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1.
Am J Ophthalmol ; 219: 222-230, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32621894

RESUMO

PURPOSE: The clinic efficiency and cost savings achieved by eliminating formal visual acuity (VA) and dilated fundus examinations (DFEs) were assessed for established patients receiving optical coherence tomography (OCT)-guided intravitreal injections. DESIGN: Comparative cost analysis. METHODS: Two different treatment models were evaluated. The first model included patients undergoing routine VA assessment, DFEs, OCT imaging, and intravitreal injections. The second model eliminated the routine VA assessment and DFE while using OCT imaging through an undilated pupil followed by the intravitreal injection. The 2 models incorporated both bevacizumab and aflibercept. The number of patients per clinic day, the cost per visit, and the daily revenues were compared between the 2 models. RESULTS: Optimized schedules with and without VA assessments and DFEs allowed for 48 and 96 patients to be injected per day, respectively. Excluding drug costs, the cost per encounter for the visits with and without a DFE were $39.33 and $22.63, respectively. Including the drug costs, the costs per encounter for the visits with and without a DFE were $85.55 and $68.85 for bevacizumab and $1787.58 and $17770.88 for aflibercept, respectively. Once the reimbursements for each visit type were included, the clinics that eliminated the VA and DFEs were more cost efficient. CONCLUSION: Eliminating both VA assessments and DFEs for patients undergoing OCT-guided retreatment with intravitreal injections resulted in decreased exposure times between patients and clinic staff, decreased cost per encounter, and increased patient volumes per clinic day, resulting in improved clinic efficiency and safety while seeing more patients in a clinic day.


Assuntos
Inibidores da Angiogênese/uso terapêutico , Neovascularização de Coroide/tratamento farmacológico , Análise Custo-Benefício , Exame Físico/economia , Tomografia de Coerência Óptica/economia , Acuidade Visual , Degeneração Macular Exsudativa/tratamento farmacológico , Idoso , Inibidores da Angiogênese/economia , Bevacizumab/economia , Bevacizumab/uso terapêutico , Neovascularização de Coroide/economia , Redução de Custos/economia , Feminino , Humanos , Injeções Intravítreas , Masculino , Pessoa de Meia-Idade , Midriáticos/administração & dosagem , Pupila/efeitos dos fármacos , Receptores de Fatores de Crescimento do Endotélio Vascular/uso terapêutico , Proteínas Recombinantes de Fusão/economia , Proteínas Recombinantes de Fusão/uso terapêutico , Retratamento , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Degeneração Macular Exsudativa/economia
2.
Ophthalmology ; 127(9): 1259-1267, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32317177

RESUMO

PURPOSE: The purpose of this assessment is to evaluate the accuracy of autorefraction compared with cycloplegic retinoscopy in children. METHODS: Literature searches were last conducted in October 2019 in the PubMed and the Cochrane Library databases for studies published in English. The combined searches yielded 118 citations, of which 53 were reviewed in full text. Of these, 31 articles were deemed appropriate for inclusion in this assessment and subsequently assigned a level of evidence rating by the panel methodologists. Four articles were rated level I, 11 were rated level II, and 16 were rated level III articles. The 16 level III articles were excluded from this review. RESULTS: Thirteen of the 15 studies comparing cycloplegic autorefraction with cycloplegic retinoscopy found a mean difference in spherical equivalent or sphere of less than 0.5 diopters (D); most were less than 0.25 D. Even lower mean differences were found when evaluating the cylindrical component of cycloplegic autorefraction versus cycloplegic retinoscopy. Despite low mean variability, there was significant individual measurement variability; the 95% limits of agreement were wide and included clinically relevant differences. Comparisons of noncycloplegic with cycloplegic autorefractions found that noncyloplegic refraction tends to over minus by 1 to 2 D. CONCLUSIONS: Cycloplegic autorefraction is appropriate to use in pediatric population-based studies. Cycloplegic retinoscopy can be valuable in individual clinical cases to confirm the accuracy of cycloplegic autorefraction, particularly when corrected visual acuity is worse than expected or the autorefraction results are not consistent with expected findings.


Assuntos
Oftalmologia/organização & administração , Refração Ocular/fisiologia , Retinoscopia/normas , Avaliação da Tecnologia Biomédica , Academias e Institutos/organização & administração , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Midriáticos/administração & dosagem , Reprodutibilidade dos Testes , Estados Unidos
3.
J Cataract Refract Surg ; 46(4): 562-566, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32271295

RESUMO

PURPOSE: To compare the use of topical dilation drops vs topical drops with the addition of intracameral epinephrine in resident-performed cataract surgery and the effects on pupil expansion device (PED) use, surgical costs, and surgical times. SETTING: Iowa City Veterans Affairs Medical Center, Iowa City, Iowa, USA. DESIGN: Retrospective chart review. METHODS: Resident-performed primary cataract surgical cases using topical dilation drops only or drops with the addition of intracameral epinephrine were analyzed for PED use, surgical time, and costs in all patients and in patients with a history of tamsulosin use. RESULTS: In the topical group, PEDs were used in 31.1% of cases compared with 13.5% of cases in the intracameral group (P < .0001). History of tamsulosin use was noted in about one third of cases in both groups. For patients with a history of tamsulosin use, PED use decreased from 52.7% in the topical cases to 17.9% in the intracameral group (P < .0001). Surgical times were on average 7.1 minutes slower with PED use than without PED use. There was a medication savings of $50.44 USD per case in the intracameral group compared with the topical group. Factoring in the $100 to $130 USD per PED used, total surgical costs were $19 267 USD less in the intracameral group over 6 months. CONCLUSIONS: Intracameral epinephrine with lidocaine decreases the need for PED use during cataract surgery, lowers intraoperative costs, and improves efficiency compared with topical dilation drops alone.


Assuntos
Extração de Catarata , Epinefrina/administração & dosagem , Internato e Residência , Midriáticos/administração & dosagem , Pupila/efeitos dos fármacos , Pupila/fisiologia , Dispositivos para Expansão de Tecidos , Administração Oftálmica , Idoso , Idoso de 80 Anos ou mais , Anestésicos Locais/administração & dosagem , Câmara Anterior/efeitos dos fármacos , Ciclopentolato/administração & dosagem , Ciclopentolato/economia , Combinação de Medicamentos , Custos de Medicamentos , Feminino , Humanos , Lidocaína/administração & dosagem , Masculino , Pessoa de Meia-Idade , Midriáticos/economia , Duração da Cirurgia , Soluções Oftálmicas , Oftalmologia/economia , Oftalmologia/educação , Fenilefrina/administração & dosagem , Fenilefrina/economia , Estudos Retrospectivos , Tropicamida/administração & dosagem , Tropicamida/economia
4.
Ophthalmology ; 126(11): 1492-1499, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31281055

RESUMO

PURPOSE: To identify the characteristics that are associated with adherence to annual diabetic eye exams and patient awareness of retinopathy using a nationally representative sample from the United States. DESIGN: Cross-sectional, secondary analysis. PARTICIPANTS: National Health and Nutrition Examination Survey (NHANES) participants from 2005 to 2016 aged 20 years and older with diabetes mellitus. METHODS: The NHANES collected surveys every 2 years from 2005 to 2016, which contained demographic information, clinical information, and time to last dilated eye exam. From 2005 to 2008, retinal photographs were taken of all participants older than 40 years of age. We used univariate and multivariable logistic regression to determine the demographic and clinical factors associated with adherence to annual diabetic eye examinations and those associated with correctly reporting their retinopathy status. MAIN OUTCOME MEASURE: Factors associated with adherence defined as having an eye exam within the preceding 12 or 24 months. RESULTS: From 2005 to 2016, NHANES surveyed 4072 individuals who represent 20 million Americans aged 20 years and older with self-report of diabetes. By using the adherence definitions of 12 and 24 months, 63.4% and 78.7%, respectively, were adherent to diabetic eye examinations. The nonadherence rates of 36.6% and 21.3% for this national estimate did not change from 2005 to 2016 (P = 0.7, logistic regression). Insurance status, age, education, income, cholesterol levels, duration of diabetes, and self-reported retinopathy were all significantly associated with adherence with both definitions (all P < 0.05, logistic regression). Insurance status had the highest predictive value, with 76% of Americans on combination private-public insurance adherent compared with 36% of uninsured. Most Americans with retinopathy incorrectly denied having the diagnosis (2 727 144/3 896 093 or 70%). CONCLUSIONS: Multiple variables were associated with nonadherence to eye exams, with insurance status having the strongest association. Adherence with annual eye exams has not improved over the past decade. The majority of patients with retinopathy are unaware of this diagnosis, including the majority of those with a dilated funduscopic examination in the past year. Further improvements in education and adherence may reduce the visual morbidity caused by diabetes.


Assuntos
Retinopatia Diabética/diagnóstico , Midriáticos/administração & dosagem , Cooperação do Paciente/estatística & dados numéricos , Exame Físico/estatística & dados numéricos , Pupila/efeitos dos fármacos , Academias e Institutos/normas , Adulto , Idoso , Colesterol/sangue , Estudos Transversais , Diabetes Mellitus/diagnóstico , Feminino , Humanos , Seguro Saúde/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Inquéritos Nutricionais , Oftalmologia/normas , Guias de Prática Clínica como Assunto/normas , Sociedades Médicas/normas , Estados Unidos , Seleção Visual/normas
5.
BMC Ophthalmol ; 18(1): 104, 2018 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-29673317

RESUMO

BACKGROUND: During cataract surgery, maintaining an adequate degree of mydriasis throughout the entire operation is critical to allow for visualisation of the capsulorhexis and the crystalline lens. Good anaesthesia is also essential for safe intraocular surgery. Mydrane® is a new injectable intracameral solution containing two mydriatics (tropicamide 0.02% and phenylephrine 0.31%) and one anaesthetic (lidocaine 1%) that was developed as an alternative to the conventional topical pre-operative mydriatics used in cataract surgery. This study aimed to estimate the budget impact across a one year time frame using Mydrane® instead of topical dilating eye drops, for a UK hospital performing 3,000 cataract operations a year. METHODS: A budget impact model (BIM) was developed to compare the economic outcomes associated with the use of Mydrane® versus topical drops (tropicamide 0.5% and phenylephrine 10%) in patients undergoing cataract surgery in a UK hospital. The outcomes of interest included costs and resource use (e.g. clinician time, mydriasis failures, operating room time, number of patients per vial of therapy etc.) associated with management of mydriasis in patients undergoing cataract surgery. All model inputs considered the UK hospital perspective without social or geographical variables. Deterministic sensitivity analyses were also performed to assess the model uncertainty. RESULTS: Introduction of Mydrane® is associated with a cost saving of £6,251 over 3,000 cataract surgeries in one year. The acquisition costs of the Mydrane® (£18,000 by year vs. £3,330 for eye drops) were balanced by substantial reductions in mainly nurses' costs and time, plus a smaller contribution from savings in surgeons' costs (£20,511) and lower costs associated with auxiliary dilation (£410 due to avoidance of additional dilation methods). Results of the sensitivity analyses confirmed the robustness of the model to the variation of inputs. Except for the duration of one session of eye drop instillation and the cost of Mydrane®, Mydrane® achieved an incremental cost gain compared to tropicamide/phenylephrine eye drops. CONCLUSIONS: Despite a higher acquisition cost of Mydrane®, the budget impact of Mydrane® on hospital budgets is neutral. Mydrane® offers a promising alternative to traditional regimes using eye drops, allowing for a better patient flow and optimisation of the surgery schedule with neutral budget impact.


Assuntos
Análise Custo-Benefício , Midríase/economia , Midriáticos/economia , Facoemulsificação/métodos , Fenilefrina/economia , Tropicamida/economia , Anestésicos Locais/administração & dosagem , Orçamentos , Custos de Medicamentos , Custos Hospitalares , Humanos , Lidocaína/administração & dosagem , Modelos Econômicos , Midriáticos/administração & dosagem , Facoemulsificação/economia , Fenilefrina/administração & dosagem , Estudos Prospectivos , Tropicamida/administração & dosagem , Reino Unido
6.
Br J Ophthalmol ; 102(6): 784-789, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-28903962

RESUMO

BACKGROUND: Intracameral Mydrane might facilitate a more streamlined cataract service and improve the patient experience. There is limited 'real-world' evidence of its use in a UK setting. METHODS: As part of a local evaluation of cataract surgery using intracameral Mydrane (group 2; n=60), data were collected on intraoperative pupil size and postoperative visual acuity (VA), as well as the rate of mechanical pupil dilation, intraoperative floppy iris syndrome (IFIS) and complications. Preoperative and theatre turnaround time was recorded and patients completed a validated measure of satisfaction postoperatively. Data were compared with a previous cohort subjected to the existing standard regime of preoperative topical mydriatics (group 1; n=60). RESULTS: Postoperative VA was comparable between groups (0.09±0.16 vs 0.08±0.15; p=0.59). Pupil size in group 2 was 7.0±1.0 mm prior to capsulorhexis and 6.5±0.29 mm after cortical aspiration, with a smaller pupil in patients on alpha-antagonists (4.7±1.1 mm; p=0.004) at this later time point. Comparing group 2 with group 1, preoperative waiting was less (87 vs 146 min; p<0.0001) and satisfaction was higher (76.0±11.2 vs 66.3±8.6; p<0.0001), although theatre turnaround time was longer (25 min vs 22 min). CONCLUSION: Intracameral mydriasis was clinically effective in most patients undergoing cataract surgery and might be associated with an improved patient experience and a more streamlined preoperative flow. Mydrane represents a licensed alternative to the off-label use of other intracameral mydriatic agents, but was not judged to be a cost-effective intervention for routine use in this particular setting.


Assuntos
Midriáticos/administração & dosagem , Facoemulsificação/métodos , Tropicamida/administração & dosagem , Idoso , Custos de Medicamentos , Feminino , Humanos , Injeções , Complicações Intraoperatórias , Implante de Lente Intraocular , Lidocaína/administração & dosagem , Masculino , Pessoa de Meia-Idade , Midriáticos/economia , Satisfação do Paciente , Facoemulsificação/economia , Fenilefrina/administração & dosagem , Estudos Prospectivos , Pupila/efeitos dos fármacos , Acuidade Visual/fisiologia
7.
Br J Clin Pharmacol ; 83(8): 1791-1800, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28239898

RESUMO

AIMS: Tropicamide is a mydriatic drug used as eye-drops for diagnostic or therapeutic purposes. From 2013, a diverted use by intravenous route has been suspected in Eastern Europe in opioids users. To date, no signal of misuse has been identified in France. The aims of this study were to investigate any early signals of a diverted use of tropicamide eye drops and to collect information regarding motives for the misuse and tropicamide-induced effects. METHODS: Information was obtained at three levels: (1) at regional level (Midi-Pyrénées area), from reimbursement data and pharmacists' reports on suspicious requests; (2) at national level: from reimbursement data and prescriptions suggesting possible abuse from the OSIAP (Ordonnances Suspectes, Indicateur d'Abus Possible) survey; and (3) at international level: from VigiBase® reports and Web sources. Beta-blocker eye-drops were used as comparators. RESULTS: In France, in 2014-2015, 17 (0.91%, 95% CI [0.53-1.46%]) falsified prescriptions involving tropicamide were identified in the OSIAP survey (compared with 0%, 95% CI [0-0.19%] for beta-blockers). Moreover, 37 other suspicious prescriptions were presented in 2015 (notified in 2016). In Midi-Pyrénées, seven patients aged 35-49 were reimbursed for 19-45 vials of 10 ml, in a year. Since September 2014, the regional Addictovigilance Centre has received 91 notifications of suspicious requests to obtain tropicamide. In VigiBase® , two cases were identified but none in France. An increased interest in tropicamide-related Internet searches was observed from Russia and Ukraine. CONCLUSIONS: These results represent the first early warnings of a tropicamide diverted use in France. Tropicamide abusers would seek euphoria or hallucinations. The high doses involved in intravenous administration could lead to serious complications.


Assuntos
Midriáticos/toxicidade , Soluções Oftálmicas/toxicidade , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Uso Indevido de Medicamentos sob Prescrição/estatística & dados numéricos , Tropicamida/toxicidade , Adulto , Serviços Comunitários de Farmácia/estatística & dados numéricos , Prescrições de Medicamentos/estatística & dados numéricos , Euforia/efeitos dos fármacos , Feminino , França/epidemiologia , Alucinações/induzido quimicamente , Humanos , Comportamento de Busca de Informação , Injeções Intravenosas , Internet/tendências , Masculino , Pessoa de Meia-Idade , Midriáticos/administração & dosagem , Soluções Oftálmicas/administração & dosagem , Federação Russa , Inquéritos e Questionários , Tropicamida/administração & dosagem , Ucrânia
8.
Artigo em Inglês | MEDLINE | ID: mdl-26836005

RESUMO

PURPOSE: To determine if testing binocular visual acuity in infants and toddlers using the Acuity Card Procedure (ACP) with electronic grating stimuli yields clinically useful data. METHODS: Participants were infants and toddlers ages 5 to 36.7 months referred by pediatricians due to failed automated vision screening. The ACP was used to test binocular grating acuity. Stimuli were presented on the Dobson Card. The Dobson Card consists of a handheld matte-black plexiglass frame with two flush-mounted tablet computers and is similar in size and form to commercially available printed grating acuity testing stimuli (Teller Acuity Cards II [TACII]; Stereo Optical, Inc., Chicago, IL). On each trial, one tablet displayed a square-wave grating and the other displayed a luminance-matched uniform gray patch. Stimuli were roughly equivalent to the stimuli available in the printed TACII stimuli. After acuity testing, each child received a cycloplegic eye examination. Based on cycloplegic retinoscopy, patients were categorized as having high or low refractive error per American Association for Pediatric Ophthalmology and Strabismus vision screening referral criteria. Mean acuities for high and low refractive error groups were compared using analysis of covariance, controlling for age. RESULTS: Mean visual acuity was significantly poorer in children with high refractive error than in those with low refractive error (P = .015). CONCLUSIONS: Electronic stimuli presented using the ACP can yield clinically useful measurements of grating acuity in infants and toddlers. Further research is needed to determine the optimal conditions and procedures for obtaining accurate and clinically useful automated measurements of visual acuity in infants and toddlers.


Assuntos
Testes Visuais/instrumentação , Visão Binocular/fisiologia , Acuidade Visual/fisiologia , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Midriáticos/administração & dosagem , Erros de Refração/diagnóstico , Erros de Refração/fisiopatologia , Retinoscopia
9.
Ophthalmology ; 122(10): 2038-43, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26189190

RESUMO

PURPOSE: We compared smartphone fundus photography, nonmydriatic fundus photography, and 7-field mydriatic fundus photography for their abilities to detect and grade diabetic retinopathy (DR). DESIGN: This was a prospective, comparative study of 3 photography modalities. PARTICIPANTS: Diabetic patients (n = 300) were recruited at the ophthalmology clinic of a tertiary diabetes care center in Chennai, India. METHODS: Patients underwent photography by all 3 modalities, and photographs were evaluated by 2 retina specialists. MAIN OUTCOME MEASURES: The sensitivity and specificity in the detection of DR for both smartphone and nonmydriatic photography were determined by comparison with the standard method, 7-field mydriatic fundus photography. RESULTS: The sensitivity and specificity of smartphone fundus photography, compared with 7-field mydriatic fundus photography, for the detection of any DR were 50% (95% confidence interval [CI], 43-56) and 94% (95% CI, 92-97), respectively, and of nonmydriatic fundus photography were 81% (95% CI, 75-86) and 94% (95% CI, 92-96%), respectively. The sensitivity and specificity of smartphone fundus photography for the detection of vision-threatening DR were 59% (95% CI, 46-72) and 100% (95% CI, 99-100), respectively, and of nonmydriatic fundus photography were 54% (95% CI, 40-67) and 99% (95% CI, 98-100), respectively. CONCLUSIONS: Smartphone and nonmydriatic fundus photography are each able to detect DR and sight-threatening disease. However, the nonmydriatic camera is more sensitive at detecting DR than the smartphone. At this time, the benefits of the smartphone (connectivity, portability, and reduced cost) are not offset by the lack of sufficient sensitivity for detection of DR in most clinical circumstances.


Assuntos
Retinopatia Diabética/diagnóstico , Técnicas de Diagnóstico Oftalmológico , Midriáticos/administração & dosagem , Fotografação/métodos , Pupila/efeitos dos fármacos , Smartphone , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
10.
BMC Ophthalmol ; 15: 56, 2015 Jun 03.
Artigo em Inglês | MEDLINE | ID: mdl-26036871

RESUMO

BACKGROUND: Mydriasert is an insoluble ophthalmic insert indicated for mydriasis prior to cataract surgery, which gradually releases the active ingredients: tropicamide (0.25 mg) and phenylephrine (5.38 mg). This study aimed to evaluate the cost of Mydriasert compared with conventional mydriatic eye drops to induce pupil dilation prior to cataract surgery using a budget impact model. METHODS: A cohort-based, decision tree, budget impact model was developed to estimate the drug, consumable and staff costs for achieving mydriasis with Mydriasert compared to mydriatic eye drops (tropicamide [1%] plus phenylephrine [10%]). Insights from structured interviews with clinicians (n = 5) experienced in using both Mydriasert and mydriatic eye drops and results from the current clinical study of patients undergoing cataract surgery (n = 144) at a Greater London district general hospital were used to obtain key input parameters for the model, and to validate the model approach. RESULTS: The base case analysis in a cohort of 1763 patients undergoing cataract surgery showed that when Mydriasert substituted mydriatic eye drops, annual total costs decreased by 18% and annual total nurse time decreased from 235.1 hours to 44.1 hours over one year (2012-2013). CONCLUSIONS: This study demonstrated that despite its higher unit cost than mydriatic eye drops, Mydriasert resulted in overall savings in health-care costs, mainly associated with reduced nursing time. The economic model developed could assist National Health Service managers and local payers to estimate the budget impact of the introduction of Mydriasert into different clinical settings.


Assuntos
Extração de Catarata/economia , Custos de Medicamentos , Implantes de Medicamento/economia , Custos de Cuidados de Saúde , Midriáticos/economia , Pupila/efeitos dos fármacos , Idoso , Idoso de 80 Anos ou mais , Combinação de Medicamentos , Feminino , Humanos , Implante de Lente Intraocular , Masculino , Pessoa de Meia-Idade , Modelos Econômicos , Midriáticos/administração & dosagem , Programas Nacionais de Saúde/economia , Fenilefrina/administração & dosagem , Fenilefrina/economia , Tropicamida/administração & dosagem , Tropicamida/economia , Reino Unido
11.
Paediatr Anaesth ; 24(4): 400-5, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24354865

RESUMO

BACKGROUND: Phenylephrine eye drops are widely used as mydriatic agent to reach the posterior segment of the eye. In literature, many reports suggest a systemic absorption of this agent as a source of severe adverse drug reactions. Hence, we reviewed our experience with topical phenylephrine in ophthalmic surgery. METHODS: In May 2006, following US guidelines publication, a standard operating procedure was issued in our operating rooms to standardize the use of phenylephrine eye drops in our practice. Two years later, after the occurrence of a cluster of serious adverse drug reactions in infants undergoing surgery, a review of phenylephrine safety and systemic complications incidence was performed. RESULTS: We observed 451 pediatric patients, and 187 met the inclusions criteria: Among them, 4 experienced hemodynamic complications due to phenylephrine eye drops. The incidence of major complications was 2.1%. CONCLUSIONS: Two different patterns of side effects occurred. The first one was a cardiovascular derangement with severe hypertension and heart rate alterations; the other one involved exclusively pulmonary circuit causing early edema. These clinical manifestations, their duration, and treatment responses are all explainable by alfa1-adrenergic action of phenylephrine. This hypothetic pathogenesis has been confirmed also by the usefulness of direct vasodilators (anesthetic agents) and by the negative outcome occurred in the past with the use of beta-blockers.


Assuntos
Anestesia Geral/efeitos adversos , Midriáticos/efeitos adversos , Procedimentos Cirúrgicos Oftalmológicos/efeitos adversos , Fenilefrina/efeitos adversos , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Seguimentos , Hemodinâmica/efeitos dos fármacos , Humanos , Incidência , Lactente , Masculino , Midriáticos/administração & dosagem , Midriáticos/sangue , Soluções Oftálmicas/efeitos adversos , Fenilefrina/administração & dosagem , Fenilefrina/sangue , Complicações Pós-Operatórias/induzido quimicamente , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos
12.
Eur J Ophthalmol ; 23(6): 819-22, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23813108

RESUMO

PURPOSE: To determine the change in pattern electroretinogram (PERG) amplitude during the ibopamine test in patients with ocular hypertension (OHT). METHODS: A total of 32 eyes (16 patients) with OHT (8 male, 8 female), mean age 54.19 years (range 22-76 years), mean baseline intraocular pressure (IOP) 23 ± 2 mm Hg, received a PERG assessment in both eyes every 5 minutes from baseline to 60 minutes. All the patients were pretreated by thymoxamine eyedrops to avoid the mydriatic effect of ibopamine. All the data were evaluated by descriptive statistics and paired t test. The results were considered with a significance level of p<0.05. RESULTS: All the patients enrolled matched the inclusion criteria and they did not have any local or systemic effects with the ibopamine test. The mean PERG amplitude decreased significantly from baseline after 45 minutes during the ibopamine test (paired t test = 0.05). The results were statistically not correlated with the positivity to the ibopamine test (p = 0.5). CONCLUSIONS: These data stress that, even in presence of a moderate and transient IOP increase, inner retinal function of patients with OHT may be transiently affected.


Assuntos
Desoxiepinefrina/análogos & derivados , Eletrorretinografia , Pressão Intraocular/efeitos dos fármacos , Midriáticos/administração & dosagem , Hipertensão Ocular/fisiopatologia , Retina/fisiopatologia , Adolescente , Adulto , Idoso , Desoxiepinefrina/administração & dosagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Soluções Oftálmicas , Reconhecimento Visual de Modelos/fisiologia , Tonometria Ocular , Adulto Jovem
15.
Arch Ophthalmol ; 130(5): 607-14, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22232367

RESUMO

OBJECTIVE: To estimate the cost-effectiveness of visual acuity screening performed in primary care settings and of dilated eye evaluations performed by an eye care professional among new Medicare enrollees with no diagnosed eye disorders. Medicare currently reimburses visual acuity screening for new enrollees during their initial preventive primary care health check, but dilated eye evaluations may be a more cost-effective policy. DESIGN: Monte Carlo cost-effectiveness simulation model with a total of 50 000 simulated patients with demographic characteristics matched to persons 65 years of age in the US population. RESULTS: Compared with no screening policy, dilated eye evaluations increased quality-adjusted life-years(QALYs) by 0.008 (95% credible interval [CrI], 0.005-0.011) and increased costs by $94 (95% CrI, −$35 to$222). A visual acuity screening increased QALYs in less than 95% of the simulations (0.001 [95% CrI, −0.002 to 0.004) and increased total costs by $32 (95% CrI, −$97 to $159) per person. The incremental cost-effectiveness ratio of a visual acuity screening and an eye examination compared with no screening were $29 000 and$12 000 per QALY gained, respectively. At a willingness-to-pay value of $15 000 or more per QALY gained, a dilated eye evaluation was the policy option most likely to be cost-effective. CONCLUSIONS: The currently recommended visual acuity screening showed limited efficacy and cost-effectiveness compared with no screening. In contrast, anew policy of reimbursement for Welcome to Medicare dilated eye evaluations was highly cost-effective.


Assuntos
Diabetes Mellitus/economia , Medicare/economia , Midriáticos/administração & dosagem , Pupila/efeitos dos fármacos , Seleção Visual/economia , Acuidade Visual/fisiologia , Idoso , Análise Custo-Benefício , Humanos , Pessoa de Meia-Idade , Modelos Econômicos , Método de Monte Carlo , Oftalmologia/economia , Exame Físico/economia , Atenção Primária à Saúde , Anos de Vida Ajustados por Qualidade de Vida , Estados Unidos
16.
Acta Ophthalmol ; 90(4): 380-6, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20977697

RESUMO

PURPOSE: To determine the sensitivity and specificity of noncycloplegic autorefraction for determining refractive status compared to cycloplegic autorefraction. METHODS: The target population was noninstitutionalized citizens of all ages, residing in Tehran in 2002, selected through stratified cluster sampling. From 6497 eligible residents, 70.3% participated in the study, from August to November 2002. Here, we report data on 3501 people over the age of 5 years who had autorefraction with and without cycloplegia (two drops of cyclopentolate 1.0% 5 min apart, with autorefraction 25 min after the second drop). RESULTS: Overall, the sensitivity of noncycloplegic autorefraction for myopia was 99%, but the specificity was only 80.4%. In contrast, the sensitivity for hyperopia was only 47.9%, but the specificity was 99.4%. At all ages, noncycloplegic autorefraction overestimated myopia and underestimated hyperopia. Overestimation of myopia was highest in the 21-30 and 31-40 year groups. Underestimation of hyperopia was high up to the age of 50 (20-40%), but decreased with age, to about 8% after the age of 50, down to almost 0% after 70. The difference in mean spherical equivalent with and without cycloplegia fell from 0.71 dioptres (D) in the 5-10 age group to 0.14D in those over 70. CONCLUSION: Use of noncycloplegic autorefraction in epidemiological studies leads to considerable errors relative to cycloplegic measurements, except in those over 50-60. The difference between cycloplegic and noncycloplegic measurements varies with age and cycloplegic refractive category, and there is considerable individual variation, ruling out adjusting noncycloplegic measurements to obtain accurate cycloplegic refractions.


Assuntos
Hiperopia/diagnóstico , Miopia/diagnóstico , Refração Ocular/fisiologia , Retinoscopia/normas , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Ciclopentolato/administração & dosagem , Feminino , Humanos , Irã (Geográfico) , Masculino , Pessoa de Meia-Idade , Midriáticos/administração & dosagem , Valor Preditivo dos Testes , Pupila/efeitos dos fármacos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Testes Visuais
17.
Arch Ophthalmol ; 129(12): 1592-8, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22159679

RESUMO

OBJECTIVES: To compare the effects of a tailored (individualized) and targeted (designed for a subgroup) print intervention in promoting dilated fundus examinations (DFEs) in older African Americans and to determine whether other factors (eg, demographics, preventive health practices, health literacy score, behavioral intentions, and DFE rates) are associated with getting a DFE. METHODS: African Americans aged 65 years or older who had not had a DFE in at least 2 years were recruited from community settings. Participants were randomized to receive either a tailored or targeted newsletter. Telephone follow-up was conducted at 1, 3, and 6 months to ascertain eye examination status. All participant-reported DFEs were confirmed by contacting their eye doctor (optometrist or ophthalmologist) by telephone. Main Outcome Measure  Eye doctor-confirmed DFE at 6 months. RESULTS: Of the 329 participants enrolled, 128 (38.9%) had an eye doctor-confirmed DFE. No significant difference was noted in this measure by intervention group (relative risk, 1.07; 95% confidence interval, 0.82-1.40), with 66 participants in the tailored group (40.2%) and 62 participants in the targeted group (37.6%) having an eye doctor-confirmed DFE. Based on logistic regression analysis, reading the newsletter (odds ratio, 1.76; 95% confidence interval, 1.08-2.87) and planning to make an appointment for a DFE (odds ratio, 2.46; 95% confidence interval, 1.42-4.26) were significant predictors for DFE. CONCLUSIONS: The tailored and targeted interventions were equally effective in promoting eye doctor-confirmed DFEs at 6 months. Given the increased cost and effort associated with tailoring, our results suggest that well-designed targeted print messages can motivate older African Americans to get DFEs. Trial Registration  clinicaltrials.gov Identifier: NCT00649766.


Assuntos
Negro ou Afro-Americano/psicologia , Oftalmopatias/prevenção & controle , Fundo de Olho , Comportamentos Relacionados com a Saúde , Conhecimentos, Atitudes e Prática em Saúde , Promoção da Saúde/métodos , Educação de Pacientes como Assunto/métodos , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Feminino , Acessibilidade aos Serviços de Saúde , Humanos , Masculino , Midriáticos/administração & dosagem , Pupila/efeitos dos fármacos , Inquéritos e Questionários , Seleção Visual
18.
J AAPOS ; 14(5): 389-95, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21035063

RESUMO

PURPOSE: To evaluate the psychometric properties of the original Parent and new Child Amblyopia Treatment Index (ATI), questionnaires that assess the burden of amblyopia treatment in children and families, and to compare scores between children treated with atropine or patching. METHODS: Parent ATI and Child ATI were administered to 233 children 7 to <13 years old and their parents as part of a randomized trial comparing patching and atropine for amblyopia treatment. For each ATI version, construct validity was assessed using factor analysis; internal consistency reliability was assessed using Cronbach's alpha. Data from the Parent ATI and Child ATI were correlated and scores for each version were compared between treatment groups. RESULTS: We analyzed the 3 subscales found in prior Parent ATI studies in younger children and confirmed subscales for adverse effects and treatment compliance, but not for social stigma, in both parent and child versions. Overall and subscale scores on the Parent ATI and Child ATI were moderately to well correlated except for the social stigma subscale. For both the Parent ATI and the Child ATI, children treated with atropine had better scores than those treated with patching, both overall and on treatment compliance and social stigma subscales (all p values ≤ 0.01). CONCLUSIONS: When used for children 7 to <13 years old, the Parent ATI and Child ATI have similar factor structures to each other and to the Parent ATI for children 3 to <7 years old. Atropine treatment was found to have less negative impact than patching.


Assuntos
Ambliopia/tratamento farmacológico , Ambliopia/psicologia , Atropina/administração & dosagem , Bandagens , Midriáticos/administração & dosagem , Aceitação pelo Paciente de Cuidados de Saúde , Adolescente , Adulto , Criança , Efeitos Psicossociais da Doença , Humanos , Soluções Oftálmicas , Pais/psicologia , Cooperação do Paciente , Psicologia da Criança , Psicometria , Inquéritos e Questionários
19.
J AAPOS ; 13(6): 593-5, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20006824

RESUMO

The horizontal and vertical components of strabismus are measured routinely and relatively easily in the clinical setting using prism-and-cover and/or corneal light reflex tests. The third dimension of ocular alignment, ocular torsion, is more difficult to assess. Objective torsional deviation (cyclotropia) is evaluated qualitatively with fundus examination. For quantitative assessment, however, fundus photography is needed, which may not always be available during a strabismus examination and typically requires pupil dilation. We present a simple, inexpensive photographic technique to assess changes in iris torsion and evaluate its accuracy by comparison with fundus photography. Using a consumer-grade digital camera, basic photographic editing software, and a data worksheet, this technique assesses changes in objective torsion with accuracy and retest variability of both approximately 1 degrees.


Assuntos
Músculos Oculomotores/cirurgia , Procedimentos Cirúrgicos Oftalmológicos , Fotografação/métodos , Estrabismo/diagnóstico , Anormalidade Torcional/diagnóstico , Adulto , Idoso , Humanos , Iris/patologia , Pessoa de Meia-Idade , Midriáticos/administração & dosagem , Fenilefrina/administração & dosagem , Pupila/efeitos dos fármacos , Estrabismo/cirurgia , Tropicamida/administração & dosagem
20.
Pediatrics ; 121(5): e1267-78, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18450869

RESUMO

OBJECTIVE: Screening examination for retinopathy of prematurity is distressing and painful. The aim of the present study was to investigate whether a Newborn Individualized Developmental Care and Assessment Program intervention during a retinopathy of prematurity examination results in less adverse behavioral, pain, and stress responses as compared with standard care. METHODS: The first 2 eye examinations in 36 preterm infants were evaluated. The infants were randomly assigned at the first eye examination to receive either Newborn Individualized Developmental Care and Assessment Program care or standard care. At the second examination, crossover of subject assignment was performed. The assessments included behavioral responses; recordings of heart rate, respiration, and oxygenation; pain scores (premature infant pain profile); and salivary cortisol at defined time points up to 4 hours after the eye examination. The nursing support given during the eye examinations (intervention score) were scored using predefined criteria. RESULTS: Altogether, 68 examinations were evaluated. Newborn Individualized Developmental Care and Assessment Program care was associated with better behavioral scores during the examination but there was no difference in heart rate, respiratory rate, oxygenation, or premature infant pain profile score between the 2 care strategies before or after the eye examination. Salivary cortisol increased from baseline to 30 minutes after the eye examination independent of care strategy and decreased significantly between 30 and 60 minutes when infants were subjected to Newborn Individualized Developmental Care and Assessment Program care but not after standard care. During the study period the intervention score for standard care increased and approached the score for Newborn Individualized Developmental Care and Assessment Program care at the later eye examinations. CONCLUSION: A Newborn Individualized Developmental Care and Assessment Program-based intervention during eye examination does not decrease pain responses but results in faster recovery, as measured by lower salivary cortisol 60 minutes after the examination. The differences were seen despite the influence from the Newborn Individualized Developmental Care and Assessment Program intervention on the standard care treatment that occurred during the study period.


Assuntos
Triagem Neonatal/efeitos adversos , Retinopatia da Prematuridade/diagnóstico , Estresse Fisiológico/etiologia , Seleção Visual/efeitos adversos , Anestésicos Locais , Estudos Cross-Over , Feminino , Frequência Cardíaca , Humanos , Hidrocortisona/análise , Comportamento do Lactente , Recém-Nascido , Masculino , Midriáticos/administração & dosagem , Midriáticos/efeitos adversos , Oxigênio/sangue , Medição da Dor , Respiração , Saliva/química , Estresse Fisiológico/prevenção & controle
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