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1.
Clin Ophthalmol ; 18: 325-335, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38332904

RESUMO

Newly approved treatments for patients with geographic atrophy are changing the treatment paradigm, highlighting the need for eye care providers (ECPs) to have a set of recommendations on how to best manage GA patients. Here, we outline how to identify various stages of age-related macular degeneration including geographic atrophy (GA) by examining optimal management scenarios implicating various ECPs and reviewing treatment considerations for patients with GA. Early identification of GA will lead to optimal patient outcomes, while a standardized management scenario will reduce clinical burden among ECPs treating patients with GA.

2.
BMJ Open Ophthalmol ; 8(1)2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37857560

RESUMO

BACKGROUND/AIMS: With a paradigm shift in geographic atrophy (GA) treatments now available, establishing consensus on the identification and diagnosis of the disease along with considerations for management of patients with GA will assist eye care professionals (ECP) in their day-to-day practices, leading to improved patient outcomes. METHODS: A modified Delphi panel process (Geographic Atrophy Management Consensus) consisting of three total surveys and one virtual live meeting held between survey 2 and survey 3. Data were collected from July to October 2022. Participants included expert members of the eye care community that have demonstrated outstanding leadership among peers: a steering committee with three ECPs and a 15-member panel divided between five optometrists, five comprehensive ophthalmologists and five retina specialists. Consensus on statements related to the management of patients with GA was calculated using the RAND/UCLA Appropriateness Method. RESULTS: At the conclusion of the third survey, consensus was reached on 91% of the 77 statements. Critical consensus topics include: (1) optical coherence tomography as the favoured method to diagnose and monitor GA, (2) preferred practice patterns regarding referral of patients to retina specialists and (3) treatment criteria given the advent of emerging therapeutics for GA. CONCLUSIONS: Generating awareness of early signs of disease development, progression and identifying the best tools to evaluate GA establishes ideal management and referral strategies. Given the paradigm shift in GA management driven by approved therapies, coupled with the fact that the disease is progressive resulting in devastating vision loss, these strategies are critical to ensure best overall outcomes.


Assuntos
Atrofia Geográfica , Optometristas , Humanos , Consenso , Retina
3.
Optom Vis Sci ; 98(8): 870-875, 2021 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-34460448

RESUMO

SIGNIFICANCE: This study demonstrates the importance of routine multimodal imaging for the diagnosis of choroidal neovascular membrane secondary to torpedo maculopathy. CASE REPORT: A 63-year-old woman with a history of torpedo maculopathy presented with recent-onset symptoms of visual distortion in the right eye. Multimodal imaging modalities revealed the presence of a choroidal neovascular membrane. The choroidal neovascular membrane was treated, and the patient was subsequently followed up to monitor the retinal appearance over time. Significant structural restoration of the macular anatomy with overall functional improvement was seen. CONCLUSIONS: Although torpedo maculopathy is often a benign diagnosis, complications such as choroidal neovascular membrane can occur. Choroidal neovascular membrane formation is well documented in younger patients with torpedo maculopathy; however, we present a rare case of choroidal neovascular membrane in an elderly individual. Multimodal imaging proved instrumental in the early detection and management of this infrequently reported complication.


Assuntos
Degeneração Macular , Epitélio Pigmentado da Retina , Idoso , Feminino , Angiofluoresceinografia , Humanos , Degeneração Macular/complicações , Degeneração Macular/diagnóstico por imagem , Pessoa de Meia-Idade , Imagem Multimodal , Tomografia de Coerência Óptica
4.
J. optom. (Internet) ; 11(2): 75-85, abr.-jun. 2018. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-172720

RESUMO

Purpose: This study investigated the correlation between the relative afferent pupillary defect (RAPD) and retinal nerve fiber layer thickness (RNFLT) in optic neuropathy. Methods: RAPD assessment was performed using a log unit neutral density filter bar. Spectral domain optical coherence tomography RTVue-100 (Optovue) was used to examine the subjects. The optic nerve head pattern (ONH) was subdivided and identified for the purpose of the study into circumpapillary RNFLT (cpRNFLT) and peripheral circumpapillary RNFLT (pcpRNFLT). The cpRNFLT, pcpRNFLT and ganglion cell complex (GCC) parameters were analyzed. Results: Eighteen females and twenty three males with asymmetric optic neuropathy and a RAPD participated. Thirty-three subjects had glaucoma and eight had optic neuropathy other than glaucoma. Significant correlations (p < 0.02) were obtained for the RAPD and the percentage difference loss of the GCC and RNFLT parameters. The grouped mean percentage difference loss for RNFLT was significantly different from that of the GCC (p < 0.001). At a 0.6 log unit RAPD, the average mean percentage difference loss was 23% for the CRNFLT, 15% for the GCC, 12% for the global loss volume percentage and 6% for the focal loss volume percentage (FLV%). Conclusions: Significant correlations between RNFLT loss for cpRNFLT, pcpRNFLT and GCC parameters with RAPD were observed. Approximately a 35% higher sensitivity was obtained using GCC compared to CRNFL parameters. The expected change in GCC average for every 0.3 log unit increment was approximately 8.49 m. The FLV% corresponded more sensitively to a RAPD but appeared to be influenced by disease severity


Objetivo: Este estudio investigó la correlación entre el defecto pupilar aferente relativo (DPAR) y el grosor de la capa de fibras nerviosas de la retina (RNFLT) en la neuropatía óptica. Métodos: La valoración del DPAR se realizó utilizando una barra de filtro de densidad neutra de unidades logarítmicas. Para examinar a los sujetos se utilizó tomografía de coherencia óptica de dominio espectral RTVue-100 (Optovue). A los fines del estudio, se subdividió e identificó el patrón de la cabeza del nervio óptico (ONH) en RNFLT circumpapilar (cpRNFLT) y RNFLT circumpapilar periférico (pcpRNFLT). Se analizaron los parámetros de cpRNFLT, pcpRNFLT y del complejo de células ganglionares (GCC). Resultados: Se incluyó en el estudio a dieciocho mujeres y treinta y tres varones con neuropatía óptica asimétrica y DPAR. Treinta y tres sujetos tenían glaucoma y ocho neuropatía óptica diferente a glaucoma. Se obtuvieron correlaciones significativas (p < 0,02) para DPAR y pérdida de diferencia porcentual de los parámetros GCC y RNFLT. La pérdida de diferencia porcentual media agrupada para RNFLT fue considerablemente diferente a la de GCC (p < 0,001). Para una unidad log de 0,6 de DPAR, la pérdida de diferencia porcentual media fue del 23% para CRNFLT, del 15% para GCC, del 12% para el porcentaje de volumen de pérdida global, y del 6% para el porcentaje de pérdida focal de volumen (FLV%). Conclusiones: Se observaron correlaciones significativas entre la pérdida de RNFLT para los parámetros cpRNFLT, pcpRNFLT y GCC con DPAR. Se obtuvo aproximadamente un 35% de mayor sensibilidad utilizando los parámetros GCC en comparación a CRNFL. El cambio previsto en la media de GCC para cada incremento de unidad log de 0,3 fue de aproximadamente 8,49 um. El FLV% se correspondió de manera más sensible con DPAR, pero pareció verse influenciado por la severidad de la enfermedad


Assuntos
Humanos , Células Ganglionares da Retina/ultraestrutura , Neuropatia Óptica Isquêmica/diagnóstico por imagem , Distúrbios Pupilares/diagnóstico por imagem , Glaucoma/fisiopatologia , Neurônios Retinianos/ultraestrutura , Tomografia de Coerência Óptica , Distúrbios Pupilares/fisiopatologia
5.
J Optom ; 11(2): 75-85, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-28676353

RESUMO

PURPOSE: This study investigated the correlation between the relative afferent pupillary defect (RAPD) and retinal nerve fiber layer thickness (RNFLT) in optic neuropathy. METHODS: RAPD assessment was performed using a log unit neutral density filter bar. Spectral domain optical coherence tomography RTVue-100 (Optovue) was used to examine the subjects. The optic nerve head pattern (ONH) was subdivided and identified for the purpose of the study into circumpapillary RNFLT (cpRNFLT) and peripheral circumpapillary RNFLT (pcpRNFLT). The cpRNFLT, pcpRNFLT and ganglion cell complex (GCC) parameters were analyzed. RESULTS: Eighteen females and twenty three males with asymmetric optic neuropathy and a RAPD participated. Thirty-three subjects had glaucoma and eight had optic neuropathy other than glaucoma. Significant correlations (p<0.02) were obtained for the RAPD and the percentage difference loss of the GCC and RNFLT parameters. The grouped mean percentage difference loss for RNFLT was significantly different from that of the GCC (p<0.001). At a 0.6log unit RAPD, the average mean percentage difference loss was 23% for the CRNFLT, 15% for the GCC, 12% for the global loss volume percentage and 6% for the focal loss volume percentage (FLV%). CONCLUSIONS: Significant correlations between RNFLT loss for cpRNFLT, pcpRNFLT and GCC parameters with RAPD were observed. Approximately a 35% higher sensitivity was obtained using GCC compared to CRNFL parameters. The expected change in GCC average for every 0.3log unit increment was approximately 8.49µm. The FLV% corresponded more sensitively to a RAPD but appeared to be influenced by disease severity.


Assuntos
Glaucoma de Ângulo Aberto/diagnóstico , Fibras Nervosas/patologia , Doenças do Nervo Óptico/diagnóstico , Distúrbios Pupilares/diagnóstico , Células Ganglionares da Retina/patologia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Hipertensão Ocular , Disco Óptico/patologia , Tomografia de Coerência Óptica , Campos Visuais
6.
Retina ; 38(10): 2056-2063, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28806215

RESUMO

PURPOSE: To determine the prevalence and factors influencing vitreomacular adhesion (VMA) or vitreomacular traction (VMT) in subjects without maculopathy older than age 40 years. METHODS: In a prospective cross-sectional study, 1,950 eyes in 1,090 participants aged 40 to 89 years representing various ethnic groups from 14 centers in the United States underwent a comprehensive eye examination, including spectral domain optical coherence tomography. A team of independent, masked readers classified the presence or absence of VMA/VMT on spectral domain optical coherence tomography based on the International Vitreomacular Traction Study Group rubric. RESULTS: Across all eyes, the prevalence of VMA or VMT was 39% or 1%, respectively. For every 1-year increase in age, there was a statistically significant 7% decreased odds of having VMA or VMT (95% confidence interval [CI]: 0.89-0.96; P < 0.001), whereas African Americans had 55% significantly reduced odds of having VMA or VMT when than whites (95% CI: 0.23-0.90; P = 0.025). Vitreomacular adhesion >1,500 µm was significantly more likely than VMA <1,500 µm in younger adults (95% CI: 0.70-0.86; P < 0.001), hyperopes versus emmetropes (95% CI: 1.49-35.9; P = 0.01), primary eye care versus tertiary practices (95% CI: 0.03-0.92; P = 0.04), and patients without hyperlipidemia (95% CI: 0.04-0.83; P = 0.03). CONCLUSION: Vitreomacular adhesion is highly prevalent among middle-aged adults. Diagnostic screening with spectral domain optical coherence tomography may help to accurately detect VMA or VMT, prompting routine monitoring and timely therapeutic intervention.


Assuntos
Doenças Retinianas/epidemiologia , Corpo Vítreo/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Doenças Retinianas/patologia , Fatores de Risco , Aderências Teciduais , Estados Unidos/epidemiologia , Descolamento do Vítreo/patologia
7.
Eur J Ophthalmol ; 27(4): e129-e133, 2017 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-28525681

RESUMO

PURPOSE: Idiopathic macular telangiectasia type 2 (IMT2) is a bilateral acquired maculopathy, with a spectrum of clinical presentations associated with inner retinal telangiectatic vascular anomalies. Cases often are underdiagnosed or misdiagnosed. Current diagnostic modalities such as spectral-domain optical coherence tomography (SD-OCT) and fluorescein angiography (FA) are valuable to the understanding of the clinicopathology. More recently, optical coherence tomography angiography (OCTA), as an emerging noninvasive technology, has been shown to be particularly useful in the assessment and management of IMT2. METHODS: Three clinical cases of IMT2 are discussed. Clinical presentation, fundus photography, FA, SD-OCT, and OCTA are presented. Each case illustrates variable presentation, staging, and associated findings related to IMT2. RESULTS: Optical coherence tomography angiography provides additional value when paired with traditional multimodal imaging in the assessment and management of IMT2. CONCLUSIONS: These cases present an opportunity to demonstrate the features of the OCTA in the evaluation of vascular diseases such as IMT2. Additionally, these examples emphasize the critical importance of OCTA in the clinical diagnosis and management of IMT2.


Assuntos
Angiofluoresceinografia , Telangiectasia Retiniana/diagnóstico por imagem , Tomografia de Coerência Óptica/métodos , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Imagem Multimodal , Fotografação/métodos
8.
Clin Exp Optom ; 100(6): 563-568, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28436087

RESUMO

BACKGROUND: Torpedo maculopathy is a rare, congenital maculopathy classically diagnosed funduscopically as a 'torpedo-shaped' lesion located temporal to the fovea. This case describes a torpedo maculopathy with non-classic optical coherence tomographic (OCT) findings and collaborative OCT angiographic (OCTA) findings. CASE REPORT: A 60-year-old Caucasian woman presented with a history of longstanding distortion and paracentral scotoma of the right eye. She had a positive family history of age-related macular degeneration. Visual acuity was 6/6 in each eye. Dilated fundus examination revealed a torpedo-shaped lesion in the right eye with a hypo-pigmented head pointing toward the fovea and a hyper-pigmented tail end. OCT imaging of the macula of the right eye revealed a subretinal cleft space with underlying thinning of the retinal pigment epithelium, increased choroidal reflectivity, as well as retinal pigment epithelial and choroidal excavation. OCTA choriocapillaris segmentation showed a hypo-reflective area associated with the lesion, adjacent to hyper-reflectivity. The patient was diagnosed with torpedo maculopathy of the right eye. CONCLUSIONS: OCT and OCTA imaging have been instrumental in developing a deeper understanding of many maculopathies, allowing for accurate diagnosis of macular conditions. Although the aetiology remains unclear, these imaging devices may provide further insight into the lesion in torpedo maculopathy.


Assuntos
Doenças Retinianas/congênito , Doenças Retinianas/diagnóstico por imagem , Epitélio Pigmentado da Retina/anormalidades , Corioide/irrigação sanguínea , Artérias Ciliares/diagnóstico por imagem , Artérias Ciliares/patologia , Angiografia por Tomografia Computadorizada , Feminino , Angiofluoresceinografia , Humanos , Pessoa de Meia-Idade , Vasos Retinianos/diagnóstico por imagem , Vasos Retinianos/patologia , Tomografia de Coerência Óptica , Acuidade Visual/fisiologia , Testes de Campo Visual , Campos Visuais/fisiologia
9.
Optom Vis Sci ; 94(3): 423-431, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28225373

RESUMO

PURPOSE: The advent of spectral domain optical coherence tomography has led to superb imaging capabilities in addition to enhanced visualization of the retinal layers. Such advancements have led to the identification of a variety of new retinal conditions, including outer retinal tubulations (ORTs). ORTs are ovoid hyporeflective spaces located in the outer retina. The pathogenesis is unclear but seems to involve sublethal injury to the photoreceptors leading to a compensatory reorganization of the photoreceptor layer with the neighboring ellipsoid zone resulting in a hyperreflective border surrounding a central lumen. Most ORTs have been linked to wet age-related macular degeneration; however, these peculiar structures are now seen in a myriad of retinal disorders. CASE REPORTS: Our cases will highlight the wide variety of clinical presentations associated with outer retinal tubulations. The clinical presentations include two cases of wet age-related macular degeneration, a case of presumed ocular histoplasmosis syndrome, a case of central areolar choroidal dystrophy, and a case of pathological myopia. CONCLUSIONS: By correctly differentiating outer retinal tubulations from other masqueraders, unnecessary referrals and interventions can be minimized. Understanding the various disease entities associated with outer retinal tubulation could give further insight into the mechanism and formation of these structures.


Assuntos
Distrofias Retinianas/diagnóstico , Segmento Externo das Células Fotorreceptoras da Retina/patologia , Epitélio Pigmentado da Retina/patologia , Idoso , Idoso de 80 Anos ou mais , Doenças da Coroide/complicações , Infecções Oculares Fúngicas/complicações , Feminino , Histoplasmose/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Miopia Degenerativa/complicações , Distrofias Retinianas/etiologia , Tomografia de Coerência Óptica , Degeneração Macular Exsudativa/complicações
10.
J Am Osteopath Assoc ; 116(11): 706-714, 2016 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-27802556

RESUMO

CONTEXT: The effects of osteopathic cranial manipulative medicine (OCMM) on visual function have been poorly characterized in the literature. Based on a pilot study conducted by their research group, the authors conducted a study that examined whether OCMM produced a measurable change in visual function in adults with cranial asymmetry. STUDY DESIGN: Randomized, controlled, double-blinded clinical trial. The intervention and control (sham therapy) were applied during 8 weekly visits, and participants in both groups received 8 weekly follow-up visits. PARTICIPANTS: Adult volunteers aged between 18 and 35 years with unremarkable systemic or ocular history were recruited. Inclusion criteria were refractive error between 6 diopters of myopia and 5 diopters of hyperopia, regular astigmatism of any amount, and cranial somatic dysfunction. INTERVENTION: All participants were evaluated for cranial asymmetry and randomly assigned to the treatment or sham therapy group. The treatment group received OCMM to correct cranial dysfunctions, and the sham therapy group received light pressure applied to the cranium. OUTCOME MEASURES: Preintervention and postintervention ophthalmic examinations consisted of distance visual acuity testing, accommodative system testing, local stereoacuity testing, pupillary size measurements, and vergence system testing. A χ2 analysis was performed to determine participant masking. Analysis of variance was performed for all ophthalmic measures. RESULTS: Eighty-nine participants completed the trial, with 47 in the treatment group and 42 in the sham therapy group. A hierarchical analysis of variance revealed statistically significant within-groups effects (P<.05) from before the intervention to visit 16 in distance visual acuity of both eyes, local stereoacuity, Donder pushup in both eyes, and near point of convergence break and recovery. For treatment group vs sham therapy group, a statistically significant effect (P<.05) was observed from before the intervention to visit 16 in pupillary size under bright light in the left eye and in near point of convergence break. CONCLUSION: Osteopathic cranial manipulative medicine may affect visual function in adults with cranial asymmetry. Active motion testing of the cranium for somatic dysfunction may affect the cranial system to a measurable level and explain interrater reliability issues in cranial studies. (ClinicalTrials.gov number NCT02728713).


Assuntos
Hiperopia/terapia , Osteopatia , Miopia/terapia , Acuidade Visual , Adulto , Análise de Variância , Astigmatismo/terapia , Método Duplo-Cego , Humanos , Crânio/anatomia & histologia , Adulto Jovem
11.
Optom Vis Sci ; 93(3): 310-7, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26760576

RESUMO

PURPOSE: Vitreomacular traction (VMT) is a condition characterized by an incomplete posterior vitreous detachment resulting in traction on the macula and possible subsequent decrease in visual acuity and/or other symptomatology. Vitreomacular traction often presents as a unilateral condition, with some cases developing bilaterality with disease progression. The natural course and presentation of VMT vary widely among individuals. There is no extensive literature regarding the prevalence of VMT in the general population; therefore, little is known on the laterality. CASE REPORTS: We present eight cases of bilateral VMT encountered in a primary care setting. These cases highlight the variability in presentation, symptomatology, and clinical outcome between and within eyes of patients with bilateral VMT. CONCLUSIONS: Spectral-domain optical coherence tomography has provided new insight into VMT by allowing better visualization of the vitreoretinal interface. Using spectral-domain optical coherence tomography, eight unique cases of bilateral VMT were confirmed and classified. However, despite the bilaterality noted in each case, the clinical presentation and course of disease varied among patients. Because of the paucity of epidemiological data regarding VMT, the laterality of the condition, risk factors for involvement, and overall prognosis remain unclear.


Assuntos
Retina/patologia , Doenças Retinianas/diagnóstico , Corpo Vítreo/patologia , Descolamento do Vítreo/diagnóstico , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Aderências Teciduais , Tomografia de Coerência Óptica/métodos , Acuidade Visual
12.
Optom Vis Sci ; 93(1): 107-12, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26583797

RESUMO

PURPOSE: Retinal capillary hemangioma (RCH) can occur in isolation or may be associated with von Hippel-Lindau disease. The classic RCH is described as a globular reddish lesion with a dilated feeding artery and a tortuous draining vein, indicative of a common endophytic growth pattern. Exophytic patterns are far more rare and, because of its subtle appearance, often missed or misdiagnosed. CASE REPORT: A 24-year-old woman presented with complaints of a mid-peripheral superior field defect OS. She had no family history of von Hippel-Lindau disease. Best-corrected visual acuity was 20/20 OD, OS. Dilated fundus examination of the left eye revealed a peripheral large inferotemporal retinal lesion with an overlying vascular network. Corresponding feeding and draining vasculature was not clearly noted on dilated fundus examination. Optical coherence tomography, ultrasonography, and fluorescein angiography testing were used to confirm the diagnosis of an exophytic peripheral RCH. Anti-vascular endothelial growth factor injections and cryotherapy were initiated, and the patient was scheduled for radioactive plaque brachytherapy. Genetic testing and proper scans were also recommended. CONCLUSIONS: This case illustrates an atypical exophytic peripheral RCH, rarely reported in the literature. The utilization of a variety of diagnostic modalities was highly effective, aiding in the diagnosis of this condition.


Assuntos
Hemangioma Capilar/diagnóstico , Neoplasias da Retina/diagnóstico , Vasos Retinianos/patologia , Inibidores da Angiogênese/uso terapêutico , Bevacizumab/uso terapêutico , Feminino , Angiofluoresceinografia , Hemangioma Capilar/tratamento farmacológico , Humanos , Injeções Intravítreas , Neoplasias da Retina/tratamento farmacológico , Vasos Retinianos/efeitos dos fármacos , Tomografia de Coerência Óptica , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Acuidade Visual/fisiologia , Adulto Jovem
13.
Optom Vis Sci ; 91(11): e274-7, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25259760

RESUMO

PURPOSE: Best vitelliform macular dystrophy, also known as Best disease, is a macular dystrophy characterized by bilateral yellowish egg yolk-like lesion(s) present within the maculae. It is a slowly progressive disease that usually presents at childhood. Best vitelliform macular dystrophy frequently proceeds through stages, beginning with a classic presentation described as vitelliform. A similar condition, known as adult-onset foveomacular vitelliform dystrophy, has been described among adult patients. Although the two maculopathies may look similar, they are considered two separate entities, because of the age of onset and overall clinical presentation. CASE REPORT: A 54-year-old man presented with gradual-onset blurred near vision in each eye. Previous records showed a history of unremarkable dilated fundus examinations for the past 8 years. Best-corrected distance acuities measured 20/20 OD and 20/20 OS. Amsler grid testing revealed a mild metamorphopsia OD and OS. Dilated fundoscopy revealed macular pseudohypopyon in each eye. In vivo imaging of the maculae was obtained with spectral-domain optical coherence tomography findings. Electrooculography findings were consistent with Best vitelliform macular dystrophy of atypical, late onset. CONCLUSIONS: Best vitelliform macular dystrophy may vary in its presentation. Electrooculography and spectral-domain optical coherence tomography can aid in establishing the definitive diagnosis.


Assuntos
Eletroculografia , Tomografia de Coerência Óptica , Distrofia Macular Viteliforme/diagnóstico , Fundo de Olho , Humanos , Masculino , Pessoa de Meia-Idade , Oftalmoscopia , Tomografia de Coerência Óptica/métodos , Transtornos da Visão/diagnóstico , Acuidade Visual/fisiologia , Distrofia Macular Viteliforme/fisiopatologia
15.
Clin Exp Optom ; 97(6): 507-10, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24995800

RESUMO

A literature review and case presentation are used to discuss the diagnostic value of spectral domain optical coherence tomography (SD-OCT) in the assessment and management of congenital achromatopsia. A 24-year-old Hispanic man presented to the clinic with a longstanding history of decreased vision and associated possible recent progression. A comprehensive eye examination and a battery of tests including SD-OCT, fundus photography, electroretinogram (ERG) and Farnsworth D-15 were completed. SD-OCT and photopic ERG confirmed the clinical diagnosis of congenital achromatopsia. There was the classic subfoveal flattened hyporeflective 'punched out' zone, resulting from an absence of inner segment/outer segment junction. SD-OCT findings associated with congenital achromatopsia have been documented recently, helping in the diagnosis of the condition. The SD-OCT findings have further expanded our knowledge of congenital achromatopsia, while also aiding in the management of the disease.


Assuntos
Defeitos da Visão Cromática/diagnóstico , Visão de Cores , Fóvea Central/patologia , Tomografia de Coerência Óptica/métodos , Diagnóstico Diferencial , Humanos , Masculino , Reprodutibilidade dos Testes , Adulto Jovem
17.
J Clin Pharmacol ; 51(12): 1690-5, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21406599

RESUMO

This study investigated possible effects of brimonidine tartrate 0.2% and apraclonidine 0.5% on pupil diameter. Ten subjects between 20 and 40 years of age participated. A Colvard pupillometer (Oasis Medical) was used to measure pupil diameter. Baseline and serial measurements were obtained at 3 luminance levels (>6.4, <0.82-0.4, and <0.2-0.02 cd/m(2)) during a 4-hour interval following instillation of 1 drop of brimonidine tartrate 0.2% or apraclonidine 0.5% in one eye versus a placebo in the contralateral eye. The measurements for each drug were obtained on different days. A nested random effects model controlling for subject's age, race, and sex was used for statistical analysis. A maximum reduction in pupil diameter was observed at 90 minutes from instillation (1.40 mm at >6.4 cd/m(2), 1.69 mm at <0.82-0.4 cd/m(2), and 1.55 mm at <0.2-0.02 cd/m(2)) for brimonidine tartrate 0.2%. At all time intervals and illumination levels, miosis (P < .01) occurred. Apraclonidine 0.5% did not produce a significant effect on pupil diameter. Brimonidine tartrate 0.2% produced a moderate miotic effect. No effect was observed for apraclonidine 0.5%. A predominant agonistic effect on α-2 receptors of the iris dilator may explain this behavior.


Assuntos
Agonistas de Receptores Adrenérgicos alfa 2/farmacologia , Clonidina/análogos & derivados , Pupila/efeitos dos fármacos , Quinoxalinas/farmacologia , Adulto , Tartarato de Brimonidina , Clonidina/farmacologia , Método Duplo-Cego , Feminino , Humanos , Masculino , Mióticos , Fotometria , Adulto Jovem
18.
Optometry ; 82(3): 158-65, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21146470

RESUMO

BACKGROUND: Primary retinal telangiectasia is characterized by abnormalities in the retinal vasculature. Any alteration of the normal retinal vasculature may result in variable degrees of retinal leakage, hemorrhages, and exudates. The retinal telangiectatic conditions of Coats' disease, Leber's miliary aneurysms, and idiopathic macular telangiectasia (IMT), although historically considered separate entities, may in fact be variants of the same pathophysiologic vascular process. This is based on observations noting that they share similarities in pathogenesis, histology, and clinical presentation. These observations are controversial and are contested in the literature. Conversely, others have documented Coats' disease, Leber's miliary aneurysms, and IMT as unique and separate retinal conditions, each with specific features. METHODS: Three cases are presented spanning the spectrum of primary retinal telangiectasia. Clinical evaluation, dilated fundus examination, and auxiliary testing document both the similar characteristics that the entities share as well as the distinct features, which define each disease's nomenclature and categorization. CONCLUSION: Coats' disease, Leber's miliary aneurysms, and IMT may be part of a singular clinical spectrum sharing pathophysiologic and histopathologic features and similarities in clinical presentation.


Assuntos
Vasos Retinianos , Telangiectasia/patologia , Aneurisma/patologia , Criança , Retinopatia Diabética/diagnóstico , Diagnóstico Diferencial , Exsudatos e Transudatos/metabolismo , Feminino , Fundo de Olho , Humanos , Macula Lutea/irrigação sanguínea , Masculino , Pessoa de Meia-Idade , Retina/metabolismo , Descolamento Retiniano/patologia , Vasos Retinianos/patologia , Telangiectasia/classificação , Telangiectasia/metabolismo
19.
J Am Osteopath Assoc ; 110(4): 239-43, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20430912

RESUMO

CONTEXT: The effects of osteopathy in the cranial field on visual function-particularly on changes in the visual field and on the binocular alignment of the eyes-have been poorly characterized in the literature. The authors examined whether osteopathy in the cranial field resulted in an immediate, measurable change in visual function among a sample of adults with cranial asymmetry. STUDY DESIGN: Randomized controlled double-blinded pilot clinical trial. SUBJECTS: Adult volunteers between ages 18 and 35 years who were free of strabismus or active ocular or systemic disease were recruited. Inclusion criteria were refractive error ranging between six diopters of myopia and five diopters of hyperopia, regular astigmatism of any amount, and cranial somatic dysfunction. INTERVENTION: All subjects were randomly assigned to the treatment or control group. The treatment group received a single intervention of osteopathy in the cranial field to correct cranial dysfunction. The control group received light pressure of a few ounces of force applied to the cranium without osteopathic manipulative treatment. MEASUREMENTS: Preintervention and postintervention optometric examinations consisted of distant visual acuity testing, Donder push-up (ie, accommodative system) testing, local stereoacuity testing, pupillary size measurements, and vergence system (ie, cover test with prism neutralization, near point of convergence) testing. Global stereoacuity testing and retinoscopy were performed only in preintervention to determine whether subjects met inclusion criteria. Analysis of variance (ANOVA) was performed for all ocular measures. RESULTS: Twenty-nine subjects completed the trial-15 in the treatment group and 14 in the control group. A hierarchical ANOVA revealed statistically significant effects within the treatment group and within the control group (P <.05) in distance visual acuity of the right eye (OD) and left eye (OS), local stereoacuity, pupillary size measured under dim illumination OD and OS, and near point of convergence break and recovery. For the treatment group vs the control group, a statistically significant effect was observed in pupillary size measured under bright illumination OS (P <.05). CONCLUSIONS: The present study suggests that osteopathy in the cranial field may result in beneficial effects on visual function in adults with cranial asymmetry. However, this finding requires additional investigation with a larger sample size and longer intervention and follow-up periods. (ClinicalTrials.gov number NCT00510562).


Assuntos
Osteopatia , Visão Binocular , Acuidade Visual , Acomodação Ocular , Adolescente , Adulto , Análise de Variância , Método Duplo-Cego , Feminino , Humanos , Masculino , Projetos Piloto , Pupila/fisiologia , Retinoscopia , Inquéritos e Questionários , Fatores de Tempo , Testes Visuais , Adulto Jovem
20.
Optometry ; 80(12): 681-7, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19932441

RESUMO

BACKGROUND: Vitreomacular traction (VMT) syndrome is characterized as a partial detachment of the posterior vitreous with persistent adherence to the macula. The dynamic process associated with macular traction may induce a variety of macular conditions including cystoid macular edema (CME), epiretinal membranes (ERM), and macular hole formation. METHODS: Dilated fundus evaluations as well as Stratus and Cirrus optical coherence tomography (OCT) (Zeiss-Humphrey, Dublin, California) imaging were used to evaluate patients with various maculopathies associated with VMT. CONCLUSION: The use of the OCT has enhanced the evaluation of the vitreal-retinal interface, leading to a better understanding of VMT. Once thought to be a rare distinct clinical entity, VMT is now considered a spectrum of macular diseases. The understanding of VMT and its role in the pathophysiology of various macular conditions may facilitate diagnosis and management of these conditions.


Assuntos
Membrana Epirretiniana/etiologia , Macula Lutea , Edema Macular/etiologia , Doenças Retinianas/complicações , Doenças Retinianas/etiologia , Descolamento do Vítreo/complicações , Idoso de 80 Anos ou mais , Feminino , Fundo de Olho , Humanos , Masculino , Pessoa de Meia-Idade , Doenças Retinianas/diagnóstico , Perfurações Retinianas/etiologia , Síndrome , Tomografia de Coerência Óptica , Descolamento do Vítreo/diagnóstico
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