journal
https://read.qxmd.com/read/37449509/rotational-stability-after-implantation-of-two-different-phakic-toric-intraocular-lenses
#81
JOURNAL ARTICLE
Deniz Kilic, Anika Förster, Erik Mertens, H Burkhard Dick, Suphi Taneri
PURPOSE: To compare clinical outcomes and rotational stability of the toric implantable Collamer lens (TICL) and toric implantable phakic contact lens (TIPCL). METHODS: Charts were reviewed from January 2011 to January 2023 to identify all TICLs and TIPCLs implanted by a single surgeon. Implant size was generally chosen according to the manufacturer's recommendation, but 15 TIPCLs 0.25 mm larger than recommended to increase vaulting were included. RESULTS: Eighty-four TICLs and 98 TIPCLs were identified and yielded excellent refractive and visual results in eyes with high myopic astigmatism at the last follow-up visit...
July 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37449508/corneal-biomechanical-evaluation-after-meniscus-shaped-stromal-lenticule-addition-keratoplasty-ms-slak-for-keratoconus
#82
JOURNAL ARTICLE
Emilio Pedrotti, Erika Bonacci, Adriano Fasolo, Rosa Longo, Giovanlorenzo Pastore, Riccardo Vinciguerra, Paolo Vinciguerra, Giorgio Marchini
PURPOSE: To evaluate corneal biomechanical changes after meniscus-shaped stromal lenticule addition keratoplasty (MS-SLAK) performed for the treatment of keratoconus. METHODS: This interventional study included patients affected by advanced keratoconus (stage III and IV) who underwent examination with a dynamic Scheimpflug analyzer and non-contact tonometer (Corvis ST; Oculus Optikgeräte GmbH) at baseline and 12 months after MS-SLAK. The biomechanical parameters evaluated in this study were integrated inverse radius (1/R), deformation amplitude ratio (DA ratio), stiffness parameter at first applanation (SP-A1), biomechanical intraocular pressure (bIOP), central corneal thickness (CCT), and stress-strain index (SSI)...
July 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37449507/impact-of-corneal-toricity-on-the-distribution-of-corneal-epithelial-thickness
#83
JOURNAL ARTICLE
Jiafan Zhang, Sai Liu, Ting Shao, Hua Li, Huifeng Wang, Keli Long
PURPOSE: To investigate the impact of corneal toricity on the distribution characteristics of corneal epithelial thickness (CET). METHODS: A total of 330 eyes in 330 healthy participants were included in this study. They were divided into two groups based on the median of the corneal toricity value: low-toricity group (corneal toricity < 1.50 diopters) and high-toricity group (corneal toricity ≥ 1.50 diopters). The CET within a 9-mm-diameter area of the central cornea was obtained using optical coherence tomography...
July 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37449506/analysis-of-wavefront-data-obtained-with-a-pyramidal-sensor-in-pseudophakic-eyes-implanted-with-diffractive-intraocular-lenses
#84
JOURNAL ARTICLE
Miguel Faria-Ribeiro, José Manuel González-Méijome, Maria Isabel Pinho Ferreira, Anabela Ferreira Morais-Borges, José Salgado-Borges
PURPOSE: To investigate the clinical validity of using wavefront measurements obtained with a recently available pyramidal aberrometer to assess the optical quality of eyes implanted with diffractive intraocular lenses (IOLs). METHODS: Individual biometric data were used to create models of pseudophakic eyes implanted with two diffractive IOLs. Their synthetic wavefronts were calculated by ray-tracing with near infrared wavelength (0.85 μm). Comparisons of the through-focus visual acuity of 12 pseudophakic eyes were obtained with three different methods: clinical defocus curves; simulated defocus curves calculated from ray-tracing in the customized model eyes; and through-focus simulated defocus curves calculated from the wavefront data measured with a pyramidal aberrometer...
July 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37449505/epithelial-thickness-mapping-in-keratoconic-corneas-repeatability-and-agreement-between-cso-ms-39-heidelberg-anterion-and-optovue-avanti-oct-devices
#85
JOURNAL ARTICLE
Yue Feng, Dan Z Reinstein, Tore Nitter, Timothy J Archer, Colm McAlinden, Geir Bertelsen, Aleksandar Stojanovic
PURPOSE: To assess repeatability and agreement of corneal epithelial thickness mapping in eyes with keratoconus using three optical coherence tomography (OCT) devices featuring different technologies: spectral-domain (SD) OCT combined with Placido disk corneal topography (MS-39), swept-source OCT (Anterion), and SD-OCT (Avanti). METHODS: Three consecutive measurements were acquired with the three devices in 60 eyes with keratoconus. The mean epithelial thickness was calculated in the central 2-mm zone and in 2- to 5-mm and 5- to 7-mm diameter rings...
July 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37449504/evaluation-of-the-performance-of-two-nomograms-and-four-vault-prediction-formulas-for-implantable-collamer-lens-size-selection
#86
JOURNAL ARTICLE
Chuhao Tang, Tong Sun, Hongyu Duan, Yilin Liu, Hong Qi
PURPOSE: To evaluate the performance of different nomograms and vault prediction formulas in predicting the optimal Implantable Collamer Lens (ICL; STAAR Surgical) size and vault. METHODS: This retrospective study included 108 participants (214 eyes) who underwent ICL implantation. The efficacy of the manufacturer's nomogram, Parkhurst nomogram, NK formula, KS formula, Zhu formula, and ZZ formula was assessed by comparing the indicated ICL sizes to the postoperative vault measurements...
July 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37449503/laboratory-evaluation-of-optical-performance-of-aspheric-monofocal-intraocular-lenses-with-various-anti-misalignment-designs-under-the-influence-of-decentration-and-tilt
#87
JOURNAL ARTICLE
Zhichao Ren, Xiaomin Liu, Ying Zhang, Wenfeng Li, Yusen Huang
PURPOSE: To assess the effectiveness and characteristics of aspheric monofocal intraocular lenses (IOLs) with different anti-misalignment designs. METHODS: Three types of anti-misalignment IOLs (with aspheric balance curve design, ZO optic design, and high-order optical aspheric surface design) and no anti-misalignment IOLs were involved. From each type of these IOLs, +8.00, +17.00, and +26.00 diopter (D) lenses were used for detection at the 3- and 4.5-mm apertures...
July 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306206/transient-light-sensitivity-syndrome-tlss-incidence-following-femtosecond-lasik-for-myopic-and-hyperopic-eyes-and-femtosecond-smile-for-myopic-eyes
#88
JOURNAL ARTICLE
Dan Z Reinstein, Joseph G Potter, Ruchi Gupta, Robert Yammouni, Timothy J Archer
PURPOSE: To evaluate and compare the incidence of transient light sensitivity syndrome (TLSS) after myopic laser in situ keratomileusis (LASIK), hyperopic LASIK, and myopic small incision lenticule extraction (SMILE). METHODS: A retrospective analysis was performed of consecutive LASIK and myopic SMILE cases, performed with the VisuMax femtosecond laser and MEL 80 or MEL 90 excimer laser (both Carl Zeiss Meditec AG) between January 2010 and February 2021 at London Vision Clinic, London, United Kingdom...
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306205/the-importance-of-a-correct-preliminary-sample-size-calculation-to-have-reliable-results-in-astigmatism-analysis-studies
#89
LETTER
Ferdinando Cione, Martina De Luca, Aniello La Marca
No abstract text is available yet for this article.
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306204/influencing-factors-of-glare-in-patients-with-myopia-after-small-incision-lenticule-extraction
#90
JOURNAL ARTICLE
Wuxiao Zhao, Jifang Wang, Dan Fu, Yangyi Huang, Tian Han, Xingtao Zhou, Jing Zhao
PURPOSE: To investigate influencing factors of glare in patients with myopia after small incision lenticule extraction (SMILE). METHODS: Thirty patients (60 eyes) aged 24.9 ± 4.5 years with spherical equivalent of -6.69 ± 1.10 diopters (D) and astigmatism of -1.25 ± 0.76 D who underwent SMILE were consecutively recruited in this prospective study. Visual acuity, subjective refraction, Pentacam corneal topography (Oculus Optikgeräte GmbH), pupillometry, and glare test (Monpack One; Metrovision) were measured preoperatively and postoperatively...
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306203/pharmacological-accommodative-changes-of-the-anterior-segment-and-its-impact-on-the-vault-in-implantable-collamer-lens-implantation
#91
JOURNAL ARTICLE
Mingrui Cheng, Shengtao Liu, Xun Chen, Xiaodong Zhou, Xingtao Zhou, Xiaoying Wang
PURPOSE: To estimate the accommodative changes of the anterior segment and its impact on the central and peripheral vaults after Visian Implantable Collamer Lens (ICL) (STAAR Surgical) implantation. METHODS: Eighty eyes of 40 consecutive patients (mean age: 28.05 years; range: 19 to 42 years) were examined 3 months after ICL implantation. Eyes were randomly divided into a mydriasis group and a miosis group. Anterior chamber depth (ACD) to crystalline lens (ACD-L), anterior chamber depth to ICL (ACD-ICL), central distance from endothelium to sulcus to sulcus (ASL), central distance from sulcus to sulcus to crystalline lens (STS-L), central distance from ICL to sulcus to sulcus (STS-ICL), and central (cICL-L), midperipheral (mICL-L), and peripheral (pICL-L) vaults were measured by ultrasound biomicroscopy at baseline and after induction with tropicamide or pilocarpine...
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306202/sequential-custom-therapeutic-keratectomy-for-the-treatment-of-granular-corneal-dystrophy-type-1-a-long-term-study
#92
JOURNAL ARTICLE
Fabrizio I Camesasca, Riccardo Vinciguerra, Emanuela F Legrottaglie, Emanuela Morenghi, Silvia Trazza, Paolo Vinciguerra
PURPOSE: To evaluate the effectiveness of sequential custom phototherapeutic keratectomy (SCTK) for granular corneal dystrophy type 1 (GCD1). METHODS: Thirty-seven eyes of 21 patients with GCD1 were treated with SCTK to remove superficial opacifications, regularize the corneal surface, and decrease optical aberrations. SCTK is a sequence of custom therapeutic excimer laser keratectomies with step-by-step intraoperative corneal topography monitoring of results. Six eyes of 5 patients previously treated with penetrating keratoplasty received SCTK for disease recurrence...
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306201/incidence-of-microfolds-using-a-standardized-three-stage-lasik-flap-replacement-protocol
#93
JOURNAL ARTICLE
Dan Z Reinstein, Ruchi Gupta, Timothy J Archer, Joseph G Potter, Alexander C Day
PURPOSE: To describe a standardized three-stage flap replacement protocol and report the incidence of microfolds after femtosecond laser-assisted laser in situ keratomileusis (LASIK) surgery. METHODS: A retrospective analysis of 14,374 consecutive LASIK procedures with the VisuMax femtosecond laser (Carl Zeiss Meditec) by two surgeons was conducted. As per the standardized procedure, all eyes underwent the three-stage flap replacement protocol consisting of controlled standardized minimal irrigation and flap repositioning after ablation, followed by fluorescein-controlled slit-lamp adjustments and slit-lamp adjustments on day 1 (if required)...
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306200/analysis-of-posterior-corneal-surgically-induced-astigmatism-following-cataract-surgery-with-a-1-8-mm-temporal-clear-corneal-incision
#94
JOURNAL ARTICLE
Jack X Kane, Benjamin R LaHood, Michael Goggin
PURPOSE: To determine posterior corneal surgically induced astigmatism (SIA) when using a temporal clear corneal incision and the IOLMaster 700 (Carl Zeiss Meditec AG) for biometric measurements and to determine whether posterior corneal SIA can be predicted from preoperative data. METHODS: A total of 258 consecutive eyes of 258 patients underwent cataract surgery with a 1.8-mm temporal clear corneal incision. Biometry measurements were taken preoperatively and 6 weeks postoperatively using the IOLMaster 700...
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306199/rotational-stability-of-a-new-progressive-toric-hydrophobic-intraocular-lens-with-gradually-decreasing-cylinder-power
#95
MULTICENTER STUDY
Giacomo Savini, Alessandro Mularoni, Ettore Destro, Piero Barboni, Domenico Schiano-Lomoriello
PURPOSE: To investigate the rotational stability of a new hydrophobic C-loop one-piece toric intraocular lens (IOL). METHODS: In this retrospective multicenter case series, the Avansee Preload1P Toric Clear (Kowa Co Ltd) was implanted using a digital marking system. Its orientation was assessed with retroillumination photographs at 1 hour, 1 day, 1 week, 1 month, 3 months, and 6 months. The mean rotation at each follow-up examination and percentage of eyes with a rotation within 5° and 10° were recorded...
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306198/reply-the-importance-of-a-correct-preliminary-sample-size-calculation-to-have-reliable-results-in-astigmatism-analysis-studies
#96
JOURNAL ARTICLE
Charles-Henry Rémignon, Antoine Levron, Corinne Dot
No abstract text is available yet for this article.
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37306197/precision-of-corneal-aberrations-measured-by-a-new-sd-oct-placido-topographer-and-its-agreement-with-a-scheimpflug-placido-topographer
#97
JOURNAL ARTICLE
Rui Ning, Lingling Niu, Wenqian Xing, Ting Wan, Xiaomin Huang, Jinxuan Xiahou, Yiran Wang, Giacomo Savini, Domenico Schiano-Lomoriello, Xingtao Zhou, Xiaoying Wang, Jinhai Huang
PURPOSE: To evaluate the precision of corneal aberrations measured by a new SD-OCT/Placido topographer, the MS-39 (CSO), and to compare them with those provided by a Scheimpflug/Placido device, the Sirius (CSO), in normal eyes. METHODS: This study enrolled 90 normal eyes of 90 patients. Total root mean square (RMS), higher order RMS, coma, trefoil, spherical aberration, and astigmatism II were analyzed. The within-subject standard deviation (Sw ), test-retest repeatability, and intraclass correlation coefficient (ICC) were calculated to assess the precision...
June 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37162401/the-non-uniform-distribution-of-horizontal-and-vertical-crystalline-lens-rise-using-optical-coherence-tomography
#98
JOURNAL ARTICLE
Limin Fan, Zheng Chang, Yangtao Xu, Xinkai Yin, Zheng Wang
PURPOSE: To observe the crystalline lens rise (CLR) in horizontal and vertical orientations using anterior segment optical coherence tomography (AS-OCT). METHODS: Non-invasive swept-source AS-OCT was used to measure the lens thickness, CLR, and angle-to-angle distance (ATA) in both the horizontal and vertical orientations. Anterior chamber depth (ACD) and horizontal white-to-white corneal diameter were obtained using the Pentacam HR (Oculus Optikgeräte GmbH)...
May 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37162400/prediction-of-implantable-collamer-lens-vault-based-on-preoperative-biometric-factors-and-lens-parameters
#99
RANDOMIZED CONTROLLED TRIAL
Yu Di, Ying Li, Yan Luo
PURPOSE: To establish and validate the accuracy of implantable collamer lens (ICL) vault size prediction formula based on preoperative biometric factors and lens parameters. METHODS: This study included 300 patients (300 eyes) with Visian ICL V4c (STAAR Surgical) implantation. They were randomly divided into the formula establishment group and formula validation group. Anterior segment measurements, ICL V4c size and power, and vault 1 week postoperatively were collected from all patients...
May 2023: Journal of Refractive Surgery
https://read.qxmd.com/read/37162399/refractive-and-visual-outcomes-of-smile-for-compound-myopic-astigmatism-with-the-visumax-800
#100
JOURNAL ARTICLE
Dan Z Reinstein, Timothy J Archer, Joseph G Potter, Ruchi Gupta, Rainer Wiltfang
PURPOSE: To report the first refractive and visual outcomes of small incision lenticule extraction (SMILE) using the VISUMAX 800 femtosecond laser (Carl Zeiss Meditec AG). METHODS: This was a retrospective analysis of consecutive eyes treated by SMILE using the VISUMAX 800 femtosecond laser at London Vision Clinic, EuroEyes Group, London, United Kingdom. Inclusion criteria were patients aged younger than 45 years, a corrected distance visual acuity (CDVA) of 20/20 or better, and the 3-month postoperative timepoint data being available for analysis...
May 2023: Journal of Refractive Surgery
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