Association of excessive screen time exposure with ocular changes leading to astigmatism in children DOI Creative Commons
Mutahir Shah,

Satheesh Babu Natarajan,

Nafees Ahmad

et al.

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(4), P. e0317961 - e0317961

Published: April 1, 2025

Purpose The purpose of this study was to find the relationship between excessive screen time exposure and development astigmatism in children. Methods A cross-sectional correlational conducted at tertiary care hospital, Islamabad June 2023 May 2024. In total, 431 patients were included after informed written consent. Screen assessed through smartphone usage history or parental reports daily use smart gadget(s). Tear break-up measured using a fluorescein strip, cobalt blue filter on slit-lamp biomicroscope stopwatch. Data analyzed univariate multivariate statistical tests including Spearman’s correlation regression analyses. Results children (mean age: 6.70 ± 1.80 years; 55% male, 45% female). Mean 4.54 1.52 hours/day. positive magnitude observed (r = 0.33, p < 0.001). Regression analysis showed significant among (B 0.177, CI: 0.80-0.25). break- up (TBUT) negative with -0.167, 0.001), reduced TBUT linked higher risk inflammatory conjunctivitis lid thickening -0.431, -0.12 -0.49, results highlighted that conjunctivitis/lid thickness have three times greater developing high (OR 3.31, p-value 0.001, CI 1.91 5.73) while moderate such cases two (2.12, 0.004, 1.26-3.56). However, effect when combining has little is not (p-value 0.053). Thus, an independent factor causing (p Wilcoxon Signed Ranks Test demonstrated improvement visual acuity correction Conclusion Excessive significantly associated astigmatism, tear film instability, ocular conditions, thickening. These findings suggest need for preventive strategies, as reducing encouraging regular eye examinations, protect children’s health.

Language: Английский

The Spatial Frequency Content of Urban and Indoor Environments as a Potential Risk Factor for Myopia Development DOI Creative Commons

Daniel Ian Flitcroft,

Elise Harb,

Christine F. Wildsoet

et al.

Investigative Ophthalmology & Visual Science, Journal Year: 2020, Volume and Issue: 61(11), P. 42 - 42

Published: Sept. 28, 2020

Purpose: To examine the hypothesis that spatial frequency spectra of urban and indoor environments differ from natural environment in ways may promote development myopia. Methods: A total 814 images were analyzed three datasets; University California Berkeley (UCB), Texas (UT), Botswana (UPenn). Images processed Matlab (Mathworks Inc) to map camera color characteristics human cone sensitivities. From photopic luminance generated, two-dimensional (SF) calculated converted one-dimensional by rotational averaging. The filtering profile a 0.4 Bangerter foil, which has been shown induce myopia experimentally, was also determined. Results: SF slope for scenes followed recognized 1/fα relationship with mean slopes −1.08, −0.90, −1.04 UCB, UT UPenn image sets, respectively. Indoor had significantly steeper (−1.48, UCB; −1.52, UT; P < 0.0001). Urban showed an intermediate (−1.29, −1.22, UT) different derived (P change content between outdoor indoors comparable induced reduced scene −0.88 −1.47. Conclusions: Compared images, man-made have similar those known form-deprivation animal models. properties be one missing drivers epidemic.

Language: Английский

Citations

81
Urban greenspace and visual acuity in schoolchildren: a large prospective cohort study in China DOI Creative Commons
Wen-Wen Bao, Yu Zhao, Payam Dadvand

et al.

Environment International, Journal Year: 2024, Volume and Issue: 184, P. 108423 - 108423

Published: Jan. 5, 2024

Greenspace is known to have a positive impact on human health and well-being, but its potential effects visual acuity not been extensively studied.

Language: Английский

Citations

13
Refractive error, axial length, environmental and hereditary factors associated with myopia in Swedish children DOI Creative Commons
Pelsin Demir, Karthikeyan Baskaran, Baskar Theagarayan

et al.

Clinical and Experimental Optometry, Journal Year: 2021, Volume and Issue: 104(5), P. 595 - 601

Published: March 2, 2021

Clinical relevance: Investigation of refractive errors amongst Swedish schoolchildren will help identify risk factors associated with myopia development.Background: Genetic and hereditary aspects have been linked the development myopia. Nevertheless, in case 'school myopia' some authors suggest that environmental may affect gene expression, causing school to soar. Additional understanding about which play a relevant role can be gained by studying countries like Sweden, where prevalence is expected low.Methods: aged 8-16 years were invited participate. Participants underwent an eye examination, including cycloplegic refraction axial length (AL) measurements. Predictors such as time spent near work, outdoor activities parental obtained using questionnaire. Myopia was defined spherical equivalent (SER) ≤ −0.50D hyperopia SER ≥ +0.75D.Results: A total 128 children (70 females 58 males) participated this study mean age 12.0 (SD = 2.4). Based on right eye, distribution was: 48.0% (CI95 38.8-56.7), emmetropia 42.0% 33.5-51.2) 10.0%. 4.4-14.9). The AL 23.1 mm 0.86), there correlation between AL, r −0.65 (p < 0.001). two myopic parents had higher increased than those one or no parents. outside school, 5.3 hours-per-day 3.1), reported 2.6 2.2) for all participants. work different error categories.Conclusion: low. Hereditary are categories. Further studies sample warranted investigate how interact over time.

Language: Английский

Citations

50
Effects of Greenness on Myopia Risk and School-Level Myopia Prevalence Among High School–Aged Adolescents: Cross-sectional Study DOI Creative Commons
Chang Zhang, Cheng Wang, Xin Guo

et al.

JMIR Public Health and Surveillance, Journal Year: 2023, Volume and Issue: 9, P. e42694 - e42694

Published: Jan. 9, 2023

Background Myopia is a serious public health issue. High school–aged adolescents in Beijing have an alarming prevalence of myopia. Therefore, determining myopia protective factors essential. Green space has certain association with that can protect against Objective This study aims to examine the effects green around schools on individual risk high and school-level prevalence. Methods was measured using normalized difference vegetation index (NDVI). A total 13,380 samples 51 were selected from 2021 Municipal Health Commission survey. Adolescent defined as spherical equivalent ≤–1.00 diopters worse eye. Generalized linear mixed models binomial error structure used analyze NDVI personal adjust them by other factors, such demographics, exposure time, outdoor exercise. The adjusted demographics relative position trees analyzed through quasibinomial regression. Results overall 80.61% (10,785/13,380, 95% CI 79.93%-81.27%). Although 0.1 increase 500 1000 m buffer NDVIs demographic significantly dropped 16% (odds ratio [OR] 0.84, 0.73-0.97) 12% (OR 0.88, 0.79-0.99), respectively. However, only (by trees) reduced 15% 0.85, 0.74-0.98). Subgroup analysis showed are significant schoolgirls 0.82, 0.72-0.93), juniors 0.72-0.94), Han nationality 0.72-0.97), 1-year 0.71-0.99) 3-year 0.78, 0.65-0.94). Conclusions greenness associated lower among schools. With regard prevention control activities, within suggested independent factor for adolescent

Language: Английский

Citations

19
Different efficacy in myopia control: Comparison between orthokeratology and defocus-incorporated multiple segment lenses DOI
Weicong Lu,

Rongyuan Ji,

Dongdong Jiang

et al.

Contact Lens and Anterior Eye, Journal Year: 2024, Volume and Issue: 47(2), P. 102122 - 102122

Published: Jan. 13, 2024

Language: Английский

Citations

8
Research Progress of Photo-crosslink Hydrogels in Ophthalmology: A Comprehensive Review Focus on the Applications DOI Creative Commons
Qinghe Zhang,

Ke Yan,

Zheng Xiao-qin

et al.

Materials Today Bio, Journal Year: 2024, Volume and Issue: 26, P. 101082 - 101082

Published: May 6, 2024

Hydrogel presents a three-dimensional polymer network with high water content. Over the past decade, hydrogel has developed from static material to intelligent controllable response. Various stimuli are involved in formation of network, among which photo-stimulation attracted wide attention due advantages conditions, good application prospect treatment ophthalmic diseases. This paper reviews photo-crosslink hydrogels ophthalmology, focusing on types and their applications including drug delivery, tissue engineering 3D printing. In addition, limitations future prospects also provided.

Language: Английский

Citations

8
Polymeric Materials for Eye Surface and Intraocular Applications DOI
Metin Karayilan,

Liane Clamen,

Matthew L. Becker

et al.

Biomacromolecules, Journal Year: 2021, Volume and Issue: 22(2), P. 223 - 261

Published: Jan. 6, 2021

Ocular applications of polymeric materials have been widely investigated for medical diagnostics, treatment, and vision improvement. The human eye is a vital organ that connects us to the outside world so when injured, infected, or impaired, it needs immediate treatment maintain clear quality life. Moreover, several essential parts lose their functions upon aging, causing diminished vision. Modern polymer science offer various alternatives, such as corneal scleral implants, artificial ocular lenses, vitreous substitutes, replace damaged eye. In addition use polymers contact lenses can provide not only correction, but they also be used wearable electronics. this Review, we highlight evolution specific intraocular current state-of-the-art systems with unique properties lens, corneal, scleral, body applications. We organize Review paper by following path light travels through Starting from (contact lenses), move onto eye's surface (cornea sclera) conclude (intraocular lens body) mostly synthetic biopolymers. Initially, briefly describe anatomy physiology reminder functions. rest provides an overview recent advancements in next-generation sensors, solid injectable body. Current limitations future improvements are discussed.

Language: Английский

Citations

37
Correlation Between Increase of Axial Length and Height Growth in Chinese School-Age Children DOI Creative Commons

Lixia Tao,

Chunxiao Wang,

Yiyi Peng

et al.

Frontiers in Public Health, Journal Year: 2022, Volume and Issue: 9

Published: Jan. 20, 2022

Purpose To identify the relationship between increase in axial length (AL) and height school-age children explore influence of refractive status on such a relationship. Methods In this 5-year cohort study, 414 Chinese (237 boys) aged 6–9 years (mean 7.12) underwent measurements annually. AL was measured using Lenstar; with standing, without shoes; refraction subjective cycloplegia. Participants were divided according to status: persistent emmetropia, myopia, newly developed myopia. The measurement time points emmetropia myopia groups marked as T 1 , 2 3 4 5 . onset group t 0 ; preceding −1 −2 so on, succeeding on. association analyzed simple correlation analysis. Results mean changes AL, height, 1.39 mm, 23.60 cm, −1.69 D, respectively, over all children. positively correlated for ~T ( r = 0.262, P &lt; 0.001; 0.108, 0.034; 0.165, 0.174, 0.001, respectively). significantly 0.289, 0.009) after ~ ). Conclusion correlated, especially onset. Thus, when grow quickly, elongation should be monitored.

Language: Английский

Citations

24
Dietary Patterns and Associations with Myopia in Chinese Children DOI Open Access
Chunjie Yin, Qian Gan, Peipei Xu

et al.

Nutrients, Journal Year: 2023, Volume and Issue: 15(8), P. 1946 - 1946

Published: April 18, 2023

Dietary shifts in populations undergoing rapid economic transitions have been proposed as partly contributing toward the intergenerational rise myopia prevalence; however, empirical evidence of effect dietary factors on is limited. This study investigated association between and incident Chinese children aged 10-11 years. We evaluated habits using a 72-item food frequency questionnaire (FFQ) among 7423 children. Myopic status was assessed "General Personal Information Questionnaire". Principal component analysis used to extract patterns investigate their with myopia. After adjusting for potential confounders, participants highest adherence pattern A (95% confidence interval (CI): 0.66-0.92, p trend = 0.007) C CI: 0.58-0.80, < 0.001) had lower risk than least adherence. Both these are characterized by high consumption meats, aquatic product, dairy its products, eggs, legumes, vegetables, fruits, grains, potatoes. Our findings suggest that other environmental factors, such those related environment, may contribute development These can serve reference diet-related primary prevention

Language: Английский

Citations

16
Associations of refractive errors and retinal changes measured by optical coherence tomography: A systematic review and meta-analysis DOI
Mohammad Amin Salehi, Ali Nowroozi, Mahdi Gouravani

et al.

Survey of Ophthalmology, Journal Year: 2021, Volume and Issue: 67(2), P. 591 - 607

Published: July 31, 2021

Language: Английский

Citations

29