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J Cataract Refract Surg 2020 May 27. Epub 2020 May 27.

Clínica Novovisión, Madrid, Spain.

Purpose: To assess the relevance of the homogeneity of femtosecond laser (FSL) flap thickness regarding induction of higher order aberrations (HOAs).

Setting: Clínica Rementería & Clínica Novovisión, Madrid, Spain.

Design: Prospective, observational study. Read More

Sci Rep 2020 Jun 26;10(1):10446. Epub 2020 Jun 26.

Woori Eye Clinic, Daejon, South Korea.

This study compared one-year postoperative outcomes of laser refractive surgery combined with laser asymmetric keratectomy (LAK) and laser in situ keratomileusis (LASIK)for myopia correction in middle-aged patients (aged 40-49 years) with a total corneal thickness deviation (summed across four directions) ≥ 80 microns. The control group (n = 26; 52 eyes) underwent LASIK; the comparison group (n = 26; 52 eyes) underwent combined laser refractive surgery and LAK. Age, spherical equivalence, uncorrected visual acuity (near and far), corneal irregularity on the Orbscan map, sum of corneal thickness deviations in four directions, corneal thickness distribution, distance between the maximum posterior elevation (best-fit sphere; BFS) and visual axis, and postoperative blurring scores were analysed retrospectively between the groups. Read More

BMC Ophthalmol 2020 Jun 19;20(1):243. Epub 2020 Jun 19.

Qingdao Eye Hospital, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, 266071, Shandong Province, China.

Background: To compare the clinical outcomes of transepithelial photorefractive keratectomy (TPRK) with femtosecond laser-assisted in situ keratomileusis (FS-LASIK) for correction of high myopia.

Methods: In this prospective, non-randomised, cohort study, 85 eyes of 46 patients treated with TPRK and 80 eyes of 42 patients treated with FS-LASIK were included. All eyes were highly myopic (spherical equivalent refraction <- 6. Read More

BMC Ophthalmol 2020 Jun 17;20(1):234. Epub 2020 Jun 17.

LASIK MD, 1250 Rene-Levesque Blvd W, MD Level, Montreal, QC, H3B 4W8, Canada.

Background: To evaluate laser-assisted in situ keratomileusis (LASIK) outcomes, subjective quality of vision (QoV) and patient satisfaction in eyes with very high myopia (VHM) above - 10.00 diopters (D).

Methods: Consecutive myopic and myopic-astigmatism eyes with spherical equivalent (SEQ) ranging between - 10. Read More

J Refract Surg 2020 Jun;36(6):400-404

Purpose: To analyze a case of unilateral rainbow glare that required repeated undersurface photoablation using an excimer laser.

Methods: A 31-year-old man with bilateral myopia of 6.50 diopters treated with femtosecond laser-assisted in situ keratomileusis immediately experienced a 2-year life-incapacitating rainbow glare exclusively in the right eye. Read More

Jpn J Ophthalmol 2020 Jul 9;64(4):450-454. Epub 2020 Jun 9.

Department of Ophthalmology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Hirokoji-agaru, Kawaramachi-dori, Kamigyo-ku, Kyoto, 602-0841, Japan.

Purpose: To investigate the increase in refractive error (RE) and axial length (AL) in myopia patients in their 20s and 30s after laser-assisted in situ keratomileusis (LASIK) or epipolis-LASIK (epi-LASIK).

Study Design: Retrospective cohort study.

Methods: This retrospective study involved 280 eyes of 140 myopia patients who underwent LASIK or epi-LASIK at the Baptist Eye Institute, Kyoto, Japan and who were followed for more than 5 years postoperatively. Read More

Am J Ophthalmol Case Rep 2020 Sep 4;19:100729. Epub 2020 May 4.

Hoopes Durrie Rivera Research Center, Hoopes Vision; 11820 State St, Draper, UT, 84020, USA.

Purpose: We describe the first case of Ehlers Danlos Syndrome (EDS) reported in the English language ophthalmic literature to have undergone Laser In Situ Keratomileusis (LASIK) surgery.

Observations: We review our patient's specific postoperative complications of myopic regression, Salzmann nodular degeneration, and dry eye syndrome, as well as the risks and consequences of performing LASIK on patients with this collagen disorder.

Conclusions And Importance: Refractive errors may prompt EDS patients to seek laser vision correction, placing them at increased risk for complications such as myopic regression, keratectasia, and dry eye syndrome. Read More

Clin Ophthalmol 2020 24;14:1091-1100. Epub 2020 Apr 24.

TLC Laser Centers, Greensboro, NC, USA.

Purpose: To identify the laser programming strategy that will achieve optimal refractive outcomes of LASIK with a topography-guided laser for eyes with a disparity between cylinder measured by manifest refraction and cylinder measured by topography.

Setting: Six surgeons at 5 clinical sites in the USA.

Design: Retrospective data review. Read More

Int J Ophthalmol 2020 18;13(5):782-787. Epub 2020 May 18.

Department of Ophthalmology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.

Aim: To compare intraocular pressure (IOP) measurements before and after laser keratomileusis (LASIK) with a femtosecond laser for flap creation using ocular response analyzer (ORA) and Goldmann applanation tonometry, and to identify factors that may influence the preoperative and postoperative IOP.

Methods: A prospective study conducted on myopic patients who underwent LASIK using a femtosecond laser for flap fashioning. Enrolled patients were evaluated preoperatively, 6wk and 3mo postoperatively for manifest refraction (MR), keratometric (K) readings and central corneal thickness (CCT) using a scheimpflug-based topography. Read More

Int J Ophthalmol 2020 18;13(5):773-781. Epub 2020 May 18.

Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.

Aim: To investigate the changes in choroidal thickness (CT) in high myopic eyes after femtosecond laser-assisted keratomileusis (FS-LASIK) surgery or central hole implantable collamer lens (ICL V4c) implantation using swept-source optical coherence tomography (SS-OCT).

Methods: We examined the right eyes of 116 patients with high myopia who were candidates for FS-LASIK surgery and ICL implantation. Sixty eyes underwent ICL V4c implantation and 56 eyes were subjected to FS-LASIK surgery. Read More

Optom Vis Sci 2020 May;97(5):360-369

The Cornea Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India.

Significance: Laser refractive surgery procedures are efficacious at correcting myopia, but they result in long-term deterioration of optical quality that affects monocular and binocular visual performance. The study shows that the optical quality of the two eyes needs to be similar to optimize binocular visual performance after surgery.

Purpose: This study aimed to systematically analyze longitudinal changes in optical quality, high- and low-contrast logMAR acuity and random-dot stereoacuity before and after three refractive surgery procedures for correcting myopia. Read More

BMC Ophthalmol 2020 May 14;20(1):192. Epub 2020 May 14.

Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, 06351, Republic of Korea.

Background: To compare the outcomes of myopia and myopic astigmatism corrected with topography-modified refraction laser in situ keratomileusis (TMR-LASIK), wavefront-optimized (WFO) LASIK, and topography-guided (TG) LASIK with a correction target based on the manifest refraction (manifest TG-LASIK).

Methods: This observational, retrospective cohort study included patients who underwent LASIK using the WaveLight® EX500 excimer laser to correct myopia and myopic astigmatism between August 2016 and July 2017. Patients who underwent TMR-LASIK (85 patients), WFO-LASIK (70 patients), or manifest TG-LASIK (40 patients) were enrolled, and only one eye from each patient was analyzed. Read More

J Ophthalmol 2020 27;2020:3873740. Epub 2020 Mar 27.

Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology &Visual Sciences Key Lab, Beijing 100730, China.

Purpose: To evaluate the effect of laser refractive surgery on sensory eye dominance of anisometropia.

Methods: A total of 156 subjects with nonanisometropic myopia and 70 subjects with anisometropic myopia were enrolled in the first part of the study. The dichoptic motion coherence threshold technique was applied to collect the normal dataset and distribution of sensory eye dominance. Read More

Arch Soc Esp Oftalmol 2020 Apr 26. Epub 2020 Apr 26.

Clínica Oftalmológica Antonio Moreno, Málaga, España; Departamento de Oftalmología, Universidad de Málaga, Málaga, España.

Objective: To compare corneal epithelial thickness (CET) between patients who underwent LASIK surgery for the correction of myopia at least one year ago and healthy subjects.

Methods: A retrospective observational study was conducted that included 93 healthy subjects (186eyes) and 26 subjects (52eyes) that underwent myopic LASIK surgery. OCT-SA, combined with Placido disk, was performed on all subjects, and CET maps were measured. Read More

Clin Exp Optom 2020 Apr 27. Epub 2020 Apr 27.

Department of Optics, Pharmacology and Anatomy, University of Alicante, Alicante, Spain.

Clinical Relevance: The control of myopia progression is currently considered an evidence-based therapeutic need.

Background: To determine the efficacy and safety of the Esencia lens, a new soft contact lens (SCL) designed to slow down myopia progression in paediatric patients.

Methods: This study was a randomised, parallel, double-masked clinical trial. Read More

Health Qual Life Outcomes 2020 Apr 25;18(1):107. Epub 2020 Apr 25.

The Key Lab of Myopia, Ministry of Health, Shanghai, People's Republic of China.

Background: This study aimed to compare long-term postoperative quality of life and satisfaction differences between SMILE and FS-LASIK for myopia correction.

Methods: This cross-sectional study enrolled patients under the age of 39 years, who chose to undergo SMILE or FS-LASIK surgery to both eyes 3 years previously. Patients completed a common vision test and Quality of Life Impact of Refractive Correction (QIRC) questionnaire, together with the surgical satisfaction, adverse symptoms subjective survey. Read More

Graefes Arch Clin Exp Ophthalmol 2020 Jul 24;258(7):1555-1563. Epub 2020 Apr 24.

State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Qingdao, 266071, Shandong, China.

Purpose: To evaluate the ablation zone diameter (AZD) using six modes of corneal topography after small-incision lenticule extraction (SMILE) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK) for myopia and to compare the programmed and postoperative AZDs METHODS: This retrospective comparative study included 86 right eyes in 86 patients who underwent SMILE or FS-LASIK at the Shandong Eye Institute between June 2016 and August 2017. Data were collected preoperatively and at 1, 3, and 6 months postoperatively using the Pentacam system. The AZD was determined using six modes of corneal topography: postoperative axial curvature topography (PACT), postoperative tangential curvature topography (PTCT), difference-axial curvature topography (DACT), difference-tangential curvature topography (DTCT), postoperative front elevation topography (PFET), and difference-corneal thickness topography (DCTT). Read More

J Ophthalmol 2020 30;2020:4354085. Epub 2020 Mar 30.

Johns Hopkins Biostatistics Center, Bloomberg School of Public Health, Baltimore, MD, USA.

Objective: Refractive surgery volume has not rebounded despite economic recovery and literature describing safety, efficacy, and high patient satisfaction. We sought to examine characteristics of consultation seekers and status after consultation.

Methods: Charts of patients seeking refractive surgery at Johns Hopkins University from 2013 through 2016 were retrospectively reviewed for age, gender, refractive characteristics, and outcome: surgery (photorefractive keratectomy, laser in-situ keratomileusis, implantable collamer lens, or refractive lens exchange); no surgery-"lost candidate" (good candidates who were lost after consultation); noncandidates based on technological limitations or contraindications; or no surgery-possessing expectations that surgery would not meet. Read More

J Cataract Refract Surg 2020 04;46(4):646-651

A 36-year-old man was referred back to our clinic after an uneventful laser in situ keratomileusis (LASIK) surgery 6 months previously, with a chief complaint of declining vision in the left eye for the last several months. His pertinent ocular history prior to the LASIK surgery was significant for episodic left eye irritation and inflammation of the superior part of the left cornea secondary to contact lens-induced keratopathy, according to his optometrist.This was a femtosecond-assisted LASIK surgery using the WaveLight FS200 femtosecond laser (Alcon) with the Allegretto EX500 excimer laser (Alcon) for attempted correction of -4. Read More

J Cataract Refract Surg 2020 Apr 3. Epub 2020 Apr 3.

Warfighter Refractive Eye Surgery Program and Research Center at Fort Belvoir, Fort Belvoir, VA, USA.

Purpose: To assess the visual outcomes of small-incision lenticule extraction (SMILE) after the first year of treatments at a military refractive surgery center and compare with photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) outcomes during the same period.

Setting: Warfighter Refractive Eye Surgery Program and Research Center, Fort Belvoir, Virginia, USA.

Design: Retrospective study. Read More

Cochrane Database Syst Rev 2020 04 7;4:CD012946. Epub 2020 Apr 7.

Universidad Anáhuac México, Campus Norte, Centro de Investigación en Ciencias de la Salud (CICSA), Facultad de Ciencias de la Salud, Av. Universidad Anáhuac 46, Huixquilucan, Mexico, Mexico, 52786.

Background: Laser-assisted in-situ keratomileusis (LASIK) is a surgical procedure that corrects refractive errors. This technique creates a flap of the outermost parts of the cornea (epithelium, bowman layer, and anterior stroma) to expose the middle part of the cornea (stromal bed) and reshape it with excimer laser using photoablation. The flaps can be created by a mechanical microkeratome or a femtosecond laser. Read More

Acta Inform Med 2020 Mar;28(1):24-28

NHS National Services Scotland, Edinburgh, United Kingdom.

Introduction: Refractive surgery procedures, transepithelial photorefractive keratectomy (T-PRK) and femtosecond laser in situ keratomileusis (Fs-LASIK) are regarded as safe and efficacious methods for correcting myopia and myopic astigmatism. These two methods do not have much differences in results when treating spherical myopia, while some differences does exist in treatment of myopic astigmatism. Vector analysis presents powerful tool to show the real differences between these two methods regarding higher order ocular aberrations and central corneal thickness of treated eyes. Read More

J Cataract Refract Surg 2020 03;46(3):403-409

From the University of Health Sciences Beyoğlu Eye Training and Research Hospital (Tülü Aygün, Ağca, Yıldırım, Kepez Yıldız, Sucu, Kandemir Beşek), Istanbul, Department of Ophthalmology (Çankaya), Yalova State Hospital, Yalova, and Department of Ophthalmology (Demirok), Istanbul Medeniyet University, Istanbul, Turkey.

Purpose: To compare the long-term refractive and visual outcomes and the corneal higher-order aberrations of contralateral eyes of patients who received small-incision lenticule extraction (SMILE) in one eye and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) in the other eye.

Setting: Refractive Surgery Clinic of the University of Health Sciences Beyoğlu Eye Training and Research Hospital, Istanbul, Turkey.

Design: Retrospective case series. Read More

J Cataract Refract Surg 2020 03;46(3):419-427

From the Department of Ophthalmology, The Eye and ENT Hospital of Fudan University China (Han, Shang, Xueyi Zhou, Xu, Xingtao Zhou), Shanghai, NHC Key Laboratory of Myopia, Fudan University, Chinese Academy of Medical Sciences (Han, Shang, Xueyi Zhou, Xu, Xingtao Zhou), Beijing, Research Center of Ophthalmology and Optometry (Han, Xu, Xingtao Zhou), Shanghai, China; Cornea and Refractive Service, Singapore National Eye Centre (Ang); and Ophthalmology and Visual Sciences, DUKE-National University of Singapore (Ang), Singapore.

Purpose: To compare the long-term refractive effects of small-incision lenticule extraction (SMILE) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) on the correction of high myopia and astigmatism.

Setting: The Eye and ENT Hospital of Fudan University, Shanghai, China.

Design: Retrospective case series. Read More

J Cataract Refract Surg 2020 02;46(2):260-266

From Complexo Hospitalario Universitario de Pontevedra (Parafita-Fernandez), Pontevedra, Clínica Oftalmológica Dr Parafita (Parafita-Fernandez), Ribeira, Clínica Rementería (Garcia-Gonzalez, Gros-Otero, Alvarez-Rementería Capelo; Blázquez Sánchez), Madrid, Clínica Novovisión (Garcia-Gonzalez, Teus), Madrid, Universidad Europea de Madrid (Garcia-Gonzalez), Madrid, Universidad Complutense de Madrid, Madrid (Blázquez Sánchez), and Hospital Universitario Príncipe de Asturias, University of Alcalá (Teus), Alcalá de Henares, Madrid, Spain.

Purpose: To describe the postoperative evolution of visual acuity, flap morphology, and stromal optical density femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK).

Setting: Clínica Rementería, Madrid, Spain.

Design: Prospective case series. Read More

Clin Ophthalmol 2020 21;14:509-516. Epub 2020 Feb 21.

Cornea and Refractive Surgery Department, Research Institute of Ophthalmology, Giza, Egypt.

Background: Corneal refractive surgery is widely used worldwide. Myopia is the most common reason for laser-assisted corneal refractive surgery (LASIK) and one of the risk factors for glaucoma. Intraocular pressure (IOP) measurement becomes variable postoperatively as the results are affected by the decrease in corneal thickness and biomechanics. Read More

Int Ophthalmol 2020 Jun 19;40(6):1419-1428. Epub 2020 Feb 19.

Joint Shantou International Eye Center of Shantou University and the Chinese University of Hong Kong, Dong Xia North Road, Shantou, Guangdong Province, China.

Purpose: To compare the visual quality after surgery of femtosecond-assisted laser in situ keratomileusis (Femto-LASIK) and transepithelial photorefractive keratectomy (TransPRK) in low and moderate myopia patients.

Methods: A prospective controlled study was performed on 114 eyes of 62 patients with low to moderate myopia, including 64 eyes of 36 cases in Femto-LASIK group and 50 eyes of 26 cases in TransPRK group. The uncorrected visual acuity (UCVA), best-corrected visual acuity (BCVA), residual spherical equivalent (SE), wavefront aberration and contrast sensitivity were examined and analyses preoperatively, 1 month and 3 months postoperatively. Read More

Zhonghua Yan Ke Za Zhi 2020 Feb;56(2):118-125

Ophthalmic Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Lab., Beijing, China 100730.

To investigate mesopic contrast sensitivity (CS) and high-order aberrations after femtosecond laser-assisted LASIK (FS-LASIK), wavefront-guided femtosecond LASIK (WF-LASIK) and small incision lenticule extraction (SMILE) for myopia and astigmatism. In this case-control study, 212 eyes of 108 patients with myopia and astigmatism from September 2014 to September 2016 were treated by refractive surgery. There were 34 males (66 eyes) and 74 females (146 = eyes), aged 27 (24, 32) years. Read More

Zhonghua Yan Ke Za Zhi 2020 Feb;56(2):93-102

Department of Ophthalmology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.

To investigate the corneal epithelial thickness changes between small incision lenticule extraction (SMILE) and femtosecond laser-assisted LASIK (FS-LASIK), study the related factors and analyze the relationship between the changes in corneal epithelial thickness and corneal aberration. This case control study included 59 patients (118 eyes), 27 males and 32 females, aged 25.64±5. Read More

Eye Contact Lens 2020 May;46(3):182-189

Assuta Optic (A.G., E.L., I.B.), Assuta Medical Center, Tel Aviv, Israel; Ophthalmology Division (A.G., O.R., E.L., R.E., I.B.), Rabin Medical Center, Petach Tikva, Israel; Department of Ophthalmology (M.M., R.E.), Rambam Health Care Campus, Haifa, Israel; and Sackler Faculty of Medicine (E.L., I.B.), Tel Aviv University, Tel Aviv, Israel.

Objectives: Our aim is to evaluate the safety, efficacy, predictability, and clinical outcome of femtosecond laser-assisted in situ keratomileusis (FS-LASIK) procedures performed on the day of the initial consultation relative to procedures performed at subsequent visits.

Methods: A retrospective cohort study design was used. The study group included patients with myopia of different severities who were treated with FS-LASIK in 2013 through 2014 in an optical outpatient clinic of a large private medical service. Read More

J Cataract Refract Surg 2020 01;46(1):63-71

Zhongshan Ophthalmic Center, State Key Laboratory of Ophthalmology, Sun Yat-sen University, Guangzhou, China.

Purpose: To compare small incision lenticule extraction (SMILE) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) in terms of safety, refractive outcomes, visual quality, and biomechanical responses in correcting myopia with maximum myopic meridian exceeding 10 diopters (D).

Setting: Zhongshan Ophthalmic Center, Sun Yat-sen University.

Design: Prospective, randomized, comparative study. Read More

J Cataract Refract Surg 2020 Jan 27. Epub 2020 Jan 27.

Department of Ophthalmology, The Eye and ENT Hospital of Fudan University, Shanghai, China.

Purpose: To compare the long-term refractive effects of small incision lenticule extraction (SMILE) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) for correction of high myopia and astigmatism.

Setting: The Eye and ENT Hospital of Fudan University DESIGN:: Retrospective case series.

Methods: This study included 121 patients (121 eyes: 75 in SMILE group and 46 in FS-LASIK group) who underwent SMILE or FS-LASIK for high myopia. Read More

Int J Ophthalmol 2020 18;13(1):129-134. Epub 2020 Jan 18.

Egyptian Police Hospitals, Cairo 11765, Egypt.

Aim: To evaluate the safety and efficacy of transepithelial photorefractive keratectomy (t-PRK) with adjuvant mitomycin C (MMC) versus femtosecond laser assisted keratomileusis (Femto-LASIK) in correction of high myopia.

Methods: Prospective randomized comparative study including 156 eyes of 156 patients with high myopia and a spherical equivalent refraction (SER) <-6.00 D. Read More

J Biol Regul Homeost Agents 2019 Nov-Dec;33(6):1871-1874

Department of Clinical inspection section, Ningbo Eye Hospital, Ningbo, China.

Acta Ophthalmol 2020 Mar 7;98(2):e161-e172. Epub 2020 Jan 7.

Department of Ophthalmology, Eye and ENT Hospital of Fudan University, Shanghai, China.

Purpose: To compare the efficacy and visual outcomes after femtosecond laser small incision lenticule extraction (SMILE) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) in correcting high myopia.

Methods: This prospective, randomized study included patients who underwent SMILE or FS-LASIK for the correction of high myopia [the sum of spherical and cylindrical error from -10.00 to -14. Read More

Int J Environ Res Public Health 2019 12 31;17(1). Epub 2019 Dec 31.

Department of Biomedical Engineering, Cleveland Clinic, Cole Eye Institute, Cleveland, OH 44195, USA.

The use of computational mechanics for assessing the structural and optical consequences of corneal refractive procedures is increasing. In practice, surgeons who elect to perform PRK rather than LASIK must often reduce the programmed refractive treatment magnitude to avoid overcorrection of myopia. Building on a recent clinical validation study of finite element analysis (FEA)-based predictions of LASIK outcomes, this study compares predicted responses in the validated LASIK cases to theoretical PRK treatments for the same refractive error. Read More

Oman J Ophthalmol 2019 Sep-Dec;12(3):203-205. Epub 2019 Oct 11.

Tej Kohli Cornea Institute, L V Prasad Eye Institute, Hyderabad, Telangana, India.

We hereby report a case of infectious keratitis after laser keratomileusis (LASIK) caused by , a commensal, managed successfully in a nonimmunocompromised individual. A 25-year-old healthy male underwent uneventful bilateral simultaneous LASIK for myopia using disposable blades. Postoperatively, topical antibiotic and steroids were advised; he discontinued antibiotic on his own after using for a day. Read More

Ophthalmic Epidemiol 2020 Jun 26;27(3):177-185. Epub 2019 Dec 26.

School of Public Health, Capital Medical University, Beijing, China.

: To determine the predictive factors of postoperative myopic regression in subjects who have undergone laser-assisted subepithelial keratomileusis (LASEK), laser-assisted in situ keratomileusis (LASIK) with flaps created using a mechanical microkeratome (MM) or LASIK with flaps created using a femtosecond (FS) laser for -0.50 D to -6.0 D myopia. Read More

Curr Eye Res 2020 02 26;45(2):144-152. Epub 2019 Dec 26.

School of Engineering, University of Liverpool, Liverpool, UK.

: To test the performance of the four tonometers in providing IOP measurements that were free of the effects of corneal biomechanics changes caused by refractive surgery.: Four tonometers were employed to provide IOP measurements for 65 participants who accepted Femtosecond laser-assisted LASIK (FS-LASIK). The measurements included GAT-IOP by the Goldmann Applanation Tonometer, DCT-IOP by the Dynamic Contour Tonometer, Goldmann-correlated IOP (ORA-IOPg) and corneal-compensated IOP (ORA-IOPcc) by the Ocular Response Analyzer, and uncorrected IOP (CVS-IOP) and biomechanically corrected IOP (CVS-bIOP) by the Corvis ST. Read More

J Refract Surg 2019 12;35(12):815

J Refract Surg 2019 Dec;35(12):764-770

Purpose: To evaluate the accelerator role of a topically administered neuroprotective eye drop (citicoline) on the recovery of corneal sensitivity after laser in situ keratomileusis (LASIK).

Methods: In this prospective, controlled study, 78 eyes of 78 patients (mean age: 26.8 ± 7. Read More

J Refract Surg 2019 Dec;35(12):754-762

Purpose: To investigate the contribution of anterior corneal higher-order aberration ablation depth (HOA-AD) to topography-guided outcomes.

Methods: This was a retrospective comparative analysis of 9,722 consecutive eyes undergoing laser in situ keratomileusis (LASIK) treated on the clinically measured refractive cylinder with Contoura software (Alcon Laboratories, Inc., Fort Worth, TX). Read More

BMC Ophthalmol 2019 Dec 11;19(1):251. Epub 2019 Dec 11.

Onnuri Eye Hospital, 325, Baekje-daero, Wansan-gu, Jeonju-si, Jeollabuk-do, Republic of Korea.

Background: To compare the changes in the anterior segment after femtosecond laser in situ keratomileusis (FS-LASIK) and small incision lenticule extraction (SMILE) using a dual rotating Scheimpflug (DRS) analyzer (Galilei®; Ziemer Ophthalmology, Port, Switzerland).

Methods: A total of 218 eyes of 109 patients who underwent FS-LASIK or SMILE for myopic correction were retrospectively studied. Ninety-eight eyes of 49 patients who underwent FS-LASIK were compared to 120 eyes of 60 patients treated with SMILE. Read More

Ophthalmic Res 2019 Dec 5:1-7. Epub 2019 Dec 5.

Department of Ophthalmology and Optometry, Eye and ENT Hospital, Fudan University, Shanghai, China.

Purpose: The aim of this study was to compare visual outcomes after small incision lenticule extraction (SMILE) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK) for high myopia.

Methods: In this prospective, comparative study, a total of 52 eyes of 34 consecutive highly myopic patients with spherical equivalent within the range of -8.00 to -10. Read More

Curr Neurol Neurosci Rep 2019 11 28;19(12):104. Epub 2019 Nov 28.

DENT Neurological Institute, 3890 Sheridan Drive, Amherst, NY, 14226, USA.

Purpose Of Review: High altitude headache is a common neurological symptom that is associated with ascent to high altitude. It is classified by the International Classification of Headache Disorders, 3rd Edition (ICHD-3) as a disorder of homeostasis. In this article, we review recent clinical and insights into the pathophysiological mechanisms of high altitude and airplane headache. Read More

Vestn Oftalmol 2019 ;135(5):99-106

Research Institute of Eye Diseases, 11A Rossolimo St., Moscow, Russian Federation, 119021.

Small incision lenticule extraction (SMILE) keratorefractive surgery technique is a laser surgery alternative to common methods that doesn't require laser ablation of the cornea. Despite its novelty, SMILE technique has already demonstrated positive clinical results comparable to Photorefractive Keratectomy (PRK) and Laser-Assisted in Situ Keratomileusis (LASIK), which led to its widespread application in clinical practice. Compared with other keratorefractive techniques, SMILE has a number of distinct advantage including high biomechanical stability of the cornea, low risk of dry eye syndrome, absence of a corneal flap and associated complications, preservation of corneal epithelium. Read More

Vestn Oftalmol 2019 ;135(5):13-23

S.N. Fyodorov National Medical Research Center 'MNTK 'Eye Microsurgery', 59A Beskudnikovsky Blvd., Moscow, Russian Federation, 127486.

Purpose: To compare the effectiveness, safety, predictability and stability of FemtoLASIK procedure in low to moderate myopia using Femto Visum and Femto LDV Z6 femtosecond laser platforms and to evaluate the effect of these procedures on corneal higher-order aberrations.

Material And Methods: Russian femtolaser platform (1 MHz) was used to form the corneal flap in the main group consisting of 98 patients (98 eyes) with mean spherical equivalent (SE) of -3.73±1. Read More