Spectacle Lenses With Aspherical Lenslets for Myopia Control vs Single-Vision Spectacle Lenses

JAMA Ophthalmology, Journal Year: 2022, Volume and Issue: 140(5), P. 472 - 472

Published: March 31, 2022

Reducing myopia progression can reduce the risk of associated ocular pathologies.To evaluate whether spectacle lenses with higher lenslet asphericity have a control efficacy throughout 2 years.This double-masked randomized clinical trial was conducted between July 2018 and October 2020 at Eye Hospital Wenzhou Medical University in Wenzhou, China. Children aged 8 to 13 years cycloplegic spherical equivalent refraction (SER) -0.75 D -4.75 astigmatism less than -1.50 were recruited. A data safety monitoring committee reviewed findings from planned interim analysis 2019.Participants randomly assigned 1:1:1 ratio receive highly aspherical lenslets (HAL), slightly (SAL), or single-vision (SVL).Two-year changes SER axial length their differences groups.Of 157 participants who completed each visit (mean [SD] age, 10.4 [1.2] years), 54 analyzed HAL group, 53 SAL 50 SVL group. Mean (SE) 2-year group 1.46 (0.09) D. Compared SVL, mean change for (by 0.80 [0.11] D) 0.42 D; P ≤ .001). The increase 0.69 (0.04) mm SVL. slowed by 0.35 (0.05) 0.18 (P children wore least 12 hours every day, 0.99 (0.12) D, 0.41 mm.In this study, reduced rate elongation years, HAL. Longer wearing resulted better HAL.Chinese Clinical Trial Registry Identifier: ChiCTR1800017683.

Language: Английский

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Prevalence of Myopia in Children Before, During, and After COVID-19 Restrictions in Hong Kong

JAMA Network Open, Journal Year: 2023, Volume and Issue: 6(3), P. e234080 - e234080

Published: March 22, 2023

Importance Childhood myopia increased during the COVID-19 pandemic. Limited evidence exists about whether development was reversed or worsened after lockdown. Objective To determine prevalence of and its associated factors before, during, restrictions. Design, Setting, Participants This population-based, repeated cross-sectional study evaluated children aged 6 to 8 years from Hong Kong Children Eye Study between 2015 2021 in 3 cohorts: before (2015-2019), restrictions (2020), were lifted (2021). Exposures All received ocular examinations, including cycloplegic autorefraction axial length. Data children’s lifestyle, time spent outdoors, near-work time, screen collected a standardized questionnaire. Main Outcomes Measures The main outcomes myopia, mean spherical equivalent refraction, length, changes over 7 years. analyzed using descriptive statistics, logistic regression, generalized estimating equations. Results Of 20 527 (mean [SD] age, 7.33 [0.89] years; 52.8% boys 47.2% girls), stable 2019 (23.5%-24.9%; P = .90) but 28.8% ( < .001) 2020 36.2% 2021. (SD) outdoors much lower (0.85 [0.53] h/d; (1.26 [0.48] compared with pre–COVID-19 levels (1.40 [0.47]-1.46 [0.65] h/d). trend for total time. High pandemic (odds ratio [OR], 1.40; 95% CI, 1.28-1.54; .001), younger age (OR, 1.84; 1.76-1.93; male sex 1.11; 1.03-1.21; .007), family income 1.05; 1.00-1.09; .04), parental 1.61; 1.52-1.70; .001). During pandemic, times lower-income families 5.16 (2.05) h/d 3.44 (1.97) h/d, more than higher-income (4.83 [1.85] 2.90 [1.61] respectively). Conclusions Relevance findings this revealed that Kong, among higher lifestyle did not return levels. Younger those low-income at risk suggesting collective efforts control should be advocated these groups.

Language: Английский

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Light and myopia: from epidemiological studies to neurobiological mechanisms

Therapeutic Advances in Ophthalmology, Journal Year: 2021, Volume and Issue: 13

Published: Jan. 1, 2021

Myopia is far beyond its inconvenience and represents a true, highly prevalent, sight-threatening ocular condition, especially in Asia. Without adequate interventions, the current epidemic of myopia projected to affect 50% world population by 2050, becoming leading cause irreversible blindness. Although blurred vision, predominant symptom myopia, can be improved contact lenses, glasses or refractive surgery, corrected particularly high still carries risk secondary blinding complications such as glaucoma, myopic maculopathy retinal detachment, prompting need for prevention. Epidemiological studies have reported an association between outdoor time prevention children. The protective effect spent outdoors could due unique characteristics (intensity, spectral distribution, temporal pattern, etc.) sunlight that are lacking artificial lighting. Concomitantly, animal models highlighted efficacy light components delaying even stopping development endeavoured elucidate possible mechanisms involved this process. In narrative review, we (1) summarize knowledge concerning modulation growth error based on human models, (2) potential neurobiological effects emmetropization (3) highlight pathway translational noninvasive light-therapy strategies

Language: Английский

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Impact of online classes and home confinement on myopia progression in children during COVID-19 pandemic: Digital eye strain among kids (DESK) study 4

Indian Journal of Ophthalmology, Journal Year: 2021, Volume and Issue: 70(1), P. 241 - 245

Published: Dec. 23, 2021

Purpose: This study was performed to compare the rate of progression myopia before and during COVID-19 pandemic assess risk factors hastened progression. Methods: All children with spherical equivalence ≤ −0.5 D at least two prior documented refractions 6 months 1 year were included. The annual calculated. Annual categorized as no (0), slow (<1 D), fast (≥1 D). Results: A total 133 (266 eyes) aged 6–18 years included in study. Mean found be statistically significant compared pre-COVID-19 (0.90 vs 0.25 D, P < 0.00001). 45.9% showed an ≥1 10.5% (p In multivariate analysis, history rapid era ( = 0.002) sun exposure <1 h/day 0.00001) independent for Conclusion: Parents should consider current provided socially distant outdoor activities increase their diminish

Language: Английский

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Advances in myopia control strategies for children

British Journal of Ophthalmology, Journal Year: 2024, Volume and Issue: unknown, P. bjo - 323887

Published: May 22, 2024

Myopia has long been a global threat to public health. Timely interventions are likely reduce the risk of vision-threatening complications. There both established and rapidly evolving therapeutic approaches slow myopia progression and/or delay its onset. The effective methods for slowing include atropine eye-drops, defocus incorporated multiple segments (DIMS) spectacle lenses, lenses with highly aspherical lenslets target (HALT), diffusion optics technology (DOT) red light therapy (RLT), multifocal soft contact orthokeratology. Among these, 0.05% atropine, HALT RLT +3.00 peripheral addition yield over 60% reduction in progression, whereas DIMS, DOT MiSight demonstrate at least 50% control efficacy. demonstrates more optimal balance efficacy safety than 0.01%. 0.01% not consistent requires further validation across diverse ethnicities. Combining orthokeratology or DIMS spectacles yields better outcomes using these as monotherapies. Increased outdoor time is an health strategy prevention while recent studies suggest that low-concentration have promising potential clinical high-risk groups. being invasive, safe long-term use. However, when considering other approaches, it essential ensure proper instruction regular follow-ups maintain monitor any Ultimately, significant advances made strategies, many which shown meaningful outcomes. use adequate monitoring extended durations imperative foster confidence can only come from extensive experience.

Language: Английский

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Systematic Review and Meta-Analysis on the Impact of COVID-19 Pandemic–Related Lifestyle on Myopia

Asia-Pacific Journal of Ophthalmology, Journal Year: 2022, Volume and Issue: 11(5), P. 470 - 480

Published: Sept. 1, 2022

Purpose: To conduct a systematic review and meta-analysis to assess the effects of coronavirus disease 2019 (COVID-19) pandemic–related lifestyle on myopia outcomes in children young adults. Methods: A search was conducted PubMed, Embase, Cochrane Central Register Controlled Trials databases (with manual searching reference lists reviews). Studies included assessed changes myopia-related (cycloplegic refraction) during COVID pre-COVID. Of 367 articles identified, 7 (6 prospective cohorts; 1 repeated cross-sectional study) comprising 6327 participants aged 6 17 were included. Quality appraisals performed with Joanna Briggs Institute Critical Appraisal Checklists. Pooled differences annualized myopic shifts or mean spherical equivalent (SE) pre-COVID obtained from random-effects models. Results: In all studies, SE moved toward direction (vs pre-COVID), where 5 reported significantly faster [difference means changes: −1.20 −0.35 diopters per year, [D/y]; pooled estimate: −0.73 D/y; 95% confidence interval (CI): −0.96, −0.50; P<0.001], 2 more (difference means: −0.72 −0.44 −0.54 CI: −0.80, −0.28; P<0.001). Three studies higher (SE ≤−0.50 D) incidence (2.0- 2.6-fold increase) versus assessing changes, 4 lower time outdoors (pre-COVID vs COVID: 1.1–1.8 0.4–1.0 hours day, [h/d]), 3 screen 0.7–2.8 2.4–6.9 h/d). Conclusions: This suggests pre-COVID) 17. COVID-19 restrictions may have worsened shifts, lifting lessen this effect. Evaluations long-term pandemic onset progression large are warranted confirm these findings.

Language: Английский

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The Current and Future Landscape of the Childhood Myopia Epidemic in China—A Review

Ophthalmology and Therapy, Journal Year: 2024, Volume and Issue: 13(4), P. 883 - 894

Published: Feb. 1, 2024

Over the last two decades, prevalence of myopia has gradually increased in China. Numerous epidemiological studies suggest that education and inadequate time spent outdoors are major causes current epidemic. China is one few countries begun to address epidemic with a national-level strategy, implementing nationwide reform, cost-reduction measurements, dissemination information on prevention control. These "natural experiments" will provide insights into areas may face similar or potential problems.

Language: Английский

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Online Learning-Related Visual Function Impairment During and After the COVID-19 Pandemic

Frontiers in Public Health, Journal Year: 2021, Volume and Issue: 9

Published: Nov. 29, 2021

This study aimed to review the consequences of increased online learning, which was precipitated by coronavirus disease 2019 (COVID-19), on visual function, as well methods for preventing associated impairment. The recent finding implies that a higher incidence myopia may be observed during pandemic than before. prevalence 59.35% in COVID-19, normal period. COVID-19-related influence developing among students should addressed and under control. Online learning COVID-19 is likely increase global burden function highlighted useful measures prevent learning-related impairments, including following: (1) desktop illumination no &gt;300 lx, time primary, middle-school more 20–30 min per session ; (2) daily video preschool children not exceeding 1 h, school-age adolescents 2 h; (3) after every 30–40 moving eyes away from screen or closed 10 min; (4) engaging outdoor activities ≥ h day; (5) suitable environment settings correct postures reading writing; (6) sufficient sleep proper nutrition. Preventing impairment this unprecedented will facilitate future ophthalmic practice.

Language: Английский

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Complex Interplay Between COVID-19 Lockdown and Myopic Progression

Frontiers in Medicine, Journal Year: 2022, Volume and Issue: 9

Published: March 21, 2022

Purpose To compare the myopic progression before and during strict home confinement when coronavirus disease 2019 (COVID-19) outbreak explore potential influencing factors. Methods A cross-sectional study. One hundred fifteen children (115 right eyes) who replace their frame-glasses from December to January 2020 with complete refractive records in our hospital since myopia were involved At beginning of after a 3-month COVID-19 pandemic, they invited examine axial length errors. And visual functions, convergence insufficiency symptom survey (CISS) scale questionnaires also performed. Besides, errors got outpatient case files. The effect on was assessed by comparing monthly elongation confinement. Spearman correlation analysis performed between factors progression. Results Axial length's 35% higher than normal periods (0.046 vs. 0.033 mm/month, P = 0.003). proportion severe asthenopia doubled ( 0.020). For progression, heredity, close indoor work time electronic products risk protective age, rest continuous eye usage, sleep distance computer screen. Conclusions During COVID-19, decline outdoor activities increase exposure digital screens accelerated 1/3.

Language: Английский

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Effects of remote learning during the COVID-19 lockdown on children’s visual health: a systematic review

BMJ Open, Journal Year: 2022, Volume and Issue: 12(8), P. e062388 - e062388

Published: Aug. 1, 2022

Objectives Increased exposure to digital devices as part of online classes increases susceptibility visual impairments, particularly among school students taught using e-learning strategies. This study aimed identify the impact remote learning during COVID-19 lockdown on children’s health. Design Systematic review Preferred Reporting Items for Reviews and Meta-Analyses guidelines. Data sources Scopus, PubMed ScienceDirect databases from year 2020 onwards. Eligibility criteria We included cross-sectional, case–control, cohort studies, case series reports, published in English, Spanish or French, that approached effects health neurotypical children. extraction synthesis a total 21 articles with previous quality assessments Joanna Briggs checklist. Risk bias assessment was applied National Institutes Health tool before-and-after studies no control group; developed by Hoy et al assess cross-sectional studies; Murad evaluate methodological reports series; Newcastle-Ottawa Scale studies. Results All but one reported deleterious Overall, most frequently identified ocular were refractive errors, accommodation disturbances symptoms such dry eye asthenopia. Conclusions dependence has either induced exacerbated disturbances, rapid progression myopia, fatigue symptoms, vergence children who engaged lockdown. PROSPERO registration number CRD42022307107.

Language: Английский

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