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Ophthalmic surgery simulator

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https://www.readbyqxmd.com/read/27071862/twelve-tips-for-postgraduate-or-undergraduate-medics-building-a-basic-microsurgery-simulation-training-course
#1
Katrina A Mason, Evgenia Theodorakopoulou, Georgios Pafitanis, Ali M Ghanem, Simon R Myers
Microsurgery is used in a variety of surgical specialties, including Plastic Surgery, Maxillofacial Surgery, Ophthalmic Surgery, Otolaryngology and Neurosurgery. It is considered one of the most technically challenging fields of surgery. Microsurgical skills demand fine, precise and controlled movements, and microsurgical skill acquisition has a steep initial learning curve. Microsurgical simulation provides a safe environment for skill acquisition before operating clinically. The traditional starting point for anyone wanting to pursue microsurgery is a basic simulation training course...
September 2016: Medical Teacher
https://www.readbyqxmd.com/read/26705060/a-self-directed-preclinical-course-in-ophthalmic-surgery
#2
Dominic J Wu, Paul B Greenberg
OBJECTIVE: Medical students receive limited exposure to ophthalmology and ophthalmic surgery in the preclinical curriculum. To address this gap, the authors designed a self-directed preclinical elective course in ophthalmic surgery offered in the 2013-2014 academic year to all first- and second-year students at the study institution. DESIGN: Prospective cohort study with anonymous Likert-style questionnaires and qualitative responses. SETTING: Warren Alpert Medical School of Brown University, Providence, RI...
May 2016: Journal of Surgical Education
https://www.readbyqxmd.com/read/26703308/corneal-endothelium-self-healing-mathematical-model-after-inadvertent-descemetorhexis
#3
Rémy Jullienne, Pierre Manoli, Théophile Tiffet, Zhiguo He, Klervi Rannou, Gilles Thuret, Philippe Gain
UNLABELLED: An 85-year-old man presented with an unusual complication of cataract surgery. During injection of an ophthalmic viscosurgical device, Descemet membrane was accidentally dissected and removed during the capsulorhexis. Early postoperative visual acuity was counting fingers as a result of massive corneal edema. Using a mathematical model of the endothelium, we evaluated the corneal endothelial cell self-healing capacity from the periphery by calculating the theoretical endothelial cell density (ECD) after corneal endothelial cell redistribution...
October 2015: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/26431303/use-of-the-toric-surgical-marker-to-aid-in-intraoperative-plaque-placement-for-the-usc-eye-physics-plaques-to-treat-uveal-melanoma-a-new-surgical-technique
#4
Jesse L Berry, Jonathan W Kim, Richard Jennelle, Melvin Astrahan
BACKGROUND AND OBJECTIVE: To describe a new surgical technique for intraoperative placement of Eye Physics (EP) plaques for uveal melanoma using a toric marker. PATIENTS AND METHODS: A toric marker is designed for cataract surgery to align the axis of astigmatism; its use was modified in this protocol to mark the axis of suture coordinates as calculated by Plaque Simulator (PS) software. RESULTS: The toric marker can be used to localize suture coordinates, in degrees, during intraoperative plaque placement...
September 2015: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/26290778/evaluating-red-reflex-and-surgeon-preference-between-nearly-collimated-and-focused-beam-microscope-illumination-systems
#5
Robert J Cionni, Ron Pei, Ramon Dimalanta, David Lubeck
PURPOSE: To evaluate the intensity and stability of the red reflex produced by ophthalmic surgical microscopes with nearly-collimated versus focused illumination systems and to assess surgeon preference in a simulated surgical setting. METHODS: This two-part evaluation consisted of postproduction surgical video analysis of red reflex intensity and a microscope use and preference survey completed by 13 experienced cataract surgeons. Survey responses were based on bench testing and experience in a simulated surgical setting...
August 2015: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/26221856/morphological-characteristics-of-the-sphenoid-sinus-and-endoscopic-localization-of-the-cavernous-sinus
#6
Youxiong Yang, Guowen Zhan, Jianchun Liao, Ruishan Dang, Hongli Wang, Yang Li, Xiaote Zhang
The aim of this study was to investigate the relationship between the morphological characteristics of the sphenoid sinus and endoscopic localization of the cavernous sinus (CS) using an extended endoscopic endonasal transsphenoidal approach. Thirty sides of CS in 15 adult cadaver heads were dissected to simulate the extended endoscopic endonasal transsphenoidal approach, and the morphology of the sphenoid sinus and anatomic structures of CS were observed. The opticocarotid recess (OCR), ophthalmomaxillary recess (V1V2R), and maxillomandibular recess (V2V3R) in the lateral wall of the sphenoid sinus were presented in 16 sides (53...
September 2015: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/25864793/update-on-simulation-based-surgical-training-and-assessment-in-ophthalmology-a-systematic-review
#7
REVIEW
Ann Sofia S Thomsen, Yousif Subhi, Jens Folke Kiilgaard, Morten la Cour, Lars Konge
TOPIC: This study reviews the evidence behind simulation-based surgical training of ophthalmologists to determine (1) the validity of the reported models and (2) the ability to transfer skills to the operating room. CLINICAL RELEVANCE: Simulation-based training is established widely within ophthalmology, although it often lacks a scientific basis for implementation. METHODS: We conducted a systematic review of trials involving simulation-based training or assessment of ophthalmic surgical skills among health professionals...
June 2015: Ophthalmology
https://www.readbyqxmd.com/read/25722080/simulation-based-certification-for-cataract-surgery
#8
Ann Sofia Skou Thomsen, Jens Folke Kiilgaard, Hadi Kjaerbo, Morten la Cour, Lars Konge
PURPOSE: To evaluate the EyeSi(™) simulator in regard to assessing competence in cataract surgery. The primary objective was to explore all simulator metrics to establish a proficiency-based test with solid evidence. The secondary objective was to evaluate whether the skill assessment was specific to cataract surgery. METHODS: We included 26 ophthalmic trainees (no cataract surgery experience), 11 experienced cataract surgeons (>4000 cataract procedures) and five vitreoretinal surgeons...
August 2015: Acta Ophthalmologica
https://www.readbyqxmd.com/read/25720839/malignant-glaucoma-like-syndrome-after-ex-press-filtration-surgery
#9
Giamberto Casini, Pasquale Loiudice, Paolo Martinelli, Francesco Nasini, Marco Nardi
PURPOSE: To report a case of postsurgical shallow anterior chamber and elevated intraocular pressure (IOP) simulating malignant glaucoma. METHODS: A 20-year-old woman underwent EX-PRESS® device implant for treatment of primary open-angle glaucoma. RESULTS: Postoperative examination showed a shallow anterior chamber, the EX-PRESS® device embedded in the iris, an IOP of 28 mm Hg, and an annular detachment of the choroid ciliary body, suggesting hyperfiltration followed by EX-PRESS® blockage...
July 2015: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/25698703/comparing-the-mode-of-action-of-intraocular-lutein-based-dyes-with-synthetic-dyes
#10
COMPARATIVE STUDY
Diogo Sousa-Martins, Luciano Caseli, Mafalda C Figueiredo, Claudia Sa E Cunha, Helder Mota-Filipe, Acácio Souza-Lima, Rubens Belfort, Eduardo Rodrigues, Mauricio Maia
PURPOSE: To investigate and compare the mechanism by which lutein-based and synthetic intraocular dyes interact with their target membranes during ophthalmic surgeries. METHODS: Surrogate membrane models were used in order to simulate the different intraocular membranes: internal limiting membrane (ILM), vitreous, anterior capsule (AC), and epiretinal membrane (ERM). Different lutein-based dyes, such as Phacodyne, Retidyne, Retidyne Plus, and Vitreodyne were tested, as well as Trypan Blue (TB), Indocyanine Green (ICG), Brilliant Blue (BB), and Triamcinolone Acetonide (TA)...
March 2015: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/25136619/comparison-of-reaction-response-time-between-hand-and-foot-controlled-devices-in-simulated-microsurgical-testing
#11
Marcel Pfister, Jaw-Chyng L Lue, Francisco R Stefanini, Paulo Falabella, Laurie Dustin, Michael J Koss, Mark S Humayun
PURPOSE: We hypothesized that reaction times (RTs) for a switch release are faster for hand-controlled than for foot-controlled switches for physiological and anatomical reasons (e.g., nerve conduction speed). The risk of accidental trauma could be reduced if the surgeon reacted quicker and therefore improve the surgical outcome. METHOD: We included 47 medical professionals at USC. Demographics and handedness were recorded. Under a microscope, a simple reaction time test was performed, testing all extremities multiple times in a random order...
2014: BioMed Research International
https://www.readbyqxmd.com/read/24955637/control-of-scar-tissue-formation-in-the-cornea-strategies-in-clinical-and-corneal-tissue-engineering
#12
Samantha L Wilson, Alicia J El Haj, Ying Yang
Corneal structure is highly organized and unified in architecture with structural and functional integration which mediates transparency and vision. Disease and injury are the second most common cause of blindness affecting over 10 million people worldwide. Ninety percent of blindness is permanent due to scarring and vascularization. Scarring caused via fibrotic cellular responses, heals the tissue, but fails to restore transparency. Controlling keratocyte activation and differentiation are key for the inhibition and prevention of fibrosis...
2012: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/24612448/establishment-of-a-validated-training-programme-on-the-eyesi-cataract-simulator-a-prospective-randomized-study
#13
RANDOMIZED CONTROLLED TRIAL
Joel Bergqvist, Anna Person, Anders Vestergaard, Jakob Grauslund
PURPOSE: To establish and evaluate a systematic training programme to be included into the ophthalmologic resident curriculum. METHODS: Medical students (n = 20) within a year from graduation and with no previous ophthalmic experience were included in this prospective study and randomized into two groups. Group A (n = 10) completed the Eyesi cataract simulator training programme once a week for 4 weeks, while Group B (n = 10) completed it once a week at the first and the last week...
November 2014: Acta Ophthalmologica
https://www.readbyqxmd.com/read/24326393/aneurysmal-remodeling-in-the-circle-of-willis-after-carotid-occlusion-in-an-experimental-model
#14
Vincent M Tutino, Max Mandelbaum, Hoon Choi, Liza C Pope, Adnan Siddiqui, John Kolega, Hui Meng
Carotid occlusions are associated with de novo intracranial aneurysm formation in clinical case reports, but this phenomenon is not widely studied. We performed bilateral carotid ligation (n=9) in rabbits to simulate carotid occlusion, and sham surgery (n=3) for control. Upon euthanasia (n=3 at 5 days, n=6 at 6 months post ligation, and n=3 at 5 days after sham operation), vascular corrosion casts of the circle of Willis (CoW) were created. Using scanning electron microscopy, we quantified gross morphologic, macroscopic, and microscopic changes on the endocasts and compared findings with histologic data...
March 2014: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/24246807/-preliminary-study-of-microanatomy-of-cadaver-skulls-related-to-lateral-orbital-approach-operation
#15
Huan Yan, Yi Wang, Li-hua Xiao
OBJECTIVE: To study the microanatomy of cadaver skulls related to lateral orbital approach operation. Microanatomy data were recorded and analyzed by multi-angle digital camera. METHODS: Experimental study. Five adult formalin-fixed cadaver skulls were examined, simulating the lateral orbital approach procedure, the optic nerve, oculomotor nerve, ophthalmic artery, superior ophthalmic vein and various levels anatomical structures and adjacent regions were dissected and examined on both sides of each specimen under surgical microscope...
August 2013: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/24232944/assessment-of-pupillary-influence-in-lasik-patients-using-a-digital-pupillometer-and-vqf-25-questionnaire
#16
Eduardo Marcelo Moron de Andrade, Wallace Chamon
PURPOSE: Identify ideal profiles in patients undergoing to photorefractive laser surgery with the aid of an automated pupillometry and psychometric analysis of patients with visual function questionnaire (VQF 25). METHODS: Seventy-seven patients undergoing photorefractive laser surgery laser (LASIK) were analyzed with the aid of an automated digital pupillometer based on an infrared camera coupled to the optical head of a videokeratography system. Patients underwent complete ophthalmic evaluation and documentation of the pupillary behavior under different intensities of illumination, simulating situations of everyday life...
October 2013: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/23796766/ophthalmic-surgery-simulator-training-improves-resident-performance-of-capsulorhexis-in-the-operating-room
#17
Colin A McCannel, David C Reed, Darin R Goldman
PURPOSE: To assess the effect of a Capsulorhexis Intensive Training Curriculum (CITC) on the rates of errant, continuous, curvilinear capsulorhexes (CCCs) during cataract surgery among resident surgeons at a teaching hospital. DESIGN: Retrospective educational interventional case series. PARTICIPANTS AND CONTROLS: A total of 1037 consecutive cataract surgeries performed at Harbor-UCLA Medical Center during 4 consecutive academic years were considered...
December 2013: Ophthalmology
https://www.readbyqxmd.com/read/23477278/a-novel-preclinical-course-in-ophthalmology-and-ophthalmic-virtual-surgery
#18
Jennifer J Yong, Michael E Migliori, Paul B Greenberg
No abstract text is available yet for this article.
November 2012: Medicine and Health, Rhode Island
https://www.readbyqxmd.com/read/23329663/auditory-force-feedback-substitution-improves-surgical-precision-during-simulated-ophthalmic-surgery
#19
COMPARATIVE STUDY
Nathan Cutler, Marcin Balicki, Mark Finkelstein, Jiangxia Wang, Peter Gehlbach, John McGready, Iulian Iordachita, Russell Taylor, James T Handa
PURPOSE: To determine the extent that auditory force feedback (AFF) substitution improves performance during a simulated ophthalmic peeling procedure. METHODS: A 25-gauge force-sensing microforceps was linked to two AFF modes. The "alarm" AFF mode sounded when the force reached 9 mN. The "warning" AFF mode made beeps with a frequency proportional to the generated force. Participants with different surgical experience levels were asked to peel a series of bandage strips off a platform as quickly as possible without exceeding 9 mN of force...
February 2013: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/23084362/safety-of-nondominant-hand-ophthalmic-surgery
#20
Jonathan Park, Olayinka Williams, Salman Waqar, Neil Modi, Thomas Kersey, Tamsin Sleep
PURPOSE: To establish the safety of nondominant-hand simulated intraocular surgery. SETTING: Horizon Suite Simulation Centre, South Devon Foundation NHS Trust, Devon, United Kingdom. DESIGN: Cohort study. METHODS: Physicians with no previous ophthalmic surgical experience completed an introductory program on the EyeSi ophthalmic surgical simulator to eliminate the learning curve. They then completed the validated level-4 forceps module 4 times with their dominant hand and then 4 times with their nondominant hand...
December 2012: Journal of Cataract and Refractive Surgery
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