scholarly journals The response of the accommodation system to digital and print images

2021 ◽  
Vol 80 (1) ◽  
Author(s):  
Minette Devenier ◽  
Rekha Hansraj ◽  
Tuwani Rasengane
Keyword(s):  
Cross Sectional Study ◽  
Tablet Computer ◽  
Sectional Study ◽  
Altman Analysis ◽  
Digital Medium ◽  
Cross Sectional ◽  
Bland Altman Analysis ◽  
Print Medium ◽  
Clinically Significant ◽  
Accommodative Facility

Background: The transition from traditional print medium to a digital medium may affect the accommodative response (AR) because of the differences in the characteristics of the targets viewed.Aim: This study investigated how the accommodation system responded to targets displayed on a tablet computer compared to that on paper.Setting: The study was conducted amongst students at a university in South Africa.Methods: Using a quantitative, cross-sectional study the AR, amplitude of accommodation (AA), and accommodative facility (AF) were assessed with a target on an iPad and a paper-based one on a non-probability sample of 30 university students. Data was analysed using descriptive statistics and Bland Altman plots.Results: The median AR with a tablet was +0.25 dioptre (D) compared to +0.21 D with the paper-based target. This difference was neither statistically nor clinically significant. The median AA with a tablet computer target was 10.59 D and 9.85 D with a paper-based target. While this difference was statistically significant (p = 0.002), Bland Altman analysis revealed comparable measurements with both types of targets. Both Wilcoxon Signed Ranks Test (p = 0.462) and Bland Altman analysis found comparable medians for AF obtained with a target on paper (7.67 cycles per minute [cpm]) and a target on the tablet computer (7.17 cpm) to be comparable.Conclusion: The accuracy, strength and flexibility of accommodation were comparable for tablet computer and paper-based targets.

scholarly journals Comparing School-Aged Refraction Measurements Using the 2WIN-S Portable Refractor in Relation to Cycloplegic Retinoscopy: A Cross-Sectional Study

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Ziming Liu ◽  
Emmanuel Eric Pazo ◽  
Hong Ye ◽  
Cui Yu ◽  
Ling Xu ◽  
...  
Keyword(s):  
Gold Standard ◽  
Intraclass Correlation ◽  
Cross Sectional Study ◽  
Mean Value ◽  
Spherical Equivalent ◽  
Sectional Study ◽  
Altman Analysis ◽  
Cross Sectional ◽  
Bland Altman Analysis ◽  
The Mean

Purpose. To assess the repeatability and agreement of refractive measurements using 2WIN-S photoscreening with the gold-standard cycloplegic retinoscope refraction. Design. Single centre, cross-sectional study. Methods. Spherical, cylindrical, axis, and spherical equivalent of 194 bilateral eyes of 97 children were assessed using a retinoscope and 2WIN-S. One week later, another operator repeated the 2WIN-S measurements. The primary outcome measures were to assess the repeatability and agreement between spherical equivalent, J0, and J45 readings of 2WIN-S. The repeatability of measurements was assessed by the within-subject standard deviation (2.77 Sw) and intraclass correlation coefficient (ICC). The agreement between devices was assessed using 95% limits of agreement. The extent of the agreement between cycloplegic retinoscopy and noncycloplegic 2WIN-S measurements was assessed using Bland–Altman analysis. Results. The mean age ± SD was 10.3 ± 2.46 year (range, 4–14 years). The sphere, cylinder, and spherical equivalent measurements were found to be consistent with both apparatus (r value >0.86). ICC for SE, J0, and J45 was 0.900, 0.666, and 0.639, respectively; Sw for SE, J0, and J45 was 0.61D, 0.30D, and 0.31D, respectively; Bland–Altman analysis of retinoscopy with cycloplegia and 2WIN-S for SE was 184/194 (95%) in 95% confidence interval, and the mean value was 0.46. J0 was 184/194 (95%), and the mean value is −0.04. J45 was 181/194 (93%), and the mean value is −0.15. Conclusion. The objective refractive measurement of 2WIN-S had good reliability and high agreement with the gold-standard retinoscopy refraction in children and adolescents. While consistency was observed, it is essential to take into consideration that it is a screening tool.

Usability of a tablet computer designed for older adults: a qualitative approach based on an intra-hospital living-lab for healthcare (Preprint)

2020 ◽  
Author(s):  
Guillaume Sacco ◽  
Pauline Carliez ◽  
Frédéric Noublanche ◽  
Romain Simon ◽  
Anne Renaudin ◽  
...  
Keyword(s):  
Older Adults ◽  
Geriatric Patients ◽  
Healthcare Professionals ◽  
Cross Sectional Study ◽  
Satisfaction Score ◽  
Tablet Computer ◽  
Sectional Study ◽  
Cross Sectional ◽  
System Usability Scale ◽  
Perceived Usability

BACKGROUND Usability is the keystone in the evolution of tablet technology in healthcare. The Ardoiz® tablet has been designed with a simplified interface for older adults. OBJECTIVE To assess the perceived usability and satisfaction of the Ardoiz® tablet. METHODS We conducted a mixed methods with cross-sectional study using System Usability Scale (SUS), satisfaction score and workshops, including geriatric patients, healthcare professional and caregivers. RESULTS Between September 25, 2019 and March 11, 2020, 58 participants were included in a cross-sectional study (including 38 patients, mean ±SD 85±6 years, 66% women), 26 in workshops (including 5 patients, mean ±SD 86.4±2.9, 40% women). The SUS was 74±12/100, the satisfaction score was 2.8±0.9/4, with 59% of satisfied participants with the use of Ardoiz® pads. The intent to acquire remained low with 18% (n=6) of participants who would be interested in acquiring the tablet. This tablet computer seemed to be difficult to use by geriatric patients and healthcare professionals, mainly because of its complex homepage. Nevertheless, former caregivers and healthcare professionals thought that the tablet could be of great interest to hospitals for leisure and medical use. The main feedback in order to improve the tablet is to simplify the home page with fewer and more static icons (without switching). CONCLUSIONS Notwithstanding the usability of the tablet, the intent to acquire of Ardoiz® tablet remained low. The interface should be simplified for older adults in order to improve usability and adherence. CLINICALTRIAL NCT04091152

scholarly journals Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in Finland

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Toni Kiljander ◽  
Tuija Poussa ◽  
Timo Helin ◽  
Antero Jaakkola ◽  
Kari Venho ◽  
...  
Keyword(s):  
Symptom Control ◽  
Cross Sectional Study ◽  
Smoking History ◽  
Sectional Study ◽  
Cross Sectional ◽  
Clinically Significant

scholarly journals Symptom control among asthmatics with a clinically significant smoking history: a cross-sectional study in Finland

2020 ◽  
Author(s):  
Toni Kiljander ◽  
Tuija Poussa ◽  
Timo Helin ◽  
Antero Jaakkola ◽  
Kari Venho ◽  
...  
Keyword(s):  
Asthma Symptom ◽  
Smoking Status ◽  
Symptom Control ◽  
Cross Sectional Study ◽  
Smoking History ◽  
Sectional Study ◽  
Uncontrolled Asthma ◽  
Cross Sectional ◽  
History Of ◽  
Clinically Significant

Abstract Background Surprisingly little is known about asthma control among asthmatics who smoke. The aim of this cross-sectional study was to investigate asthma symptom control according to the GINA guidelines among asthmatics with a clinically significant smoking history. Methods One hundred ninety asthmatics from primary care in Finland were investigated. The patients were current or previous cigarette smokers with a history of 10 or more pack-years. They completed a questionnaire including questions on asthma symptoms and reliever use so that their level of asthma symptom control (well controlled, partly controlled, or uncontrolled) according to GINA could be determined. Results Sixty-six (34.7%) patients had their asthma well controlled, 81 (42.6%) had their asthma partly controlled, and 43 (22.6%) had uncontrolled asthma. Current smokers had uncontrolled asthma more often than ex-smokers, OR 2.54 (95% CI 1.25-5.14, p=0.01). Patients with moderate to severe asthma exacerbation during the previous year had uncontrolled asthma more often than patients without an exacerbation, OR 2.17 (95% CI 1.06-4.47, p=0.04), and patients with FEV1 < 80% of predicted had uncontrolled asthma more often than patients with FEV1 > 80% of predicted, OR 2.04 (95% CI 1.02-4.08, p=0.04). Conclusions Asthmatic patients with a clinically significant smoking history often do not have well controlled asthma. Poor asthma symptom control was associated with current smoking status, history of exacerbations and impaired lung function. Therefore, every attempt should be made to help asthmatics who smoke to quit smoking.

scholarly journals Strabismus prevalence and associated factors among pediatric patients in southern Ethiopia: a cross-sectional study

2020 ◽  
Vol 48 (10) ◽  
pp. 030006052096433
Author(s):  
Bekalu Getahun Agaje ◽  
Demoze Delelegne ◽  
Elias Abera ◽  
Kindie Desta ◽  
Mikael Girum ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Refractive Error ◽  
Associated Factors ◽  
Cross Sectional Study ◽  
Southern Ethiopia ◽  
Sectional Study ◽  
Early Screening ◽  
Cross Sectional ◽  
Department Of Ophthalmology ◽  
Clinically Significant

Objective To assess the strabismus prevalence and associated factors among children aged ≤15 years. Methods This hospital-based cross-sectional study was conducted from March 2017 to October 2017 in the Department of Ophthalmology & Optometry, Hawassa University Comprehensive Specialized Hospital. Interviewer-administered questionnaires were used to collect relevant data and clinical examinations were performed for patient diagnosis. Results Overall, 582 children participated in the study (response rate, 97%). The prevalence of childhood strabismus was 17.9% [95% confidence interval: 14.6–21.1]. Additionally, 9.6%, 16.7%, and 9.6% of the children had anisometropia, amblyopia, and dense cataract, respectively. Among the 16.7% of children with amblyopia, 56.7% had strabismus; among the 22.5% of children with clinically significant refractive error, 52.7% had strabismus. Moreover, among the 9.6% of children with anisometropia, 58.9% had strabismus. The presence of amblyopia (adjusted odds ratio [95% confidence interval]: 3.9, 1.7–8.6), age <5 years (13.5 [5.0–36.1]), age 5 to 10 years (6.1 [2.3–16.3]), and clinically significant refractive error (13.3 [5.8–30.6]) were significantly associated with childhood strabismus. Conclusions The prevalence of strabismus was relatively high among patients in this study. Early screening for childhood strabismus is essential. A well-controlled community-based study is needed to confirm strabismus prevalence and predictors.

scholarly journals Mental Health Consequences of Lockdown During the COVID-19 Pandemic: A Cross-Sectional Study

2021 ◽  
Vol 12 ◽  
Author(s):  
Ahmed Msherghi ◽  
Ali Alsuyihili ◽  
Ahmed Alsoufi ◽  
Aimen Ashini ◽  
Zenib Alkshik ◽  
...  
Keyword(s):  
Demographic Data ◽  
Cross Sectional Study ◽  
Anxiety Symptoms ◽  
Psychological Status ◽  
Sectional Study ◽  
Cross Sectional ◽  
The Family ◽  
Clinically Significant ◽  
Study Participants ◽  
Libyan Population

ObjectiveWe aimed to provide an overview of the psychological status and behavioral consequences of the lockdown during the COVID-19 pandemic in Libya.MethodsA cross-sectional study was conducted among the Libyan population through May and June 2020 in more than 20 cities. The survey comprised basic demographic data of the participants and anxiety symptoms measured using the seven-item Generalized Anxiety Disorder scale (GAD-7) with ≥15 as the cut-off score for clinically significant anxiety symptoms. Additionally, a survey regarding the lockdown effect was administered, which consisted of several parts, to measure the lockdown status.ResultsA total of 8084 responses were recorded, of which, 5090 (63%) were women and 2994 (37%) were men. The mean age (SD) for study participants was 27.2 (8.9) years. Among the participants, 1145 (14.2%) reached the cut-off score to detect anxiety symptoms; however, of the study variables, only five were predictors of clinically significant anxiety: age, gender, marital status, work status, being a financial supporter for the family, and being infected with COVID-19. Women had 1.19 times higher odds to exhibit anxiety symptoms than men. Increasing age was significantly associated with reduced likelihood of exhibiting anxiety symptoms, whereas being married was significantly associated with higher likelihood of anxiety symptoms, compared to not being married. Being suspended from work was associated with an increase in the likelihood of anxiety symptoms. However, we found that being infected with COVID-19 was associated with a 9.59 times higher risk of exhibiting severe anxiety symptoms. Among the study participants, 1451 (17.9%) reported a physical and/or verbal abuse episode from family members, 958 (11.9%) reported abuse outside the family, and 641 (7.9%) reported abuse from enforcers, during the lockdown.ConclusionOur study provided an overview of the psychological and behavioral status, among those who resided in Libya during the civil war and COVID-19 pandemic. The study demonstrates a concerningly high level of clinically significant anxiety during lockdown among the Libyan population during Libya’s lockdown period.

scholarly journals Quality of Life in Patients with Larynx Cancer in Latin America: Comparison between Laryngectomy and Organ Preservation Protocols

2018 ◽  
Vol 97 (3) ◽  
pp. 83-90 ◽  
Author(s):  
Alvaro Sanabria ◽  
Daniel Sánchez ◽  
Andrés Chala ◽  
Andres Alvarez
Keyword(s):  
Quality Of Life ◽  
Latin America ◽  
Organ Preservation ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Laryngeal Tumors ◽  
Clinically Significant ◽  
The University

The effect on quality of life (QOL) of laryngectomy and organ preservation protocols is important in decision making. The aim of this cross-sectional study was to evaluate QOL outcomes of patients with advanced laryngeal tumors who were treated with laryngectomy or organ preservation protocols in Latin America. A total of 35 patients from three oncology units were enrolled. Patients with stage III/IV laryngeal cancer who were treated using organ preservation protocols or laryngectomy were assessed with the University of Washington QOL Questionnaire. The most important domains that affected QOL for both groups were speech and activity. In the laryngectomy group, the next most important domains were appearance, taste, pain, and recreation, whereas in the organ preservation group, they were saliva, recreation, mood, and swallowing. There were no statistically or clinically significant differences in the global score or the 7 days of QOL assessments before patients were interviewed. Global QOL assessments were similar when comparing laryngectomy and organ preservation protocols.

scholarly journals PENGUKURAN JUMLAH LIMFOSIT CD4 METODE PANLEUCOGATING PADA PASIEN TERINFEKSI HUMAN IMMUNODEFICIENCY VIRUS (HIV)

2016 ◽  
Vol 19 (3) ◽  
pp. 190
Author(s):  
Umi S. Intansari ◽  
Budi Mulyono ◽  
Usi Sukorini
Keyword(s):  
Flow Cytometric Analysis ◽  
Clinical Pathology ◽  
Cross Sectional Study ◽  
Altman Analysis ◽  
Cross Sectional ◽  
Bland Altman Analysis ◽  
Flow Cytometric ◽  
Percentage Difference ◽  
Immunodeficiency Virus ◽  
Good Agreement

The standard method for absolute lymphocyte CD4 count is by the use of flow cytometric analysis, but due to the high costly matter,a simpler method and less costly fee of PanLeucogating dual platform is needed. The aim of this study is to know how to replace the single platform by PanLeucogating dual platform by determining the agreement between both methods and to test the proportion of patient who have CD4 <200 cell/ul measured by PanLeucogating and single platform method. A cross sectional study was carried out in the Departement of Clinical Pathology Faculty of Medicine Gadjah Mada University Yogyakarta. The inclusion criteria of the study are HIV/AIDS patients who their CD4 were measured. Absolute count of CD4 was using FACS Calibur measured with both PanLeucogating and single platform method. The bias, correlation, regression and limit of agreement between both methods were analyzed using Bland Altman analysis to decide whether the two methods are interchangeable. The result of the study revealed an excellent correlation between the two methods (r=0.996; y=- 0.906 + 0.0.987). Bland Altman analysis revealed bias=5 cells/uL; standard deviation=18.7 and Limit of agreement (LOA)=-31.6 – 40.75. The Mean Percentage Difference (MPD)=2%; dan%LOA=-7.96 – 12.5%. PanLeucogating method has a good agreement with the single platform method and can be used interchangeable. There was no difference of the proportion of patient who has CD4 <200 cell/ul measured by Panleucogating method and single platform.

Sign in / Sign up

Export Citation Format

Share Document