Effects of color in humans generated by led lighting systems

This research evaluates the effects of color in humans generated by LED lighting systems. This evaluation allows us to know the different parameters that these systems generate, such as: the temperature and color of light suitable for human vision and thus be able to implement them in LED lighting designs for work areas. Having an adequate lighting system contributes to visual health and safety by avoiding work accidents. Each color has a different percentage of light reflection and in the same way each color affects us optically and psychologically by causing different sensations and perceptions in human beings such as visual fatigue, exhaustion, eye disorders, lacrimation, irritation, stress, migraines and even impaired vision Taking care of visual health is of vital importance. The methodology for evaluating lighting designs will be with NOM-030-ENER-2012. The contribution of this research will be to know the optimal colors and color temperature of light to use in LED lighting systems and to help lighting system designers in the selection of suitable LEDs and area colors that contribute to the visual health of humans

Eye and Visual Health in New England: Findings from the Healthy Aging Data Reports

Eye and visual health issues in older adults are prevalent, often undetected and untreated, but can contribute to poor physical and mental health issues, and higher mortality rates. The study describes state and local community rates of eye and visual health indicators (cataract, glaucoma, self-reported vision difficulty, and clinical diagnosis of blindness or visual impairment) of older adults 65+ in MA, NH, RI, and CT. Data sources used to calculate rates were: the American Community Survey (2014-2018 RI, 2012-2016 MA and NH, 2014-2018 CT) and the Medicare Current Beneficiary Summary File (2016-2017 RI, 2015 MA and NH, 2016-2017 CT). Small area estimation techniques were used to calculate age-sex adjusted community rates for more than 150 health indicators (https://healthyagingdatareports.org/). Disparities in rates were examined for 4 eye and visual health indicators: cataract, glaucoma, self-reported vision difficulty, and clinical diagnosis of blindness or visual impairment. Results showed variability in rates across states. MA had the highest rates of self-reported vision difficulty (5.8%) and blindness or visual impairment (1.5%), and the greatest differences in rates of self-reported vision difficulty (0.00-40.91%). CT had the highest rates of glaucoma (28.3%), and the greatest differences in rates of glaucoma (19.51-41.91%) and blindness or visual impairment (0.44-4.39%). RI had the highest rates of cataract (67.5%). Understanding the distribution of community rates makes disparities evident, and may help practitioners and policymakers to allocate resources to areas of highest need.

Influence of Vision on Drivers: A Pilot Study

Background: Driving is the main mode of transportation in many countries, and visual safety depends largely on good visual health. The objective of this study is to analyze the visual health of Spanish drivers; as well as analyze the difference between professional and non-professional drivers. Methods: A visual screening was carried out in Spanish drivers from all over Spain, in which the following tests were performed: monocular visual acuity in distance and near vision, visual field, stereopsis, contrast sensitivity, intraocular pressure and balance test binocular. Subsequently, a questionnaire was carried out on the patient’s driving data and ocular antecedents. Results: 74.5% of the drivers used glasses to drive, of which 61.5% used progressive glasses. However, 39.4% reported having difficulties seeing well. The mean visual acuity in the distance and near was 0.93 ± 0.13 and 0.94 ± 0.13, respectively. Significant differences have been found in accident risk based on visual acuity (p < 0.001). But no significant differences have been found in terms of visual field, stereopsis, contrast sensitivity, binocular balance and intraocular pressure (p > 0.05). Conclusion: Vision appears to play a key role in driving and a good visual assessment is recommended for early detection of visual problems that may affect road safety. A study with a larger sample size would be necessary to confirm the results of this pilot study.

Pengaruh Pendidikan Kesehatan dengan Audio Visual Terhadap Pengetahuan tentang Covid-19 pada Siswa Kelas 3 SD

Introduction: Most of the students knowledge of preventing COVID-19 is still a little less good. One of the effort to break the chain of transmission of the COVID-19 virus is by provoding audio-visual health education. Methods: The research design used Quasi Eksperimental with one-group pre-post test design. The sample taken in this study were 34 respondents who used purposive sampling technique, the instrument used was a questionnaire sheet with a Guttman scale. Results: This study describes the majority of the distribution on knowledge before being given treatment as many as 18 responden (52,9%) lacking knowledge and the frequency distribution of knowledge after being given treatment as many as 18 respondent (52,9%) having good knowledge, this study describes the effect of health education with audio visuals on knowledge of COVID-19 in grade 3 (p = 0,000). Discussion: From the results of the research conducted, it can be concluded that there is an increase in knowledge about COVID-19 after being given audio visual health education.

Evaluación del proceso enseñanza aprendizaje vinculado a la Comunidad las Vivianas, en el CICS UMA IPN

Una de las responsabilidades apremiantes de la educación en México es dar respuesta de calidad a las necesidades en materia de formación de profesionales competentes para la solución de los problemas que se presentan en las distintas áreas del quehacer social. De ahí que una preocupación permanente de las instituciones educativas es establecer sistemas de evaluación que evidencien que se logra el objetivo en materia de formación profesional. En el Centro Interdisciplinario de Ciencias de la Salud, Unidad Milpa Alta, del Instituto Politécnico Nacional (CICS-UMA. IPN) se está aplicando un sistema de aprendizaje basado en la investigación con responsabilidad social, mismo que nos ha permitido operar las unidades de aprendizaje, integradas en la etapa terminal del Programa Académico de Optometría, aplicarlas a la solución de problemas sociales mediante la práctica comunitaria y de esta manera evaluar realmente la calidad del futuro profesional. Es en la comunidad donde nuestros estudiantes deben demostrar mediante la aplicación de protocolos de atención basados en la investigación, que han adquirido los conocimientos cognitivos y procedimentales y su aplicación con un sentido ético basado en las normas morales que se observan en las comunidades objeto de estudio y servicio en el campo de la salud visual. One of the pressing responsibilities of education in Mexico is to provide quality response to the needs in training of competent professionals to solve problems that arise in different areas of social life. Hence a permanent concern of educational institutions is to establish evaluation systems that demonstrate that the objective is achieved in vocational training. In the Interdisciplinary Center for Health Sciences, Unit Milpa Alta, the National Polytechnic Institute (CICS-UMA. IPN) is applying a learning system based on research with social responsibility, it has allowed us to operate the learning units integrated in the terminal stage of the Academic Program Optometry, apply them to solving social problems through community practice and thus really evaluate the quality of professional future. It is in the community where our students must demonstrate through application of treatment protocols based on research, that have acquired cognitive and procedural knowledge and its application with an ethical sense based on moral standards observed in the communities under study and service in the field of visual health.

Visual Health and its Relationship with Screen Time among School Children: A Cross-Sectional Study in Sarawak, Malaysia

<p class="0abstract"><strong>Objective: </strong>This study intended to determine visual health of the school children and investigate its relationship with screen time. <strong>Methods: </strong>This was a school-based cross-sectional study using multistage cluster sampling. A self-reported and interviewer-administered questionnaire were used to compile screen time information. Children presenting visual acuity was evaluated with Snellen chart and non-cycloplegic refraction was performed to those acuities worse than 6/12. Data analysis was performed using SPSS version 22. A p-value ≤0.05 with 95% CI was considered as statistically significant. <strong>Results: </strong>About 87% children had normal or near normal visual acuity and 13% had visual impairment. The prevalence of refractive error was 22.8%. Astigmatism was the most prevailing type of refractive error, 10%. The children spent on average of 13.82 hours per week on screen time. Television is the most popular electronic devices. Boy spent more time on gaming consoles than girl. There was no statistically significant relationship between refractive error and screen time (p=0.581). <strong>Conclusion: </strong>The prevalence of refractive error among school children was 23%. The children spent nearly 14 hours per week on screen time. There was no statistically significant relationship between refractive error and screen time. Periodical children vision screening is paramount for early detection of vision impairment and provide possible intervention.</p>

Magnitude and causes of visual impairment amongst school children in the Bono Region of Ghana

Background: Information on the visual health of school children can assist in developing strategies to reduce preventable causes of visual impairment (VI) and maintain good vision.Aim: This study aimed to determine the magnitude and causes of VI amongst basic school children aged 6–16 years in the Bono Region of Ghana.Setting: The study site included five basic schools in 12 administrative districts of the Bono Region of Ghana.Methods: A multistage random sampling technique was used to enrol 645 participants from five selected public schools.Results: Overall, 1.4% of the sample had some form of VI that was worse than mild or no VI, and ocular conditions were present amongst 45.1% of the participants. Uncorrected refractive error (URE) was found amongst 9.8% of the study participants (n = 63) and was an important cause of VI. Other ocular conditions detected in the sample included allergic conjunctivitis (n = 174), cataract (n = 2) and keratoconus (n = 2). Overall, 632 (98.0%) participants recorded a visual acuity (VA) of 20/20 – 20/60, 11 (1.7%) participants had a VA of 20/60 – 20/200, 1 (0.15%) participant had a VA of 20/200 – 10/200 and 1 (0.15%) participant had a VA of 10/200.Conclusion: The presence of ocular conditions was high amongst the study participants (45.1%). However, the prevalence of VI was found to be low (1.4%) with URE being the most common cause. This study supports the need to intensify awareness of ocular conditions and/or VI in basic schools through regular vision health screening and education.