (95% CI: 2.30, 7.84 μm; p < 0.001), respectively. After removing the studies evaluating outcomes of the old generation Hansatome MMKs (which had a significantly greater variation of flap thickness), the pooled difference for newer MMKs was 4.97 μm (95% CI: 0.35, 9.58 μm; p < 0.001), but the results still favored the femtosecond laser. Uncommon and mild complications unique for the femtosecond LASIK are epithelial gas breakthrough, opaque bubble layer, transient light sensitivity syndrome, and rainbow glare. A single study reported a very low, but stastically different risk of postoperative flap slippage (0.033% for MMK LASIK, and 0.003% for femtosecond LASIK, respectively). Conclusion: In both manual microkeratome and femtosecond LASIK, intra- and postoperative complications were uncommon. The evidence of the superiority of one technique in terms of complications over another cannot be indisputably stated.

Peripheral keratitis following low-pulse energy femtosecond laser in situ keratomileusis

2012 ◽  
Vol 38 (10) ◽  
pp. 1881-1882 ◽  
Author(s):  
Jonathan D. Solomon ◽  
Jen Weigel ◽  
Andrew E. Holzman
Keyword(s):  
Femtosecond Laser ◽  
Pulse Energy ◽  
Laser In Situ Keratomileusis

Comparison of performances of femtosecond laser and microkeratome for thin-flap laser in situ keratomileusis

2016 ◽  
Vol 48 (6) ◽  
pp. 596-601 ◽  
Author(s):  
Ngamjit Kasetsuwan ◽  
Vannarut Satitpitakul ◽  
Vilavun Puangsricharern ◽  
Usanee Reinprayoon ◽  
Lalida Pariyakanok
Keyword(s):  
Femtosecond Laser ◽  
Laser In Situ Keratomileusis

Dry eyes and corneal sensation after laser in situ keratomileusis with femtosecond laser flap creation

2009 ◽  
Vol 35 (12) ◽  
pp. 2092-2098 ◽  
Author(s):  
Shahzad I. Mian ◽  
Amy Y. Li ◽  
Satavisha Dutta ◽  
David C. Musch ◽  
Roni M. Shtein
Keyword(s):  
Femtosecond Laser ◽  
Laser In Situ Keratomileusis ◽  
Dry Eyes ◽  
Corneal Sensation ◽  
Flap Creation

scholarly journals Predictors affecting myopic regression in − 6.0D to − 10.0D myopia after laser-assisted subepithelial keratomileusis and laser in situ keratomileusis flap creation with femtosecond laser-assisted or mechanical microkeratome-assisted

2019 ◽  
Vol 40 (1) ◽  
pp. 213-225 ◽  
Author(s):  
Jihong Zhou ◽  
Wei Gu ◽  
Shaowei Li ◽  
Lijuan Wu ◽  
Yan Gao ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Contact Lens ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Case Series ◽  
Older Age ◽  
Laser In Situ Keratomileusis ◽  
Corneal Curvature ◽  
Case Series Study

Abstract Purpose To investigate the predictive factors of postoperative myopic regression among subjects who have undergone laser-assisted subepithelial keratomileusis (LASEK), laser-assisted in situ keratomileusis (LASIK) flap created with a mechanical microkeratome (MM), and LASIK flap created with a femtosecond laser (FS). All recruited patients had a manifest spherical equivalence (SE) from − 6.0D to − 10.0D myopia. Methods This retrospective, observational case series study analyzed outcomes of refraction at 1 day, 1 week, and 1, 3, 6, and 12 months postoperatively. Predictors affecting myopic regression and other covariates were estimated with the Cox proportional hazards model for the three types of surgeries. Results The study enrolled 496 eyes in the LASEK group, 1054 eyes in the FS-LASIK group, and 910 eyes in the MM-LASIK group. At 12 months, from − 6.0D to − 10.0D myopia showed that the survival rates (no myopic regression) were 52.19%, 59.12%, and 58.79% in the MM-LASIK, FS-LASIK, and LASEK groups, respectively. Risk factors for myopic regression included thicker postoperative central corneal thickness (P ≦ 0.01), older age (P ≦ 0.01), aspherical ablation (P = 0.02), and larger transitional zone (TZ) (P = 0.03). Steeper corneal curvature (Kmax) (P = 0.01), thicker preoperative central corneal thickness (P < 0.01), smaller preoperative myopia (P < 0.01), longer duration of myopia (P = 0.02), with contact lens (P < 0.01), and larger optical zone (OZ) (P = 0.02) were protective factors. Among the three groups, the MM-LASIK had the highest risk of postoperative myopic regression (P < 0.01). Conclusions The MM-LASIK group experienced the highest myopic regression, followed by the FS-LASIK and LASEK groups. Older age, aspheric ablation used, thicker postoperative central corneal thickness, and enlarging TZ contribute to myopic regression; steeper preoperative corneal curvature (Kmax), longer duration of myopia, with contact lens, thicker preoperative central corneal thickness, lower manifest refraction SE, and enlarging OZ prevent postoperative myopic regression in myopia from − 6.0D to − 10.0D.

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