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Purpose: To elucidate the impact of demographics, including gender, race, ethnicity, and preferred language, on regional visual field (VF) loss and progression in glaucoma. Methods: Multivariable linear mixed regressions were performed to determine the impact of race, ethnicity, and preferred language on regional VF loss with adjustment for age and gender. Regional VF loss was defined by pointwise total deviation values and VF loss patterns quantified by an unsupervised machine learning method termed archetypal analysis. All cross-sectional and longitudinal analyses were performed both without and with adjustment for VF mean deviation, which represented overall VF loss severity. P values were corrected for multiple comparisons. Results: All results mentioned had corrected P values less than 0.05. Asian and Black patients showed worse pointwise VF loss than White patients with superior hemifield more affected. Patients with a preferred language other than English demonstrated worse pointwise VF loss than patients with English as their preferred language. Longitudinal analyses revealed Black patients showed worse VF loss/year compared to White patients. Patients with a preferred language other than English demonstrated worse VF loss/year compared to patients preferring English. Conclusions: Blacks and non-English speakers have more severe VF loss, with superior hemifield being more affected and faster VF worsening. Translational Relevance: This study furthered our understanding of racial, ethnic, and socioeconomic disparities in glaucoma outcomes. Understanding the VF loss burden in different racial, ethnic, and socioeconomic groups may guide more effective glaucoma screening and community outreach efforts. This research could help reduce vision loss and improve quality of life in disproportionately affected populations by guiding public health efforts to promote glaucoma awareness and access to care.
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Glaucoma , Trastornos de la Visión , Campos Visuales , Humanos , Femenino , Masculino , Campos Visuales/fisiología , Persona de Mediana Edad , Anciano , Estudios Transversales , Glaucoma/epidemiología , Glaucoma/fisiopatología , Trastornos de la Visión/epidemiología , Progresión de la Enfermedad , Pruebas del Campo Visual , LenguajeRESUMEN
Intraocular pressure is currently the only known reliable, modifiable risk factor for the development and progression of glaucoma. Other risk factors for glaucoma include increasing age, myopia, decreased central corneal thickness, and low corneal hysteresis (CH) measurements. Photoablative keratorefractive surgery including laser assisted in situ keratomileusis (LASIK) has become a common way to treat refractive error, with over 25 million procedures performed in the United States alone. Though myopic LASIK has been associated with a decrease in CH measurements, relatively little is known about the risk of LASIK on glaucoma onset and progression. Here we present an observational study of 4 consecutive relatively young and otherwise healthy glaucoma patients with a history of myopic LASIK who showed progression of paracentral visual field deficits at intraocular pressures of 12 mm Hg or less while being carefully monitored. Therefore, these patients required lower targets of intraocular pressure, in the single-digit range, to slow or halt progression. In this cohort, the average corneal hysteresis was more than 2 standard deviations below normal values. This series suggests that additional study into the association of LASIK and glaucoma is warranted, including the potential risk contribution of diminished CH. These studies may be particularly relevant as patients who underwent LASIK procedures in the early 2000s may now be at increased risk of glaucoma due to the risk factor of age.
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Progresión de la Enfermedad , Presión Intraocular , Queratomileusis por Láser In Situ , Miopía , Tonometría Ocular , Campos Visuales , Humanos , Queratomileusis por Láser In Situ/efectos adversos , Presión Intraocular/fisiología , Campos Visuales/fisiología , Miopía/cirugía , Miopía/fisiopatología , Masculino , Femenino , Adulto , Córnea/fisiopatología , Trastornos de la Visión/fisiopatología , Trastornos de la Visión/etiología , Trastornos de la Visión/diagnóstico , Pruebas del Campo Visual , Persona de Mediana Edad , Agudeza Visual/fisiología , Factores de Riesgo , Láseres de Excímeros/uso terapéutico , Adulto JovenRESUMEN
We describe the case of a 73-year-old woman presenting with headaches, confusion, and vision disturbances. Brain MRI showed a large T2-hyperintense lesion in the right temporo-occipital region with vasogenic edema and leptomeningeal enhancement. A leptomeningeal biopsy was performed, which led to a definitive diagnosis.
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Confusión , Trastornos de la Visión , Humanos , Femenino , Anciano , Trastornos de la Visión/etiología , Trastornos de la Visión/diagnóstico , Confusión/etiología , Edema Encefálico/diagnóstico por imagen , Sustancia Blanca/patología , Sustancia Blanca/diagnóstico por imagen , Imagen por Resonancia Magnética , Esclerosis Múltiple/complicaciones , Esclerosis Múltiple/diagnóstico por imagen , Campos Visuales/fisiologíaRESUMEN
Purpose: To predict 10-2 Humphrey visual fields (VFs) from 24-2 VFs and associated non-total deviation features using deep learning. Methods: We included 5189 reliable 24-2 and 10-2 VF pairs from 2236 patients, and 28,409 reliable pairs of macular OCT scans and 24-2 VF from 19,527 eyes of 11,560 patients. We developed a transformer-based deep learning model using 52 total deviation values and nine VF test features to predict 68 10-2 total deviation values. The mean absolute error, root mean square error, and the R2 were evaluation metrics. We further evaluated whether the predicted 10-2 VFs can improve the structure-function relationship between macular thinning and paracentral VF loss in glaucoma. Results: The average mean absolute error and R2 for 68 10-2 VF test points were 3.30 ± 0.52 dB and 0.70 ± 0.11, respectively. The accuracy was lower in the inferior temporal region. The model placed greater emphasis on 24-2 VF points near the central fixation point when predicting the 10-2 VFs. The inclusion of nine VF test features improved the mean absolute error and R2 up to 0.17 ± 0.06 dB and 0.01 ± 0.01, respectively. Age was the most important 24-2 VF test parameter for 10-2 VF prediction. The predicted 10-2 VFs achieved an improved structure-function relationship between macular thinning and paracentral VF loss, with the R2 at the central 4, 12, and 16 locations of 24-2 VFs increased by 0.04, 0.05 and 0.05, respectively (P < 0.001). Conclusions: The 10-2 VFs may be predicted from 24-2 data. Translational Relevance: The predicted 10-2 VF has the potential to improve glaucoma diagnosis.
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Aprendizaje Profundo , Glaucoma , Tomografía de Coherencia Óptica , Pruebas del Campo Visual , Campos Visuales , Humanos , Pruebas del Campo Visual/métodos , Campos Visuales/fisiología , Femenino , Masculino , Persona de Mediana Edad , Glaucoma/fisiopatología , Glaucoma/diagnóstico , Tomografía de Coherencia Óptica/métodos , Anciano , Adulto , Trastornos de la Visión/fisiopatología , Trastornos de la Visión/diagnósticoRESUMEN
Purpose: Compare the use of optic disc and macular optical coherence tomography measurements to predict glaucomatous visual field (VF) worsening. Methods: Machine learning and statistical models were trained on 924 eyes (924 patients) with circumpapillary retinal nerve fiber layer (cp-RNFL) or ganglion cell inner plexiform layer (GC-IPL) thickness measurements. The probability of 24-2 VF worsening was predicted using both trend-based and event-based progression definitions of VF worsening. Additionally, the cp-RNFL and GC-IPL predictions were combined to produce a combined prediction. A held-out test set of 617 eyes was used to calculate the area under the curve (AUC) to compare cp-RNFL, GC-IPL, and combined predictions. Results: The AUCs for cp-RNFL, GC-IPL, and combined predictions with the statistical and machine learning models were 0.72, 0.69, 0.73, and 0.78, 0.75, 0.81, respectively, when using trend-based analysis as ground truth. The differences in performance between the cp-RNFL, GC-IPL, and combined predictions were not statistically significant. AUCs were highest in glaucoma suspects using cp-RNFL predictions and highest in moderate/advanced glaucoma using GC-IPL predictions. The AUCs for the statistical and machine learning models were 0.63, 0.68, 0.69, and 0.72, 0.69, 0.73, respectively, when using event-based analysis. AUCs decreased with increasing disease severity for all predictions. Conclusions: cp-RNFL and GC-IPL similarly predicted VF worsening overall, but cp-RNFL performed best in early glaucoma stages and GC-IPL in later stages. Combining both did not enhance detection significantly. Translational Relevance: cp-RNFL best predicted trend-based 24-2 VF progression in early-stage disease, while GC-IPL best predicted progression in late-stage disease. Combining both features led to minimal improvement in predicting progression.
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Progresión de la Enfermedad , Glaucoma , Disco Óptico , Células Ganglionares de la Retina , Tomografía de Coherencia Óptica , Campos Visuales , Humanos , Tomografía de Coherencia Óptica/métodos , Femenino , Disco Óptico/diagnóstico por imagen , Disco Óptico/patología , Masculino , Campos Visuales/fisiología , Persona de Mediana Edad , Glaucoma/diagnóstico por imagen , Glaucoma/fisiopatología , Células Ganglionares de la Retina/patología , Aprendizaje Automático , Anciano , Fibras Nerviosas/patología , Área Bajo la Curva , Mácula Lútea/diagnóstico por imagen , Mácula Lútea/patología , Trastornos de la Visión/fisiopatología , Trastornos de la Visión/diagnóstico por imagen , Trastornos de la Visión/diagnósticoRESUMEN
INTRODUCTION: Sepsis is associated with neurocognitive impairment among preterm neonates but less is known about term neonates with sepsis. This systematic review and meta-analysis aims to provide an update of neurocognitive outcomes including cognitive delay, visual impairment, auditory impairment, and cerebral palsy, among neonates with sepsis. METHODS: We performed a systematic review of PubMed, Embase, CENTRAL and Web of Science for eligible studies published between January 2011 and March 2023. We included case-control, cohort studies and cross-sectional studies. Case reports and articles not in English language were excluded. Using the adjusted estimates, we performed random effects model meta-analysis to evaluate the risk of developing neurocognitive impairment among neonates with sepsis. RESULTS: Of 7,909 studies, 24 studies (n = 121,645) were included. Majority of studies were conducted in the United States (n = 7, 29.2%), and all studies were performed among neonates. 17 (70.8%) studies provided follow-up till 30 months. Sepsis was associated with increased risk of cognitive delay [adjusted odds ratio, aOR 1.14 (95% CI: 1.01-1.28)], visual impairment [aOR 2.57 (95%CI: 1.14- 5.82)], hearing impairment [aOR 1.70 (95% CI: 1.02-2.81)] and cerebral palsy [aOR 2.48 (95% CI: 1.03-5.99)]. CONCLUSION: Neonates surviving sepsis are at a higher risk of poorer neurodevelopment. Current evidence is limited by significant heterogeneity across studies, lack of data related to long-term neurodevelopmental outcomes and term infants.
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Sepsis Neonatal , Humanos , Recién Nacido , Sepsis Neonatal/complicaciones , Parálisis Cerebral/complicaciones , Trastornos de la Visión/etiologíaRESUMEN
BACKGROUND: Childhood vision impairment (VI) has a significantly harmful effect on both health and social outcomes. AIM: To assess the causes of childhood VI, to determine obstacles to accessing eye care services and to develop a strategy for the childhood eye care system in African nations. METHOD: This systematic review was conducted by searching several online databases, including; Scopus, PubMed, ProQuest, Web of Science, Google Scholar, Ebsco and Medline. They focussed on articles available between 2003 and 2023. These studies were conducted to evaluate the causes of childhood VI and to assess obstacles to accessing eye care services in African countries. RESULTS: The main causes of childhood VI in African nations can be avoided with timely diagnosis and an appropriate management strategy. The leading obstacles to accessing childhood eye care services were a lack of availability, accessibility and affordability. In addition to these barriers, we found that there are concerns with quality of services, primary health care system, geographic barriers, incorrect health beliefs, inappropriate parental perception, a lack of knowledge, attitudes and inadequate practices related to paediatric eye care. CONCLUSION: The main causes of childhood VI were uncorrected refractive error (RE), amblyopia, cataract and corneal opacities that can be avoided with timely diagnosis and an appropriate management strategy. While the main obstacles to accessing childhood eye care services were a lack of availability, accessibility, affordability and healthcare system.Contribution: The recommended strategy for childhood eye-care services includes models for delivery and training.
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Accesibilidad a los Servicios de Salud , Trastornos de la Visión , Humanos , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Niño , África , Trastornos de la Visión/terapia , Atención Primaria de Salud/estadística & datos numéricos , Errores de Refracción/terapia , Preescolar , Conocimientos, Actitudes y Práctica en SaludRESUMEN
Visual impairment due to ophthalmological diseases significantly affects functional activity in everyday life, since good eyesight is crucial in daily activities. Data from 837 respondents were studied, allowing for analysis of such medical and demographic indicators as age, gender, level of education, visual acuity arterial hypertension and diabetes mellitus. To measure functional status, the main activities in daily life (ADL) and instrumental activities in daily life (IADL) were evaluated using a modified version of the Katz scale and the IADL OARS scale. Statistical methods of Mantel-Hansel Chi-squared analysis were used to assess differences in the prevalence of functional blindness and visual deficit. The study showed that medical and demographic factors have a relatively smaller impact on vision deficiency compared to functional blindness, with age being a significant factor in both cases. Among the medical and demographic factors, the age of patients, as well as diabetes mellitus, significantly increase the development of visual deficiency and functional blindness. Functional blindness, in comparison with visual deficiency, causes more significant restrictions on activities in everyday life and instrumental activities in everyday life, and also causes dependence on help from others.
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Actividades Cotidianas , Trastornos de la Visión , Humanos , Femenino , Masculino , Anciano , Trastornos de la Visión/epidemiología , Trastornos de la Visión/fisiopatología , Trastornos de la Visión/etiología , Agudeza Visual , Ceguera/epidemiología , Ceguera/etiología , Ceguera/fisiopatología , Persona de Mediana Edad , Federación de Rusia/epidemiología , Anciano de 80 o más Años , Factores de EdadRESUMEN
This report from the field provides an overview of Ophthalmology Nights at the Free Clinic at Lubbock Impact, highlighting its challenges and its usefulness in combating disparities in visual care accessibility for our high-risk population.
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Accesibilidad a los Servicios de Salud , Oftalmología , Humanos , Femenino , Masculino , Persona de Mediana Edad , Adulto , Disparidades en Atención de Salud , Anciano , Instituciones de Atención Ambulatoria/organización & administración , Trastornos de la Visión/terapiaRESUMEN
Herein, we present two cases of isolated suprasellar dissemination of glioblastoma in patients with well-controlled primary lesions. A 22-year-old woman and a 56-year-old woman developed rapid growth of suprasellar glioblastoma dissemination 26 and 17 months after initial surgery, respectively. Both patients presented with acute visual impairment (decreased acuity and visual field disturbances) but lacked severe pituitary dysfunction. During surgery for the disseminated tumors, gross total tumor resection was difficult due to intraoperative findings suggesting optic pathway invasion. Both patients developed further intracranial dissemination within several months post-surgery. The presence of solitary sellar and suprasellar dissemination may indicate a terminal stage.
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Glioblastoma , Neoplasias Hipofisarias , Silla Turca , Humanos , Femenino , Glioblastoma/cirugía , Glioblastoma/patología , Glioblastoma/diagnóstico por imagen , Persona de Mediana Edad , Silla Turca/cirugía , Silla Turca/patología , Silla Turca/diagnóstico por imagen , Adulto Joven , Neoplasias Hipofisarias/cirugía , Neoplasias Hipofisarias/patología , Neoplasias Hipofisarias/diagnóstico por imagen , Imagen por Resonancia Magnética , Neoplasias Encefálicas/cirugía , Neoplasias Encefálicas/patología , Neoplasias Encefálicas/diagnóstico por imagen , Trastornos de la Visión/etiología , Trastornos de la Visión/cirugía , Invasividad Neoplásica , Procedimientos Neuroquirúrgicos/métodosRESUMEN
More than twelve million US adults ages forty and older are affected by vision impairment, and projections suggest that this number will double by 2050. Although most vision impairment can be eliminated with corrective lenses, many adults lack access to routine eye care. In this study, we analyzed detailed state-by-state Medicaid policies for 2022 and documented variability in coverage for adult vision services. Most fee-for-service Medicaid programs covered routine eye exams, although many did not cover glasses (twenty states) or low vision aids (thirty-five states), and about two-thirds of states with routine coverage required enrollee cost sharing. Managed care plans generally provided consistent or enhanced coverage relative to fee-for-service programs, although coverage sometimes varied between plans within a state. We estimated that about 6.5 million and 14.6 million adult enrollees resided in states without comprehensive coverage for routine eye exams and glasses, respectively. These findings reveal important gaps and opportunities for states to increase access to routine vision care.
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Cobertura del Seguro , Medicaid , Humanos , Estados Unidos , Adulto , Cobertura del Seguro/estadística & datos numéricos , Accesibilidad a los Servicios de Salud , Persona de Mediana Edad , Planes de Aranceles por Servicios , Anteojos/economía , Pruebas de Visión , Masculino , Trastornos de la Visión/terapia , Femenino , Programas Controlados de Atención en Salud , AncianoRESUMEN
Neuro-ophthalmic evaluation is a crucial component of the diagnostic and prognostic assessment of pituitary disease and compressive chiasmopathy, and can inform the timing of vision-restoring tumour resection surgery. The most common disease affecting the pituitary with neuro-ophthalmic implications are pituitary adenomas. Neuro-ophthalmic manifestations include decreased vision, abnormal colour vision and impaired visual field or diplopia. The recognition of these syndromes is critical to achieve early diagnosis and treatment and to improve prognosis. The pattern of vision loss in chiasmal compression is determined by the anatomical relationship between the pituitary lesion and optic chiasm, and potential visual field defects include bitemporal deficits, junctional scotomas, monocular cecocentral defects, and incongruous homonymous hemianopias. Rarer neuro-ophthalmic manifestations of pituitary disease include ophthalmoplegia, nystagmus, and obstructive hydrocephalus. There is growing evidence that demonstrates the strong diagnostic utility of optical coherence tomography (OCT) parameters in detecting the presence of compressive chiasmopathy, as well as the prognostic ability to predict the rate and degree of visual recovery following decompression surgery. Long-term neuro-ophthalmic monitoring is critical for detecting delayed vision loss following resection surgery, which may represent tumour recurrence or secondary complications.
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Quiasma Óptico , Humanos , Quiasma Óptico/patología , Enfermedades de la Hipófisis/diagnóstico , Enfermedades de la Hipófisis/terapia , Tomografía de Coherencia Óptica , Trastornos de la Visión/diagnóstico , Trastornos de la Visión/etiología , Trastornos de la Visión/fisiopatología , Neoplasias Hipofisarias/diagnóstico , Neoplasias Hipofisarias/terapia , Neoplasias Hipofisarias/complicaciones , Campos Visuales/fisiologíaRESUMEN
PURPOSE OF REVIEW: Vitreous floaters, characterized by the perception of spots or shadows in the visual field, commonly result from posterior vitreous detachment and can cause chronic symptoms in affected patients. The diagnosis of posterior vitreous detachment is typically determined clinically and can sometimes be confirmed with optical coherence topography (OCT) [1 âªâª ] . The objective of this review is to review management options for symptomatic vitreous floaters. RECENT FINDINGS: Symptoms of vitreous floaters may be mild or may significantly affect patient quality of life. Observation is the most common management strategy. Procedural management options include pars plana vitrectomy (PPV) and neodymium-doped yttrium aluminium garnet (Nd:YAG) vitreolysis. PPV is considered the most definitive management option for vitreous floaters. PPV, however, carries inherent risks, notably infection, cataract formation, and retinal detachment [2] . Nd:YAG laser vitreolysis is a less invasive alternative with studies demonstrating varied success [1 âªâª ,3,4] . SUMMARY: This review provides insights into the current state of knowledge regarding the management of vitreous floaters and can guide clinical decision-making.
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Trastornos de la Visión , Vitrectomía , Cuerpo Vítreo , Desprendimiento del Vítreo , Humanos , Terapia por Láser/métodos , Láseres de Estado Sólido/uso terapéutico , Tomografía de Coherencia Óptica , Trastornos de la Visión/diagnóstico , Trastornos de la Visión/patología , Trastornos de la Visión/cirugía , Vitrectomía/métodos , Cuerpo Vítreo/cirugía , Cuerpo Vítreo/patología , Desprendimiento del Vítreo/diagnóstico , Desprendimiento del Vítreo/patología , Desprendimiento del Vítreo/terapiaRESUMEN
OBJECTIVE: To investigate differential associations of traditional and novel adiposity indices with visual impairment (VI) in the middle-aged and older Chinese population. METHODS AND ANALYSIS: Based on the China Health and Retirement Longitudinal Study, 7750 Chinese older adults aged over 45 were included at baseline 2011, and 4133 participants who accomplished all three interviews from 2011 to 2015 were adapted for longitudinal analyses. We enrolled six adiposity indices, including the body mass index (BMI), waist-to-height ratio (WHtR), weight-adjusted-waist index (WWI), a body shape index (ABSI), body roundness index (BRI) and conicity index (ConI). Visual status and other covariates included sociodemographic characteristics, medical supports and lifestyle-related factors. Cross-sectional correlations were assessed using univariate and multivariate logistic regression analyses. For longitudinal analysis, generalised linear models with generalised estimating equations were used to determine the association between time-varying adiposity and visual status. RESULTS: Higher levels of WHtR/WWI/ABSI/BRI/ConI were significantly associated with an increased prevalence of VI, whereas a higher BMI was associated with a decreased prevalence of VI. Only WWI was significantly related to the prevalence of VI after adjustment for multiple confounders in both cross-sectional and longitudinal analyses (all p values <0.05). The multivariable-adjusted OR (95% CI) of VI associated with the highest (vs lowest) quintile of WWI was 1.900 (1.407 to 2.565). CONCLUSION: WWI is a reliable alternative adiposity index that exhibits a dose-response association with the prevalence of VI in the Chinese population. The WWI-VI correlation may eliminate the obesity paradox in the ophthalmic epidemiological area and indicate the detrimental impact of changes in body composition on VI.
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Adiposidad , Índice de Masa Corporal , Humanos , Femenino , Masculino , Persona de Mediana Edad , Anciano , Estudios Transversales , China/epidemiología , Prevalencia , Trastornos de la Visión/epidemiología , Trastornos de la Visión/fisiopatología , Factores de Riesgo , Antropometría , Estudios Longitudinales , Pueblos del Este de AsiaRESUMEN
OBJECTIVE: To report the relationship between visual impairment (VI) and cognitive impairment (CI) among the older population living in residential care homes in Hyderabad, India. STUDY DESIGN: Cross-sectional study. SETTING: 41 homes for the aged centres in the Hyderabad region. PARTICIPANTS: 965 participants aged ≥60 years from homes for the aged centres. PRIMARY OUTCOME MEASURES: Visual impairment and cognitive impairment. METHODS: The Hindi mini-Mental Status Examination (HMSE) questionnaire was used to assess the cognitive function. The final HMSE score was calculated after excluding vision-dependent tasks (HMSE-VI). A detailed eye examination was conducted, including visual acuity (VA) measurement for distance and near vision, using a standard logarithm of the minimum angle of resolution chart under good illumination. CI was defined as having a HMSE-VI score of ≤17. VI was defined as presenting VA worse than 6/12 in the better-seeing eye. Near VI (NVI) was defined as binocular presenting near vision worse than N8 and distance VA of 6/18 or better in the better-seeing eye. Multiple logistic regression was done to assess the association between VI and CI. RESULTS: The mean age (±SD) was 74.3 (±8.3) years (range: 60-97 years). There were 612 (63.4%) women, and 593 (61.5%) had a school education. In total, 260 (26.9%; 95% confidence intervals: 24.2 to 29.9) participants had CI. The prevalence of CI among those with VI was 40.5% compared with 14.6% among those without VI (p<0.01). The logistic regression analysis showed that the participants with VI for distance vision had three times higher odds of having CI (OR 3.09; 95% confidence intervals: 2.13 to 4.47; p<0.01). Similarly, participants with NVI had two times higher odds of having CI (OR 2.11; 95% confidence intervals: 1.36 to 3.29; p<0.01) after adjusting for other covariates. CONCLUSIONS: CI was highly prevalent among those with distance and near VI. VI was independently and positively associated with CI after adjusting for potential confounders. Interventions can be planned to address VI in this vulnerable population which could have a ripple effect in preventing cognitive decline.
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Disfunción Cognitiva , Hogares para Ancianos , Trastornos de la Visión , Agudeza Visual , Humanos , Estudios Transversales , Femenino , Anciano , Masculino , India/epidemiología , Disfunción Cognitiva/epidemiología , Trastornos de la Visión/epidemiología , Anciano de 80 o más Años , Persona de Mediana Edad , Hogares para Ancianos/estadística & datos numéricos , Modelos Logísticos , Prevalencia , Pruebas de Estado Mental y DemenciaRESUMEN
Nowadays many patients are choosing EDOF or multifocal lenses for replacement of natural lens in cataract surgery. This can result in issues such as presence of dysphotopsias, namely halo and glare. In this work, we propose a new perimetry method to describe dysphotopsias in far-field region in a presence of bright, point-like light source. We constructed a custom device and designed measurement procedure for quantitative measurement of dysphotopias in the center of visual field and used it to examine patients with mild cataracts or implanted IOLs. Our approach may help in establishing an objective method to study and compare dysphotopsias.
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Catarata , Humanos , Catarata/fisiopatología , Anciano , Masculino , Femenino , Persona de Mediana Edad , Extracción de Catarata , Trastornos de la Visión/fisiopatología , Trastornos de la Visión/diagnóstico , Lentes Intraoculares , Campos Visuales/fisiología , Pruebas del Campo Visual/métodos , Implantación de Lentes IntraocularesRESUMEN
BACKGROUND: Both food insecurity (FI) and vision impairment (VI), which are linked, have been independently associated with frailty and falls. OBJECTIVES: Understand how FI and VI may together contribute to frailty and fall risk could improve insight into these growing public health challenges. DESIGN, SETTING, PARTICIPANTS, MEASUREMENTS: This study included 5,963 participants aged 65 and older enrolled in the National Health and Aging Trends Study. Participants were divided into four exposure groups ("No FI or VI," "FI, no VI," "VI, no FI," and "Both") based on self-report. The Fried Frailty Index and self-reported falls were assessed annually. We used adjusted logistic and Poisson regression models to examine cross-sectional associations and generalized estimating equations to examine longitudinal associations between FI/VI status and falls and frailty outcomes. RESULTS: Most study participants reported neither FI nor VI (n=5169, 86.7%); however, having both FI and VI (n=57, 1%) was cross-sectionally associated with higher frailty score and higher odds of falling multiple times in the last year. FI and/or VI were longitudinally associated with higher frailty score and increased frailty risk, with the strongest association for Both (RRR=1.29, 95% CI 1.23, 1.58; OR=3.18, 95% CI 1.78, 5.69), and with falling, again highest among those with Both, for one (OR=2.47, 95% CI 1.41, 3.96) and multiple (OR=2.46, 95% CI 1.50, 4.06) falls in the last year. CONCLUSION: Clinical and public health interventions could address the intersection of FI and VI with the aim of ameliorating the impact of these risk factors and health outcomes.
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Accidentes por Caídas , Inseguridad Alimentaria , Fragilidad , Trastornos de la Visión , Humanos , Accidentes por Caídas/estadística & datos numéricos , Masculino , Femenino , Anciano , Fragilidad/epidemiología , Trastornos de la Visión/epidemiología , Estudios Transversales , Factores de Riesgo , Estudios Longitudinales , Anciano de 80 o más Años , Anciano Frágil/estadística & datos numéricos , Estados Unidos/epidemiología , Evaluación Geriátrica/métodos , EnvejecimientoRESUMEN
OBJECTIVES: Sensory impairment is a hypothesized risk factor for cognitive decline; however, the psychosocial pathways are not well understood. We evaluated whether the association between visual impairment (VI) and cognitive decline was partially mediated via depressive symptoms, loneliness, or social activity. METHODS: We used data from 2601 older adults enrolled in the Memory and Aging Project in 1997 and the Minority Aging Research Study in 2004 with neuropsychological tests across five domains measured annually for up to 16 years. VI was assessed with the Rosenbaum Pocket Vision Screener. Depressive symptoms, loneliness, and social activity were self-reported using validated scales. We used structural equation models to estimate the associations of VI with baseline and change in cognitive function, directly and indirectly through each mediator (depressive symptoms, loneliness, and social activity). We evaluated mediation via "psychological distress" using a latent variable combining depressive symptoms and loneliness. RESULTS: The association between VI and global cognitive decline was mediated via lower social activity (indirect effect) [95% confidence interval (CI)] of linear slope: -0.025 (-0.048, -0.011), via loneliness (-0.011 [95% CI: -0.028, -0.002]), and via psychological distress (-0.017 [95% CI: -0.042, -0.003]). We did not find sufficient evidence for mediation via depressive symptoms alone. CONCLUSIONS: The harmful effect of VI on cognitive decline may be partially mediated through loneliness and lower social activity.
Asunto(s)
Disfunción Cognitiva , Soledad , Trastornos de la Visión , Humanos , Soledad/psicología , Femenino , Masculino , Anciano , Disfunción Cognitiva/psicología , Anciano de 80 o más Años , Trastornos de la Visión/psicología , Depresión/psicología , Pruebas Neuropsicológicas , Factores de Riesgo , Persona de Mediana Edad , Participación Social/psicologíaRESUMEN
BACKGROUND/OBJECTIVES: Stroke damage to the primary visual cortex induces large, homonymous visual field defects that impair daily living. Here, we asked if vision-related quality of life (VR-QoL) is impacted by time since stroke. SUBJECTS/METHODS: We conducted a retrospective meta-analysis of 95 occipital stroke patients (female/male = 26/69, 27-78 years old, 0.5-373.5 months poststroke) in whom VR-QoL was estimated using the National Eye Institute Visual Functioning Questionnaire (NEI-VFQ) and its 10-item neuro-ophthalmic supplement (Neuro10). Visual deficit severity was represented by the perimetric mean deviation (PMD) calculated from 24-2 Humphrey visual fields. Data were compared with published cohorts of visually intact controls. The relationship between VR-QoL and time poststroke was assessed across participants, adjusting for deficit severity and age with a multiple linear regression analysis. RESULTS: Occipital stroke patients had significantly lower NEI-VFQ and Neuro10 composite scores than controls. All subscale scores describing specific aspects of visual ability and functioning were impaired except for ocular pain and general health, which did not differ significantly from controls. Surprisingly, visual deficit severity was not correlated with either composite score, both of which increased with time poststroke, even when adjusting for PMD and age. CONCLUSIONS: VR-QoL appears to improve with time postoccipital stroke, irrespective of visual deficit size or patient age at insult. This may reflect the natural development of compensatory strategies and lifestyle adjustments. Thus, future studies examining the impact of rehabilitation on daily living in this patient population should consider the possibility that their VR-QoL may change gradually over time, even without therapeutic intervention.
Asunto(s)
Calidad de Vida , Accidente Cerebrovascular , Humanos , Femenino , Persona de Mediana Edad , Masculino , Accidente Cerebrovascular/fisiopatología , Accidente Cerebrovascular/complicaciones , Anciano , Adulto , Estudios Retrospectivos , Trastornos de la Visión/fisiopatología , Trastornos de la Visión/etiología , Lóbulo Occipital/fisiopatología , Campos Visuales/fisiologíaRESUMEN
Purpose: To investigate the contributions of the microstructural and metabolic brain environment to glaucoma and their association with visual field (VF) loss patterns by using advanced diffusion magnetic resonance imaging (dMRI), proton magnetic resonance spectroscopy (MRS), and clinical ophthalmic measures. Methods: Sixty-nine glaucoma and healthy subjects underwent dMRI and/or MRS at 3 Tesla. Ophthalmic data were collected from VF perimetry and optical coherence tomography. dMRI parameters of microstructural integrity in the optic radiation and MRS-derived neurochemical levels in the visual cortex were compared among early glaucoma, advanced glaucoma, and healthy controls. Multivariate regression was used to correlate neuroimaging metrics with 16 archetypal VF loss patterns. We also ranked neuroimaging, ophthalmic, and demographic attributes in terms of their information gain to determine their importance to glaucoma. Results: In dMRI, decreasing fractional anisotropy, radial kurtosis, and tortuosity and increasing radial diffusivity correlated with greater overall VF loss bilaterally. Regionally, decreasing intra-axonal space and extra-axonal space diffusivities correlated with greater VF loss in the superior-altitudinal area of the right eye and the inferior-altitudinal area of the left eye. In MRS, both early and advanced glaucoma patients had lower gamma-aminobutyric acid (GABA), glutamate, and choline levels than healthy controls. GABA appeared to associate more with superonasal VF loss, and glutamate and choline more with inferior VF loss. Choline ranked third for importance to early glaucoma, whereas radial kurtosis and GABA ranked fourth and fifth for advanced glaucoma. Conclusions: Our findings highlight the importance of non-invasive neuroimaging biomarkers and analytical modeling for unveiling glaucomatous neurodegeneration and how they reflect complementary VF loss patterns.