AIM:To understand the current situation of parental perspectives,knowledge,and practices concerning myopia prevention and control for both pre-and school-aged children.METHODS:This study was a cross-sectional survey t...AIM:To understand the current situation of parental perspectives,knowledge,and practices concerning myopia prevention and control for both pre-and school-aged children.METHODS:This study was a cross-sectional survey that involved children aged 0 to 15y and their parents.Participants were required to respond to an online questionnaire by scanning a quick response(QR)code.The questionnaire consisted of 25 tick-box questions and was open to response from December 22,2022,to January 5,2023.The dioptric traits of the children,the visual status and educational background of the parents,the parental perspectives towards myopia and its risks,and the parents’knowledge and practices related to myopia prevention and control were recorded and measured.The Chi-square test and binomial logistic regression were used for statistics.RESULTS:Totally 350 parents responded to the questionnaire.The prevalence and severity of myopia among the surveyed children exhibited a positive correlation with advancing age(P<0.001 and P=0.004,respectively).Nearly half of parents with myopic children considered myopia did not pose any health threat and could be effectively corrected(P<0.001).Parents who held master’s or doctoral degree demonstrated a better understanding of children’s vision standards for each age group(P=0.001),and 31.63% of them could undergo initial vision screening for their children during the age of 0 to 3y while parents with bachelor’s degree(34.04%)and below(32.43%)mainly initiated the vision examination for their children at the age of 4 to 6y(P=0.05).Parents with master’s or doctoral degree also exhibited more rational practices concerning outdoor time(P=0.048)and sleep time(P=0.044).No other significant discrepancy among the different educational groups in additional conceptions of myopia,such as hyperopia reserve,axis length,and corneal curvature alterations.Most parents preferred to employ conventional interventions,such as enhancing indoor lighting condition(80.00%)and ensuring appropriate reading posture and distance(71.71%).CONCLUSION:The current status of parental knowledge and practices about myopia prevention and control remains outdated and deficient.The administrative department should implement efficacious and adaptable measures to enhance parental awareness and foster their commitment towards myopia prevention and control.展开更多
Currently, the number of myopic people in China has reached as high as 600 million, and it shows a trend of “early onset, high incidence, and a high degree of severity”. The issue of myopia among children and adoles...Currently, the number of myopic people in China has reached as high as 600 million, and it shows a trend of “early onset, high incidence, and a high degree of severity”. The issue of myopia among children and adolescents has attracted widespread attention from all sectors of society. Comprehensive myopia prevention and control efforts have been launched nationwide. Popular science education, vision screening, and improving visual environments are effective measures for preventing myopia. However, among the target audience for comprehensive myopia prevention and control, the preschool children group has been neglected, and the work of myopia prevention and control for this group has been significantly weakened and marginalized. Due to insufficient awareness of prevention and control, the hyperopia reserve in the preschool children group is being continuously depleted, leading to the early onset of myopia. In light of this situation, the focus of myopia prevention and control needs to shift forward, and it is worth exploring and pondering how college students with a background in optometry can develop entertaining and engaging popular science education materials and methods.展开更多
Myopia represents a critical public health challenge with far-reaching implications for future development,as global prevalence is projected to reach 49.8%by 2050(1–2).The Chinese government has implemented comprehen...Myopia represents a critical public health challenge with far-reaching implications for future development,as global prevalence is projected to reach 49.8%by 2050(1–2).The Chinese government has implemented comprehensive policies and proactive measures(3–6)to accelerate prevention efforts through systematic interventions.Traditional monitoring approaches have focused primarily on vision screening and diopter examination following myopia onset,thereby lacking early warning systems for tracking hyperopic reserve depletion.Commissioned by the National Disease Control and Prevention Bureau,our team has spearheaded a landmark large-scale monitoring project on hyperopic reserves among children and adolescents since 2020,encompassing ten provincial-level administrative divisions(PLADs;including Beijing,Liaoning,Zhejiang,Henan,Chongqing,Shaanxi,Guangdong,Shanxi,Hunan,and Shandong).展开更多
Objective:To investigate the lifestyle and myopia among primary school students in urban areas of Fujian with the context of myopia prevention and control measures,aiming to provide scientific evidence for identifying...Objective:To investigate the lifestyle and myopia among primary school students in urban areas of Fujian with the context of myopia prevention and control measures,aiming to provide scientific evidence for identifying high-risk myopia population and formulating effective intervention strategies.Methods:A cross-sectional study was conducted from October to November 2023,enrolling 811 fourth-grade students from three primary schools in three cities across Fujian.Personal information and lifestyle-related pattern were collected using customized questionnaire.Participants underwent comprehensive ophthalmic assessments including distance visual acuity tests and refractive examinations.Logistic regression analysis was used to assess the impact of lifestyle on the onset of myopia.Results:The prevalence of myopia among fourth-grade students in urban primary schools in Fujian was 46.4%.Only 25.8%students engaged in outdoor activities for more than 2 hours daily,while63.3%participated in outdoor activities during class breaks.Multivariate Logistic regression analysis revealed that outdoor activities during class breaks(OR=0.646(95%confidence interval(CI):0.473-0.881),P=0.006)and daily time spent outdoors(2-3 hours,OR=0.682(95%CI:0.466-0.993),P=0.047;more than 3 hours,OR=0.403(95%CI:0.192-0.796),P=0.01)were independent protective factors against myopia.Lifestyle significantly enhanced the predictive performance for myopia(P=0.01).Additionally,parental myopia(one parent with myopia,OR=2.247(95%CI:1.612-3.145),P<0.001;both parents with myopia,OR=4.824(95%CI:3.262-7.204),P<0.001)emerged as a key risk factor for myopia.Conclusions:There is considerable scope for improving the lifestyle of primary school students in urban areas of Fujian.Lifestyle is strongly associated with myopia onset,highlighting the need for schools and families to actively encourage students to engage in more outdoor activities and take breaks outdoors to prevent and control myopia.Students with parents,especially both parents,having myopia should be considered as a key target group for myopia prevention efforts.展开更多
In recent years,the incidence of myopia has increased at an alarming rate among children and adolescents in China.The exploration of an effective prevention and control method for myopia is in urgent need.With the dev...In recent years,the incidence of myopia has increased at an alarming rate among children and adolescents in China.The exploration of an effective prevention and control method for myopia is in urgent need.With the development of information technology in the past decade,artificial intelligence with the Internet of Things technology(AIoT)is characterized by strong computing power,advanced algorithm,continuous monitoring,and accurate prediction of long-term progression.Therefore,big data and artificial intelligence technology have the potential to be applied to data mining of myopia etiology and prediction of myopia occurrence and development.More recently,there has been a growing recognition that myopia study involving AIoT needs to undergo a rigorous evaluation to demonstrate robust results.展开更多
Objective: to analyze the effect of visual training in the prevention and control of juvenile myopia. Methods: 100 cases of juvenile myopia treated in our hospital from December 2017 to December 2018 were divided into...Objective: to analyze the effect of visual training in the prevention and control of juvenile myopia. Methods: 100 cases of juvenile myopia treated in our hospital from December 2017 to December 2018 were divided into reference group and experimental group by lot, with 50 cases in each group. The reference group received medical optometry according to the reference requirements, and the experimental group received visual training on the basis of the reference group. The changes of ocular axis length of the two groups after the intervention and the adjustment lag of the two groups before and after the intervention were compared. Results: the length of ocular axis in the experimental group was lower than that in the reference group, and the comparison between the groups had statistical value (P < 0.05);In the comparison of adjustment lag, there was no difference between the two groups before intervention (P > 0.05);After the intervention, the experimental group was lower than the reference group, and there was significant difference between the groups (P < 0.05). Conclusion: in order to reduce juvenile myopia, visual training can delay the growth of ocular axis length, reduce the amount of adjustment lag and myopia, which is conducive to the healthy growth of adolescents.展开更多
AIM:To observe the effect of the plus power ring zone(PPRZ)area and distribution on myopia progression.METHODS:This retrospective study enrolled 137 pre-teens aged 8-12 at Taiyuan Aier Eye Hospital between 2019 and 20...AIM:To observe the effect of the plus power ring zone(PPRZ)area and distribution on myopia progression.METHODS:This retrospective study enrolled 137 pre-teens aged 8-12 at Taiyuan Aier Eye Hospital between 2019 and 2021.They were fitted with Ortho-K lenses for the first time due to refractive error,with a one-year follow-up period.To indicate the peripheral plus ring zone overlapping with the pupil zone(PPROPZ)accompanying PPRZ,participants were divided based on the PPROPZ to PPRZ ratio.The experimental group had 103 eyes with a PPROPZ to PPRZ ratio of≥0.2,and the control group had 103 eyes with a ratio of<0.2.Participants had a spherical diopter in the range of-6.00 D to-0.75 D,against-the-rule astigmatism less than 1.00 D,with-the-rule astigmatism less than 1.50 D,and corneal curvatures of 39.00 D to 46.00 D.They had a stable best corrected visual acuity of 0.10 LogMAR(20/25)or better when wearing orthokeratology(Ortho-K)lenses.PPRZ and PPROPZ were measured using ImageJ;corneal topography assessed corneal-related parameters,and an optical biometer measured the axial length of the eyes pre and post-one years of lens wear.RESULTS:Changes in axial length elongation were found to decrease when either the PPRZ(P<0.01)or PPROPZ(P<0.001)was increased significantly.The axial length growth was faster in the control group(0.37±0.2 mm)than in the experimental group(0.21±0.11 mm).Furthermore,we found that a larger horizontal visible iris diameter(HVID)corresponded to slower axial growth of the eye.In contrast,axial length growth showed no correlation with surface regularity index(SRI),surface asymmetry index(SAI),flat keratometry value(K_(f)),steep keratometry value(K_(s)).CONCLUSION:For orthokeratology,wearers with larger PPROPZ to PPRZ ratio usually experiences a reduction in axial length growth.The PPRZ and PPROPZ are negatively correlated with the axial length.Our findings provide a recommendation and methods for studying the myopia control mechanism through Ortho-K lenses.展开更多
Objective: to analyze the role of orthokeratology lens (OK lens) in the prevention and control of myopia in adolescents. Methods: a total of 50 adolescent myopic patients who came to our hospital for myopic consultati...Objective: to analyze the role of orthokeratology lens (OK lens) in the prevention and control of myopia in adolescents. Methods: a total of 50 adolescent myopic patients who came to our hospital for myopic consultation and treatment from January 2018 to December 2020 were selected, and they were divided into two groups with 25 cases in each group according to their treatment intention and glasses wearing mode. The myopia patients in the frame group were treated with ordinary frame glasses, and the OK lens group was monitored by AL measurement. The visual acuity, intraocular pressure, AL monitoring and HHK were compared between the two groups before and after treatment. Results: there were no significant changes in visual acuity, intraocular pressure, AL monitoring and HHK between the two groups before treatment (P > 0.05), but there were no significant changes in visual acuity, intraocular pressure, AL monitoring and HHK between the two groups after treatment (P > 0.05). However, the visual acuity, intraocular pressure and HHK of OK mirror group were higher than those before treatment, P < 0.05. AL had no significant change, P > 0.05. Conclusion: AL measuring and monitoring OK lens has better effect on prevention and treatment of myopia than conventional glasses, which is worthy of recommendation for adolescent myopia patients who come to our hospital for consultation and treatment of myopia.展开更多
INTRODUCTION The application of atropine in the prevention and control of myopia was reported as early as the 1970s.1 In recent years,low-concentration atropine has drawn the attention of clinicians and parents of chi...INTRODUCTION The application of atropine in the prevention and control of myopia was reported as early as the 1970s.1 In recent years,low-concentration atropine has drawn the attention of clinicians and parents of children because of its excellent efficacy and safety.Currently,although the national drug regulatory authority has not officially sanctioned the application of low-concentration atropine eye drops in clinical myopia prevention and control,some provincial drug regulatory departments have permitted their use in the form of hospital preparations or obtained through a doctor’s prescription on Internet hospitals.展开更多
Objective: To investigate the current status of health literacy regarding children’s vision protection among preschool teachers and to provide a basis for targeted training. Methods: A convenience sampling method was...Objective: To investigate the current status of health literacy regarding children’s vision protection among preschool teachers and to provide a basis for targeted training. Methods: A convenience sampling method was employed to conduct a questionnaire survey among 1,442 preschool teachers in Xiangyang City from April to June 2024. The questionnaire covered five dimensions: knowledge, beliefs, behaviors, skills, and policies. Item response rates were used to identify literacy gaps. Results: The overall vision protection literacy of preschool teachers exhibited characteristics of “strong beliefs but weak knowledge and skills”. The item response rates for each dimension, from highest to lowest, were: beliefs (92.7%), policies (81.9%), behaviors (74.8%), knowledge (67.5%), and skills (58.3%). The core gaps were concentrated in the “knowledge” and “skills” dimensions, with significant deficiencies particularly in the understanding of the concept of “hyperopia reserve” (awareness rate: 27.6%), skills in guiding behaviors for myopia prevention and control (mastery rate: < 50%), and the ability to interpret vision screening results (complete mastery rate: 35.0%). Conclusion: Currently, there are significant structural deficiencies in the health literacy of kindergarten teachers regarding children’s vision protection. In the future, greater emphasis should be placed on practical skills training, particularly in enhancing their practical abilities in areas such as “hyperopia reserve” cognition and interpretation of vision screening results.展开更多
Introduction:Myopia has emerged as a major public health challenge affecting the visual health of children and adolescents in China.While evidence confirms the effectiveness of outdoor activity in preventing myopia,co...Introduction:Myopia has emerged as a major public health challenge affecting the visual health of children and adolescents in China.While evidence confirms the effectiveness of outdoor activity in preventing myopia,comprehensive economic analyses of its role in mitigating myopia-related diseases remain limited.Methods:This study employed a microsimulation model to evaluate the cost-effectiveness of increasing outdoor activity across different educational stages—primary,middle,and high school—for myopia prevention in China.The model simulated myopia progression among individuals aged 6 to 18 years,with the intervention defined as an additional 40 minutes of daily outdoor activity.Outcomes measured included changes in myopia prevalence,quality-adjusted life years(QALYs),and associated medical costs.Results:All intervention scenarios proved costeffective,except for those targeting only the high school stage.Interventions focused on primary schools and combined primary–middle school stages not only improved health outcomes but also reduced medical costs.While the all-stages intervention yielded the greatest health benefits,its higher implementation costs make it more suitable for regions with greater resources.Conclusion:These findings highlight the critical importance of early intervention in myopia prevention.Policymakers should prioritize outdoor activity programs at the primary school level and develop tailored prevention strategies based on local resource availability.This study provides empirical evidence for developing scientifically sound,cost-effective myopia prevention strategies for children and adolescents,with relevant implications for other developing countries facing a high myopia burden.展开更多
Background:Myopia is the most common visual impairment in children and adolescents worldwide.This study described an economical and effective population-based screening pipeline and performed the project of a million ...Background:Myopia is the most common visual impairment in children and adolescents worldwide.This study described an economical and effective population-based screening pipeline and performed the project of a million scale children and adolescents myopia survey(CAMS),which will shed light on the further study of myopia from the level of epidemiology and precision medicine.Methods:We developed a novel population-based screening pattern,an intelligent screening process and internetbased information transmission and analysis system to carry out the survey consisting of school children in Wenzhou,China.The examination items include unaided distance visual acuity,presenting distance visual acuity,and noncycloplegic autorefraction.Myopia and high myopia were defined as spherical equivalent(SE)≤−1.00 diopters(D)and SE≤−6.00 D,respectively.Next,the reports of the vision checking were automatically sent to parents and the related departments.The CAMS project will be done two to four times annually with the support of the government.An online eyesight status information management system(OESIMS)was developed to construct comprehensive and efficient electronic vision health records(EVHRs)for myopia information inquiry,risk pre-warning,and further study.Results:The CAMS completed the first-round of screening within 30 days for 99.41%of Wenzhou students from districts and counties,in June 2019.A total of 1,060,925 participants were eligible for CAMS and 1,054,251(99.37%participation rate)were selected through data quality control,which comprised 1305 schools,and 580,609,251,050 and 170,967 elementary,middle,and high school students.The mean age of participants was 12.21±3.32 years(6-20 years),the female-to-male ratio was 0.82.The prevalence of myopia in elementary,middle,and high school students was 38.16%,77.52%,and 84.00%,respectively,and the high myopia incidence was 0.95%,6.90%,and 12.98%.Conclusions:The CAMS standardized myopia screening model involves automating large-scale information collection,data transmission,data analysis and early warning,thereby supporting myopia prevention and control.The entire survey reduced 90%of staff,cost,and time consumption compared with previous surveys.This will provide new insights for decision support for public health intervention.展开更多
基金Supported by the National Natural Science Foundation of China(No.82205196).
文摘AIM:To understand the current situation of parental perspectives,knowledge,and practices concerning myopia prevention and control for both pre-and school-aged children.METHODS:This study was a cross-sectional survey that involved children aged 0 to 15y and their parents.Participants were required to respond to an online questionnaire by scanning a quick response(QR)code.The questionnaire consisted of 25 tick-box questions and was open to response from December 22,2022,to January 5,2023.The dioptric traits of the children,the visual status and educational background of the parents,the parental perspectives towards myopia and its risks,and the parents’knowledge and practices related to myopia prevention and control were recorded and measured.The Chi-square test and binomial logistic regression were used for statistics.RESULTS:Totally 350 parents responded to the questionnaire.The prevalence and severity of myopia among the surveyed children exhibited a positive correlation with advancing age(P<0.001 and P=0.004,respectively).Nearly half of parents with myopic children considered myopia did not pose any health threat and could be effectively corrected(P<0.001).Parents who held master’s or doctoral degree demonstrated a better understanding of children’s vision standards for each age group(P=0.001),and 31.63% of them could undergo initial vision screening for their children during the age of 0 to 3y while parents with bachelor’s degree(34.04%)and below(32.43%)mainly initiated the vision examination for their children at the age of 4 to 6y(P=0.05).Parents with master’s or doctoral degree also exhibited more rational practices concerning outdoor time(P=0.048)and sleep time(P=0.044).No other significant discrepancy among the different educational groups in additional conceptions of myopia,such as hyperopia reserve,axis length,and corneal curvature alterations.Most parents preferred to employ conventional interventions,such as enhancing indoor lighting condition(80.00%)and ensuring appropriate reading posture and distance(71.71%).CONCLUSION:The current status of parental knowledge and practices about myopia prevention and control remains outdated and deficient.The administrative department should implement efficacious and adaptable measures to enhance parental awareness and foster their commitment towards myopia prevention and control.
文摘Currently, the number of myopic people in China has reached as high as 600 million, and it shows a trend of “early onset, high incidence, and a high degree of severity”. The issue of myopia among children and adolescents has attracted widespread attention from all sectors of society. Comprehensive myopia prevention and control efforts have been launched nationwide. Popular science education, vision screening, and improving visual environments are effective measures for preventing myopia. However, among the target audience for comprehensive myopia prevention and control, the preschool children group has been neglected, and the work of myopia prevention and control for this group has been significantly weakened and marginalized. Due to insufficient awareness of prevention and control, the hyperopia reserve in the preschool children group is being continuously depleted, leading to the early onset of myopia. In light of this situation, the focus of myopia prevention and control needs to shift forward, and it is worth exploring and pondering how college students with a background in optometry can develop entertaining and engaging popular science education materials and methods.
文摘Myopia represents a critical public health challenge with far-reaching implications for future development,as global prevalence is projected to reach 49.8%by 2050(1–2).The Chinese government has implemented comprehensive policies and proactive measures(3–6)to accelerate prevention efforts through systematic interventions.Traditional monitoring approaches have focused primarily on vision screening and diopter examination following myopia onset,thereby lacking early warning systems for tracking hyperopic reserve depletion.Commissioned by the National Disease Control and Prevention Bureau,our team has spearheaded a landmark large-scale monitoring project on hyperopic reserves among children and adolescents since 2020,encompassing ten provincial-level administrative divisions(PLADs;including Beijing,Liaoning,Zhejiang,Henan,Chongqing,Shaanxi,Guangdong,Shanxi,Hunan,and Shandong).
基金supported by the Science and Technology Planning Project of Guangdong Province(2023A1111120011)the Natural Science Foundation of Guangdong Province(2024A1515010801).
文摘Objective:To investigate the lifestyle and myopia among primary school students in urban areas of Fujian with the context of myopia prevention and control measures,aiming to provide scientific evidence for identifying high-risk myopia population and formulating effective intervention strategies.Methods:A cross-sectional study was conducted from October to November 2023,enrolling 811 fourth-grade students from three primary schools in three cities across Fujian.Personal information and lifestyle-related pattern were collected using customized questionnaire.Participants underwent comprehensive ophthalmic assessments including distance visual acuity tests and refractive examinations.Logistic regression analysis was used to assess the impact of lifestyle on the onset of myopia.Results:The prevalence of myopia among fourth-grade students in urban primary schools in Fujian was 46.4%.Only 25.8%students engaged in outdoor activities for more than 2 hours daily,while63.3%participated in outdoor activities during class breaks.Multivariate Logistic regression analysis revealed that outdoor activities during class breaks(OR=0.646(95%confidence interval(CI):0.473-0.881),P=0.006)and daily time spent outdoors(2-3 hours,OR=0.682(95%CI:0.466-0.993),P=0.047;more than 3 hours,OR=0.403(95%CI:0.192-0.796),P=0.01)were independent protective factors against myopia.Lifestyle significantly enhanced the predictive performance for myopia(P=0.01).Additionally,parental myopia(one parent with myopia,OR=2.247(95%CI:1.612-3.145),P<0.001;both parents with myopia,OR=4.824(95%CI:3.262-7.204),P<0.001)emerged as a key risk factor for myopia.Conclusions:There is considerable scope for improving the lifestyle of primary school students in urban areas of Fujian.Lifestyle is strongly associated with myopia onset,highlighting the need for schools and families to actively encourage students to engage in more outdoor activities and take breaks outdoors to prevent and control myopia.Students with parents,especially both parents,having myopia should be considered as a key target group for myopia prevention efforts.
基金The Science and Technology Planning Projects of Guangdong Province(Grant No.2018B010109008)National Key R&D Program of China(Grant No.2018YFC0116500).
文摘In recent years,the incidence of myopia has increased at an alarming rate among children and adolescents in China.The exploration of an effective prevention and control method for myopia is in urgent need.With the development of information technology in the past decade,artificial intelligence with the Internet of Things technology(AIoT)is characterized by strong computing power,advanced algorithm,continuous monitoring,and accurate prediction of long-term progression.Therefore,big data and artificial intelligence technology have the potential to be applied to data mining of myopia etiology and prediction of myopia occurrence and development.More recently,there has been a growing recognition that myopia study involving AIoT needs to undergo a rigorous evaluation to demonstrate robust results.
文摘Objective: to analyze the effect of visual training in the prevention and control of juvenile myopia. Methods: 100 cases of juvenile myopia treated in our hospital from December 2017 to December 2018 were divided into reference group and experimental group by lot, with 50 cases in each group. The reference group received medical optometry according to the reference requirements, and the experimental group received visual training on the basis of the reference group. The changes of ocular axis length of the two groups after the intervention and the adjustment lag of the two groups before and after the intervention were compared. Results: the length of ocular axis in the experimental group was lower than that in the reference group, and the comparison between the groups had statistical value (P < 0.05);In the comparison of adjustment lag, there was no difference between the two groups before intervention (P > 0.05);After the intervention, the experimental group was lower than the reference group, and there was significant difference between the groups (P < 0.05). Conclusion: in order to reduce juvenile myopia, visual training can delay the growth of ocular axis length, reduce the amount of adjustment lag and myopia, which is conducive to the healthy growth of adolescents.
文摘AIM:To observe the effect of the plus power ring zone(PPRZ)area and distribution on myopia progression.METHODS:This retrospective study enrolled 137 pre-teens aged 8-12 at Taiyuan Aier Eye Hospital between 2019 and 2021.They were fitted with Ortho-K lenses for the first time due to refractive error,with a one-year follow-up period.To indicate the peripheral plus ring zone overlapping with the pupil zone(PPROPZ)accompanying PPRZ,participants were divided based on the PPROPZ to PPRZ ratio.The experimental group had 103 eyes with a PPROPZ to PPRZ ratio of≥0.2,and the control group had 103 eyes with a ratio of<0.2.Participants had a spherical diopter in the range of-6.00 D to-0.75 D,against-the-rule astigmatism less than 1.00 D,with-the-rule astigmatism less than 1.50 D,and corneal curvatures of 39.00 D to 46.00 D.They had a stable best corrected visual acuity of 0.10 LogMAR(20/25)or better when wearing orthokeratology(Ortho-K)lenses.PPRZ and PPROPZ were measured using ImageJ;corneal topography assessed corneal-related parameters,and an optical biometer measured the axial length of the eyes pre and post-one years of lens wear.RESULTS:Changes in axial length elongation were found to decrease when either the PPRZ(P<0.01)or PPROPZ(P<0.001)was increased significantly.The axial length growth was faster in the control group(0.37±0.2 mm)than in the experimental group(0.21±0.11 mm).Furthermore,we found that a larger horizontal visible iris diameter(HVID)corresponded to slower axial growth of the eye.In contrast,axial length growth showed no correlation with surface regularity index(SRI),surface asymmetry index(SAI),flat keratometry value(K_(f)),steep keratometry value(K_(s)).CONCLUSION:For orthokeratology,wearers with larger PPROPZ to PPRZ ratio usually experiences a reduction in axial length growth.The PPRZ and PPROPZ are negatively correlated with the axial length.Our findings provide a recommendation and methods for studying the myopia control mechanism through Ortho-K lenses.
文摘Objective: to analyze the role of orthokeratology lens (OK lens) in the prevention and control of myopia in adolescents. Methods: a total of 50 adolescent myopic patients who came to our hospital for myopic consultation and treatment from January 2018 to December 2020 were selected, and they were divided into two groups with 25 cases in each group according to their treatment intention and glasses wearing mode. The myopia patients in the frame group were treated with ordinary frame glasses, and the OK lens group was monitored by AL measurement. The visual acuity, intraocular pressure, AL monitoring and HHK were compared between the two groups before and after treatment. Results: there were no significant changes in visual acuity, intraocular pressure, AL monitoring and HHK between the two groups before treatment (P > 0.05), but there were no significant changes in visual acuity, intraocular pressure, AL monitoring and HHK between the two groups after treatment (P > 0.05). However, the visual acuity, intraocular pressure and HHK of OK mirror group were higher than those before treatment, P < 0.05. AL had no significant change, P > 0.05. Conclusion: AL measuring and monitoring OK lens has better effect on prevention and treatment of myopia than conventional glasses, which is worthy of recommendation for adolescent myopia patients who come to our hospital for consultation and treatment of myopia.
文摘INTRODUCTION The application of atropine in the prevention and control of myopia was reported as early as the 1970s.1 In recent years,low-concentration atropine has drawn the attention of clinicians and parents of children because of its excellent efficacy and safety.Currently,although the national drug regulatory authority has not officially sanctioned the application of low-concentration atropine eye drops in clinical myopia prevention and control,some provincial drug regulatory departments have permitted their use in the form of hospital preparations or obtained through a doctor’s prescription on Internet hospitals.
基金Nursing Discipline Research Project of the Chinese Medical Association Journal House for 2022-2023(Project No.:CMAPH-NRG 2022007)。
文摘Objective: To investigate the current status of health literacy regarding children’s vision protection among preschool teachers and to provide a basis for targeted training. Methods: A convenience sampling method was employed to conduct a questionnaire survey among 1,442 preschool teachers in Xiangyang City from April to June 2024. The questionnaire covered five dimensions: knowledge, beliefs, behaviors, skills, and policies. Item response rates were used to identify literacy gaps. Results: The overall vision protection literacy of preschool teachers exhibited characteristics of “strong beliefs but weak knowledge and skills”. The item response rates for each dimension, from highest to lowest, were: beliefs (92.7%), policies (81.9%), behaviors (74.8%), knowledge (67.5%), and skills (58.3%). The core gaps were concentrated in the “knowledge” and “skills” dimensions, with significant deficiencies particularly in the understanding of the concept of “hyperopia reserve” (awareness rate: 27.6%), skills in guiding behaviors for myopia prevention and control (mastery rate: < 50%), and the ability to interpret vision screening results (complete mastery rate: 35.0%). Conclusion: Currently, there are significant structural deficiencies in the health literacy of kindergarten teachers regarding children’s vision protection. In the future, greater emphasis should be placed on practical skills training, particularly in enhancing their practical abilities in areas such as “hyperopia reserve” cognition and interpretation of vision screening results.
基金supported by the National Natural Science Foundation of China(72293585,72404183).
文摘Introduction:Myopia has emerged as a major public health challenge affecting the visual health of children and adolescents in China.While evidence confirms the effectiveness of outdoor activity in preventing myopia,comprehensive economic analyses of its role in mitigating myopia-related diseases remain limited.Methods:This study employed a microsimulation model to evaluate the cost-effectiveness of increasing outdoor activity across different educational stages—primary,middle,and high school—for myopia prevention in China.The model simulated myopia progression among individuals aged 6 to 18 years,with the intervention defined as an additional 40 minutes of daily outdoor activity.Outcomes measured included changes in myopia prevalence,quality-adjusted life years(QALYs),and associated medical costs.Results:All intervention scenarios proved costeffective,except for those targeting only the high school stage.Interventions focused on primary schools and combined primary–middle school stages not only improved health outcomes but also reduced medical costs.While the all-stages intervention yielded the greatest health benefits,its higher implementation costs make it more suitable for regions with greater resources.Conclusion:These findings highlight the critical importance of early intervention in myopia prevention.Policymakers should prioritize outdoor activity programs at the primary school level and develop tailored prevention strategies based on local resource availability.This study provides empirical evidence for developing scientifically sound,cost-effective myopia prevention strategies for children and adolescents,with relevant implications for other developing countries facing a high myopia burden.
基金supported by the Key Research and Development Program of Zhejiang Province(Grant Numbers 2020C03036 and 2021C03102)the National Natural Science Foundation of China(Grant Numbers 31801098 and 81830027)+2 种基金National Key Research and Development Program for Active Health and Aging Response(Grant Number 2020YFC2008200)the Major Scientific and Technological Innovation Projects of Wen Zhou(Grant Number ZY2020013)the Internal Fund Project of Eye Hospital of Wenzhou Medical University(Grant Numbers YJGG20181001 and KYQD20190101).
文摘Background:Myopia is the most common visual impairment in children and adolescents worldwide.This study described an economical and effective population-based screening pipeline and performed the project of a million scale children and adolescents myopia survey(CAMS),which will shed light on the further study of myopia from the level of epidemiology and precision medicine.Methods:We developed a novel population-based screening pattern,an intelligent screening process and internetbased information transmission and analysis system to carry out the survey consisting of school children in Wenzhou,China.The examination items include unaided distance visual acuity,presenting distance visual acuity,and noncycloplegic autorefraction.Myopia and high myopia were defined as spherical equivalent(SE)≤−1.00 diopters(D)and SE≤−6.00 D,respectively.Next,the reports of the vision checking were automatically sent to parents and the related departments.The CAMS project will be done two to four times annually with the support of the government.An online eyesight status information management system(OESIMS)was developed to construct comprehensive and efficient electronic vision health records(EVHRs)for myopia information inquiry,risk pre-warning,and further study.Results:The CAMS completed the first-round of screening within 30 days for 99.41%of Wenzhou students from districts and counties,in June 2019.A total of 1,060,925 participants were eligible for CAMS and 1,054,251(99.37%participation rate)were selected through data quality control,which comprised 1305 schools,and 580,609,251,050 and 170,967 elementary,middle,and high school students.The mean age of participants was 12.21±3.32 years(6-20 years),the female-to-male ratio was 0.82.The prevalence of myopia in elementary,middle,and high school students was 38.16%,77.52%,and 84.00%,respectively,and the high myopia incidence was 0.95%,6.90%,and 12.98%.Conclusions:The CAMS standardized myopia screening model involves automating large-scale information collection,data transmission,data analysis and early warning,thereby supporting myopia prevention and control.The entire survey reduced 90%of staff,cost,and time consumption compared with previous surveys.This will provide new insights for decision support for public health intervention.
