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    题名 作者 年代 出处 被引量
1Prevalence of asthenopia and its risk factors in Chinese college students显示文摘AIM:To determine the prevalence of asthenopia and identify any associated risk factors in the college students in Xi'an,China. METHODS:From April to September 2012,1 500 students from five universities in Xi'an were selected according to a multi-stage stratified cluster sampling method.Data on demographic features,lifestyle or dietary habits,health status,living environment conditions,sleep and mental status,and asthenopia symptoms were collected through a self-administered validated questionnaire.Univariate logistic regression and multivariate logistic regression analysis modified by the factor analysis were performed to evaluate risk factors for asthenopia.RESULTS:Fifty-seven percent of the college students complained of asthenopia.Statistically significant risk factors for asthenopia in the univariate analysis included 13 variables.Multivariate analysis revealed a significant relationship between the use of computer and asthenopia(OR 1.21,95% CI:1.09 to 1.35).Good sleep and mental status(OR 0.86,95% CI:0.76 to 0.97),good living environment conditions(OR 0.67,95% CI:0.60 to 0.76),and high intake of green leafy vegetables(OR 0.89,95% CI:0.80 to 0.98) were found to be strong predictors of decreasing the occurrence of asthenopia complaints.CONCLUSION:Asthenopia symptom appeares to be common among college students;and it is strongly associated with computer use,psychosocial state,environment conditions and dietary habits,suggesting that additional studies are warranted to verify these risk factors and establish prevention guidelines,especially for college students.Cheng-Cheng Han Rong Liu Ru-Ru Liu Zhong-Hai Zhu Rong-Bin Yu Le Ma 2013International Journal of Ophthalmology(English edition)2013,6,5:12
2Role of short-wavelength filtering lenses in delaying myopia progression and amelioration of asthenopia in juveniles显示文摘AIM: To evaluate the positive effects of blue-violet light filtering lenses in delaying myopia and relieving asthenopia in juveniles.METHODS: Sixty ametropia juveniles(aged range,11-15y) were randomized into two groups: the test group(30 children,60 eyes),wearing blue-violet light filtering lenses; and the control group(30 children,60 eyes),wearing ordinary aspherical lenses. Baseline refractive power of the affected eyes and axial length of the two groups was recorded. After 1-year,the patients underwent contrast sensitivity(glare and non-glare under bright and dark conditions),accommodation-related testing,asthenopia questionnaire assessment,and adverse reaction questionnaire assessment. RESULTS: After 1y of wearing the filtering lenses,changes in refractive power and axial length were not significantly different between the two groups(P>0.05). Under bright conditions,the contrast sensitivities at low and mediumfrequency grating(vision angles of 6.3°,4.0°,and 2.5°) with glare in the test group were significantly higher than in the control group(P<0.05),while the contrast sensitivity at low-frequency grating(vision angles of 6.3° and 4.0°) in the absence of glare in the test group was higher than in the control group(P<0.05). Under glare and non-glare dark conditions,the contrast sensitivities of various frequencies in the test group did not show significant differences compared with those in the control group(P>0.05). In the test group,the amplitude of accommodation,accommodative lag,and accommodative sensitivity of patients wearing glasses for 6 and 12 mo were significantly elevated(P<0.05),while the asthenopia gratings were significantly decreased(P<0.05). Nevertheless,in the control group,the amplitude of accommodation,accommodative lag,and accommodative sensitivity after 12 mo were not significantly altered compared with baseline(P>0.05),and the asthenopia grating was not significantly decreased(P>0.05). In addition,after wearing glasses for 6 to 12 mo,the asthenopia grating of patients in the test group decreased significantly compared with the control group(P<0.05). At 12 mo,the constituent ratio of adverse reactions did not show significant difference between the two groups(P>0.05). CONCLUSION: A1-year follow-up reveal that compare with ordinary glasses,short-wavelength filtering lenses(blue/violet-light filters) increase the low-and medium-frequency contrast sensitivity under bright conditions and improved accommodation. They effectively relieved asthenopia without severe adverse reactions,suggesting potential for clinical application. However,no significant advantages in terms of refractive power or axial length progression were found compared with ordinary aspheric lenses.Hai-Lan Zhao Jin Jiang Jie Yu Hai-Ming Xu 2017International Journal of Ophthalmology(English edition)2017,10,8:6
3Fruit and vegetable consumption and its relation to risk of asthenopia among Chinese college students显示文摘AIM: To investigate the associations between fruit and vegetable consumption and risk of asthenopia among Chinese college students.METHODS: A total of 1022 students were selected from five universities by a multi-stage stratified cluster sampling method. They were surveyed via a self-administered questionnaire including socio-demographic features,dietary and lifestyle habits, eye-related symptoms, eye care habits and history of diseases. Ascertainment of asthenopia was based on participants' subjectively reported symptoms. The associations between fruit and vegetable intake with asthenopia risk were assessed using multivariate logistic regression analysis.RESULTS: There were no significant associations between total fruit and vegetable, total vegetable, or fruit and the risk of asthenopia. Higher intake of dark-green leafy vegetable was likely to be inversely associated with asthenopia risk [odd ratio(OR): 0.60; 95%CI: 0.37-0.97;P_(trend)=0.21] after controlling for nondietary and dietary risk factors. Stratified analysis showed that the inverse association between dark-green leafy vegetable intake and asthenopia risk was limited to participants with suboptimal eyesight(OR: 0.45; 95%CI: 0.25-0.82; Ptrend=0.05), wearing glasses(OR: 0.35; 95%CI: 0.17-0.72; Ptrend=0.03) or using computer ≥3 h/d(OR: 0.48; 95%CI: 0.25-0.93; Ptrend=0.08).CONCLUSION: A higher consumption of dark-green leafy vegetable is associated with a lower asthenopia risk among college students with suboptimal eyesight and poor eye care habits.Fang Guo Qiang Zhang Meng-Nan Fan Le Ma Chu Cken Xiao-Hong Liu Hong Jiang Yan Liu 2018International Journal of Ophthalmology(English edition)2018,11,6:4
4Visual and ocular effects from the use of flat-panel displays显示文摘AIM: To evaluate the prevalence of eye symptoms in a non-presbyopic population of video display unit(VDU)users with flat-panel displays.METHODS: One hundred and sixteen VDU users with flat-panel display from an urban population participated in the study; their ages ranging from 20 to 34 y. There were 60 females and 56 males. An eye examination to rule out the presence of significant uncorrected refractive errors, general binocular dysfunctions and eye conditions was carried out. In order to determine and quantify the type and nature of eye symptoms,participants were asked to answer written questionnaire and the results were grouped by gender, age and number of hours a day spent using a VDU. RESULTS: Seventy-two percent of participants reported eye symptoms related to VDU use. Eye symptoms from moderate-to-severe were found in 23%of participants. The main symptom was moderate-to-severe tired eyes(14%); followed by sensitivity to bright lights(12%), blurred vision at far distances(10%),eyestrain or dry eye or irritated or burning eyes(9%),difficulty in refocusing from one distance to another or headache(8%) and blurred vision at near or intermediate distances(<4%). Eye symptoms were greater among females(P =0.005) and increased with VDU use, markedly above 6h spent using a VDU in a typical day(P =0.01).CONCLUSION: Significant eye symptoms relate to VDU use often occur and should not be underestimated. The increasing use of electronic devices with flat-panel display should prompt users to take appropriate measures to prevent or to relieve the eye symptoms arising from their use.Esteban Porcar Alvaro M.Pons Amalia Lorente 2016International Journal of Ophthalmology(English edition)2016,9,6:2
5Development of a new 17-item Asthenopia Survey Questionnaire using Rasch analysis显示文摘AIM:To develop the 17-item Asthenopia Survey Questionnaire(ASQ)-17 by Rasch analysis,and to generate a predictiveness score.METHODS:Totally 739 participants were recruited and 680 were involved in the result analysis in this prospective,cross-sectional study.Three rounds of Rasch analysis were used to analyze the psychometric characteristics of items and options.RESULTS:Phase 1 assessed the original ASQ-19,adjusted the item scoring mode to a four-point Likert response rating scale and combined the 18th and 19th items into a new item.Phase 2 deleted the 11th item.Phases 3 and 4 assessed the new ASQ-17.All the evaluation indexes of ASQ-17 were acceptable.The Infit and Outfit MnSq values of items were 0.67-1.48,the variance explained by the principal component and the unexplained variance explained by the first contrast were 53.90%-59.40%and 1.50-1.80 in three dimensions.The curve peaks of scores in each dimension were separated and in the same order.The PSR and PSI values were 2.80 and 0.89,respectively.The mean scores of dimensions A(9.5±4.1 vs 3.5±3.2),B(7.3±3.3 vs 2.5±2.7),C(4.3±2.2 vs 1.4±2.0)and total(21.1±8.1 vs 7.4±7.0)in asthenopia participants were significantly higher than those without asthenopia(all P<0.001).The area under the curve in two groups was 0.899(P<0.001).Youden’s index was up to the maximum value of 0.784 when the cut-off value was 12.5.CONCLUSION:ASQ-17 has stronger option sorting and suitability than ASQ-19.It is an effective assessment tool for asthenopia with an optimal cut-off threshold value of 12.5,which is suitable for diagnosis and curative effect evaluation.Na Lin Xiao-Man Li Mao-Yuan Yang Li Tian Zhi-Hua Li Jie-Li Mao Jia-Fang Zhang Jie Chen Fan Lyu Ru-Zhi Deng 2023International Journal of Ophthalmology(English edition)2023,16,11:0
6Electroencephalogram characters of parallax stereo watching asthenopia显示文摘The electroencephalogram(EEG)characters value of observers can be deduced by collecting brain electrical information when the observers are watching parallax stereo video.The characters value will change clearly when watching asthenopia appear.To investigate the characters of parallax stereo watching asthenopia,the EEG of observers were recorded through the whole watching process of parallax stereo films until watching asthenopia appeared.The recorded EEG data of observers belongs to time-domain information.Fourier transform can process these data to frequency spectrum information.Theαandβwaves average power can be got by Newton-Cotes equation from the information.The ratio ofβpower to the sum ofαandβpower,CV,can be defined as EEG characters value of parallax stereo watching asthenopia and used to estimate the asthenopia degree of observers.Our experiments show that the smaller the CVis,the more serious the asthenopia is.刘霜 吴平东 黄杰 张贵鑫 杨秋玲 2014Journal of Beijing Institute of Technology2014,23,2:0
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