Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 33
Filtrar
1.
Curr Opin Ophthalmol ; 34(5): 431-436, 2023 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-37459295

RESUMEN

PURPOSE OF REVIEW: The Future Vision Forum discussed the current state of Human Centered Computing and the future of data collection, curation, and collation in ophthalmology. Although the uptake of electronic health record (EHR) systems and the digitization of healthcare data is encouraging, there are still barriers to implementing a specialty-wide clinical trial database. The article identifies several critical opportunities, including the need for standardization of image metadata and data, the establishment of a centralized trial database, incentives for clinicians and trial sponsors to participate, and resolving ethical concerns surrounding data ownership. FINDINGS: Recommendations to overcome these challenges include the standardization of image metadata using the Digital Imaging and Communications in Medicine (DICOM) guidelines, the establishment of a centralized trial database that uses federated learning (FL), and the use of FL to facilitate cross-institutional collaboration for rare diseases. Forum faculty suggests incentives will accelerate artificial intelligence, digital innovation projects, and data sharing agreements to empower patients to release their data. SUMMARY: A specialty-wide clinical trial database could provide invaluable insights into the natural history of disease, pathophysiology, why trials fail, and improve future clinical trial design. However, overcoming the barriers to implementation will require continued discussion, collaboration, and collective action from stakeholders across the ophthalmology community.


Asunto(s)
Inteligencia Artificial , Oftalmología , Humanos
2.
Asia Pac J Ophthalmol (Phila) ; 11(3): 247-257, 2022 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-34923521

RESUMEN

ABSTRACT: Optical coherence tomography (OCT) is an invaluable imaging tool in detecting and assessing diabetic macular edema (DME). Over the past decade, there have been different proposed OCT-based classification systems for DME. In this review, we present an update of spectral-domain OCT (SDOCT)-based DME classifications over the past 5 years. In addition, we attempt to summarize the proposed OCT qualitative and quantitative parameters from different classification systems in relation to disease severity, risk of progression, and treatment outcome. Although some OCT-based measurements were found to have prognostic value on visual outcome, there has been a lack of consensus or guidelines on which parameters can be reliably used to predict treatment outcomes. We also summarize recent literatures on the prognostic value of these parameters including quantitative measures such as macular thickness or volume, central subfield thickness or foveal thickness, and qualitative features such as the morphology of the vitreoretinal interface, disorganization of retinal inner layers, ellipsoid zone disruption integrity, and hyperreflec-tive foci. In addition, we discuss that a framework to assess the validity of biomarkers for treatment outcome is essentially important in assessing the prognosis before deciding on treatment in DME. Finally, we echo with other experts on the demand for updating the current diabetic retinal disease classification.


Asunto(s)
Diabetes Mellitus , Retinopatía Diabética , Edema Macular , Retinopatía Diabética/complicaciones , Retinopatía Diabética/diagnóstico por imagen , Humanos , Edema Macular/diagnóstico por imagen , Retina/diagnóstico por imagen , Estudios Retrospectivos , Tomografía de Coherencia Óptica/métodos , Resultado del Tratamiento
3.
Asia Pac J Ophthalmol (Phila) ; 10(6): 521-529, 2021 Nov 24.
Artículo en Inglés | MEDLINE | ID: mdl-34839344

RESUMEN

ABSTRACT: The coronavirus disease 2019 (COVID-19) came under the attention of the international medical community when China first notified the World Health Organization of a pneumonia outbreak of then-unknown etiology in Wuhan in December 2019. Since then, COVID-19 caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has appalled the world by spreading at a pandemic speed. Although ophthalmologists do not directly engage in the clinical care of COVID-19 patients, the ophthalmology community has become aware of the close ties between its practice and the pandemic. Not only are ophthalmologists at heightened risk of SARS-CoV-2 exposure due to their physical proximity with patients in routine ophthalmic examinations, but SARS-CoV-2 possesses ocular tropism resulting in ocular complications beyond the respiratory tract after viral exposure. Furthermore, patients could potentially suffer from adverse ocular effects in the therapeutic process. This review summarized the latest literature to cover the ophthalmic manifestations, effects of treatments, and vaccinations on the eye to aid the frontline clinicians in providing effective ophthalmic care to COVID-19 patients as the pandemic continues to evolve.


Asunto(s)
COVID-19 , Oftalmólogos , Humanos , Pandemias , SARS-CoV-2 , Vacunación/efectos adversos
7.
Glob Public Health ; 15(10): 1582-1587, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32787510

RESUMEN

The death toll of the coronavirus disease 2019 (COVID-19) sparked much controversy since its advent in December 2019. Underestimation because of under testing and deaths happening outside the hospitals were important causes. Bold revisions of the diagnostic criteria leading to dramatic changes in death tolls by different governments were observed in attempts to generate more accurate estimates. On the other hand, the influence, censorship and manipulation on case and death data from top political leaders of some countries could create important impacts on the death toll. Baseline mortality data of previous years may help make more accurate estimates of the actual death toll. The pitfalls and strategies during such processes could become valuable lessons to leaders and policymakers worldwide as more accurate statistics serve to navigate policies to combat this pandemic in the days and months to come.


Asunto(s)
Infecciones por Coronavirus/mortalidad , Exactitud de los Datos , Neumonía Viral/mortalidad , Betacoronavirus , COVID-19 , Humanos , Pandemias , SARS-CoV-2
8.
Asia Pac J Ophthalmol (Phila) ; 9(4): 281-284, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32739937

RESUMEN

The World Health Organization declared the Coronavirus Disease 2019 (COVID-19) caused by Severe Acute Respiratory Syndrome Coronavirus 2 a "Pandemic" on March 11, 2020. As of June 1, 2020, Severe Acute Respiratory Syndrome Coronavirus 2 has infected >6.2 million people and caused >372,000 deaths, including many health care personnel. It is highly infectious and ophthalmologists are at a higher risk of the infection due to a number of reasons including the proximity between doctors and patients during ocular examinations, microaerosols generated by the noncontact tonometer, tears as a potential source of infection, and some COVID-19 cases present with conjunctivitis. This article describes the ocular manifestations of COVID-19 and the APAO guidelines in mitigating the risks of contracting and/or spreading COVID-19 in ophthalmic practices.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/epidemiología , Transmisión de Enfermedad Infecciosa/prevención & control , Oftalmopatías/epidemiología , Neumonía Viral/epidemiología , Guías de Práctica Clínica como Asunto , Sociedades Médicas , COVID-19 , Infecciones por Coronavirus/transmisión , Humanos , Pandemias , Neumonía Viral/transmisión , SARS-CoV-2
9.
Asia Pac J Ophthalmol (Phila) ; 9(3): 180-185, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32501897

RESUMEN

Ophthalmology has been at the forefront of many innovations in basic science and clinical research. The randomized prospective multicenter clinical trial, comparative clinical trials, the bench to beside development of diagnostic and therapeutic devices, the powerful combination of biostatistics and epidemiology, gene therapy, cell-based therapy, stem cell therapy, regenerative medicine, artificial intelligence, and the development of personalized molecular medicine continue to propel us forward. This article summarizes several critical trends in eye research.Innovative translational research continues to bring new solutions to blinding retinal diseases. The discovery of the genetic code presaged a day when the development of molecular tools and understanding of the basis of disease would lead not only to disease management but potentially lifelong cure. After decades of investigation, gene therapy is now a reality for a single autosomal recessive bi-allelic disease, Lebers Congenital Amaurosis. Its success has paved the way for a myriad of conditions once thought to be untreatable. In parallel, the progress to utilize pluripotential stem cells, immunomodulation, computational biology, and continued investigation into the fundamental mechanisms of cell and molecular biology is breathtaking in its rapidity. The next decade is likely to be the most exciting in the history of medicine. It will be essential that research progresses in a meticulously thoughtful, ethical, and collaborative process that safeguards the trust of our work and that of the society we serve.Presented as the International Award Lecture, Asia-Pacific Vitreoretinal Society meeting, November 2019, Shanghai China.


Asunto(s)
Inteligencia Artificial , Investigación Biomédica/tendencias , Terapia Genética/métodos , Oftalmología , Enfermedades de la Retina/terapia , Humanos , Enfermedades de la Retina/genética
11.
Asia Pac J Ophthalmol (Phila) ; 9(2): 67-77, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32349113

RESUMEN

The Coronavirus Disease 2019 (COVID-19), caused by severe acute respiratory coronavirus-2, was first reported in December 2019. The World Health Organization declared COVID-19 a pandemic on March 11, 2020 and as of April 17, 2020, 210 countries are affected with >2,000,000 infected and 140,000 deaths. The estimated case fatality rate is around 6.7%. We need to step up our infection control measures immediately or else it may be too late to contain or control the spread of COVID-19. In case of local outbreaks, the risk of infection to healthcare workers and patients is high. Ophthalmic practice carries some unique risks and therefore high vigilance and special precautions are needed. We share our protocols and experiences in the prevention of infection in the current COVID-19 outbreak and the previous severe acute respiratory syndrome epidemic in Hong Kong. We also endeavor to answer the key frequently asked questions in areas of the coronaviruses, COVID-19, disease transmission, personal protection, mask selection, and special measures in ophthalmic practices. COVID-19 is highly infectious and could be life-threatening. Using our protocol and measures, we have achieved zero infection in our ophthalmic practices in Hong Kong and China. Preventing spread of COVID-19 is possible and achievable.


Asunto(s)
Infecciones por Coronavirus/prevención & control , Control de Infecciones/métodos , Máscaras , Oftalmología/normas , Pandemias/prevención & control , Equipo de Protección Personal , Neumonía Viral/prevención & control , Betacoronavirus , COVID-19 , China , Higiene de las Manos , Hong Kong , Humanos , SARS-CoV-2 , Ventiladores Mecánicos
13.
Retina ; 40(2): 303-311, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31972801

RESUMEN

PURPOSE: To analyze and provide an overview of the incidence, management, and prevention of conjunctival erosion in Argus II clinical trial subjects and postapproval patients. METHODS: This retrospective analysis followed the results of 274 patients treated with the Argus II Retinal Prosthesis System between June 2007 and November 2017, including 30 subjects from the US and European clinical trials, and 244 patients in the postapproval phase. Results were gathered for incidence of a serious adverse event, incidence of conjunctival erosion, occurrence sites, rates of erosion, and erosion timing. RESULTS: Overall, 60% of subjects in the clinical trial subjects versus 83% of patients in the postapproval phase did not experience device- or surgery-related serious adverse events. In the postapproval phase, conjunctival erosion had an incidence rate of 6.2% over 5 years and 11 months. In 55% of conjunctival erosion cases, erosion occurred in the inferotemporal quadrant, 25% in the superotemporal quadrant, and 20% in both. Sixty percent of the erosion events occurred in the first 15 months after implantation, and 85% within the first 2.5 years. CONCLUSION: Reducing occurrence of conjunctival erosion in patients with the Argus II Retinal Prosthesis requires identification and minimization of risk factors before and during implantation. Implementing inverted sutures at the implant tabs, use of graft material at these locations as well as Mersilene rather than nylon sutures, and accurate Tenon's and conjunctiva closure are recommended for consideration in all patients.


Asunto(s)
Conjuntiva/cirugía , Enfermedades de la Conjuntiva/etiología , Complicaciones Posoperatorias/etiología , Implantación de Prótesis/efectos adversos , Retinitis Pigmentosa/cirugía , Prótesis Visuales/efectos adversos , Enfermedades de la Conjuntiva/epidemiología , Enfermedades de la Conjuntiva/prevención & control , Europa (Continente)/epidemiología , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/prevención & control , Implantación de Prótesis/métodos , Estudios Retrospectivos , Estados Unidos/epidemiología
14.
Acta Ophthalmol ; 98(3): e266-e272, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-31736279

RESUMEN

OBJECTIVE: To compare the efficacy and safety of macular buckling and vitrectomy for myopic traction maculopathy showing macular schisis (MS) and associated macular detachment (MD) but without full-thickness macular hole (FTMH). DESIGN: Prospective, randomized, parallel, open-label study. METHODS: Patients were randomly assigned to either buckling or vitrectomy group. Macular buckling and intravitreal C3F8 gas injection were performed in the buckling group. Small gauge vitrectomy, internal limiting membrane peeling (ILMP) and C3F8 gas tamponade were performed in the vitrectomy group. The patients were followed for 12 months. MAIN OUTCOME MEASURES: Best-corrected visual acuity (BCVA) at 12 months. RESULTS: A total of 85 patients were randomized, 80 eyes were included (41 receiving buckling, 39 received vitrectomy), and 78 patients completed the study. There were less eyes determined as surgical failure and required a second surgery in the buckling group than vitrectomy the group (2.4% versus 18.4%, p = 0.021). After surgery, macular buckling achieved more improvement in BCVA (+21.7 versus +4.5 Early Treatment Diabetic Retinopathy Study (ETDRS) letters, p = 0.002). FTMH development was observed in only 1 (2.4%) eye, after removing of the implant due to recurrent conjunctival erosion, in the buckling group and 10 (26.3%) eyes (seven with-, three without MD) in the vitrectomy group (p < 0.001). More eyes developed cataracts in the vitrectomy group than did in the buckling group (28.9% versus 7.5%, p = 0.014). Macular buckling-associated strabismus (esotropia), binocular diplopia and implant exposure were observed in limited cases. CONCLUSIONS AND RELEVANCE: Macular buckling is superior to vitrectomy with ILM peeling plus gas injection for surgical treatment of MS and associated MD in high myopia.


Asunto(s)
Degeneración Macular/cirugía , Miopía Degenerativa/complicaciones , Perforaciones de la Retina/cirugía , Curvatura de la Esclerótica/métodos , Vitrectomía/métodos , Adulto , Femenino , Humanos , Degeneración Macular/etiología , Masculino , Persona de Mediana Edad , Perforaciones de la Retina/etiología , Agudeza Visual
16.
Am J Ophthalmol ; 193: 87-99, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-29940167

RESUMEN

PURPOSE: To assess the retinal anatomy and array position in Argus II retinal prosthesis recipients. DESIGN: Prospective, noncomparative cohort study. METHODS: Setting: International multicenter study. PATIENTS: Argus II recipients enrolled in the Post-Market Surveillance Studies. PROCEDURES: Spectral-domain optical coherence tomography images collected for the Surveillance Studies (NCT01860092 and NCT01490827) were reviewed. Baseline and postoperative macular thickness, electrode-retina distance (gap), optic disc-array overlap, and preretinal membrane presence were recorded at 1, 3, 6, and 12 months. MAIN OUTCOME MEASURES: Axial retinal thickness and axial gap along the array's long axis (a line between the tack and handle); maximal retinal thickness and maximal gap along a B-scan near the tack, midline, and handle. RESULTS: Thirty-three patients from 16 surgical sites in the United States and Germany were included. Mean axial retinal thickness increased from month 1 through month 12 at each location, but reached statistical significance only at the array midline (P = .007). The rate of maximal thickness increase was highest near the array midline (slope = 6.02, P = .004), compared to the tack (slope = 3.60, P < .001) or the handle (slope = 1.93, P = .368). The mean axial and maximal gaps decreased over the study period, and the mean maximal gap size decrease was significant at midline (P = .032). Optic disc-array overlap was seen in the minority of patients. Preretinal membranes were common before and after implantation. CONCLUSIONS: Progressive macular thickening under the array was common and corresponded to decreased electrode-retina gap over time. By month 12, the array was completely apposed to the macula in approximately half of the eyes.


Asunto(s)
Electrodos Implantados , Retina/patología , Retinitis Pigmentosa/cirugía , Prótesis Visuales , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Femenino , Humanos , Internacionalidad , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Implantación de Prótesis/métodos , Retinitis Pigmentosa/fisiopatología , Agudeza Visual/fisiología
18.
Jpn J Ophthalmol ; 62(2): 249-255, 2018 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-29210008

RESUMEN

PURPOSE: To report and discuss a focal oscillopsia in a small area of the visual field produced by, and after the removal of, an epiretinal membrane (ERM) in an individual with infantile nystagmus syndrome (INS) since birth with no associated afferent visual deficits. STUDY DESIGN: A retrospective case report. METHODS: A chart review, including clinical and electrophysiological data. A 74 y/o man with INS and an epiretinal membrane was studied. Detailed studies of the retina post-removal of an epiretinal membrane, with consequent changes in best-corrected visual acuity (BCVA), and subjective oscillopsia compared to INS waveforms. OCT measurements and eye-movement data from digital video and scleral search-coil systems were used. RESULTS: The monocular ERM produced an unexpected focal area of torsional/vertical oscillopsia (noted 1 year prior to the ERM surgery) in the portion of the visual field that corresponded with distortions from the ERM. The remainder of the visual field, corresponding with normal healthy retina was unaffected and stable in all planes. Post-removal, BCVA improved with redevelopment of the foveal pit and focal oscillopsia became less noticeable but remained due to the retinal distortion. CONCLUSIONS: In patients with INS, complete oscillopsia suppression across the visual field requires undistorted vision. If a retinal area of visual distortion develops or results from retinal surgery, a symptomatic island of oscillopsia in one or more planes may result.


Asunto(s)
Membrana Epirretinal/etiología , Movimientos Oculares/fisiología , Nistagmo Patológico/complicaciones , Procedimientos Quirúrgicos Oftalmológicos/métodos , Tomografía de Coherencia Óptica/métodos , Anciano , Membrana Epirretinal/diagnóstico , Membrana Epirretinal/cirugía , Estudios de Seguimiento , Humanos , Masculino , Nistagmo Patológico/diagnóstico , Estudios Retrospectivos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...