Article
Medicine, General & Internal
Hanyu Zhang, Carly S. Y. Lam, Wing-Chun Tang, Myra Leung, Hua Qi, Paul H. Lee, Chi-Ho To
Summary: The aim of this study is to investigate the influence of baseline relative peripheral refraction (RPR) on myopia control effects in Chinese myopic children wearing Defocus Incorporated Multiple Segments (DIMS) lenses. The results showed that baseline myopic RPR was associated with more myopic progression and greater axial elongation in the DIMS group, but not in the single vision (SV) group. Children with baseline myopic RPR in the DIMS group had statistically significant more myopia progression and axial elongation compared to those with baseline hyperopic RPR.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Ophthalmology
Antonio Queiros, Alejandro Cervino, Jose Manuel Gonzalez-Meijome
Summary: This study measured the refraction patterns of myopic eyes with spectacle lenses correction and lens-free emmetropes at different target distances. It was found that accommodation to very near targets (up to 0.20 m) makes the off-axis refraction of myopes wearing their spectacle correction similar to that of lens-free emmetropes, with a significant reduction in off-axis astigmatism observed.
Article
Ophthalmology
Yee Ling Wong, Xue Li, Yingying Huang, Yimin Yuan, Yingying Ye, Ee Woon Lim, Adeline Yang, Daniel Spiegel, Bjorn Drobe, Jinhua Bao, Hao Chen
Summary: This study compared the eye growth patterns of myopic children wearing highly aspherical lenslets, slightly aspherical lenslets, and single-vision lenses. The findings suggest that the eye growth of children wearing highly aspherical lenslets is similar or slower compared to non-myopic children.
OPHTHALMIC AND PHYSIOLOGICAL OPTICS
(2023)
Article
Ophthalmology
Xiaotong Han, Ruilin Xiong, Qianyun Chen, Decai Wang, Shida Chen, Xiang Chen, Jason Ha, Yuting Li, Yabin Qu, Rong Lin, Mingguang He, Ian G. Morgan, Yangfa Zeng, Yizhi Liu
Summary: This study assessed the longitudinal changes in the crystalline lens in persistent non-myopic and myopic children. The results showed a three-stage pattern of change in lens thickness in children ages 3 to 15 years, with a rapid decrease from 3 to 7 years, a slower decrease from 7 to 11 years, followed by an increase thereafter. Lens power consistently decreased in all cohorts during the follow-up period.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2022)
Article
Public, Environmental & Occupational Health
Dariusch Philipp, Mandy Vogel, Manuela Brandt, Franziska G. Rauscher, Andreas Hiemisch, Siegfried Wahl, Wieland Kiess, Tanja Poulain
Summary: This study examined environmental and social risk factors for myopia in children and adolescents in Germany. The findings showed that less frequent outdoor activity and longer near work sessions were significantly associated with myopia. Additionally, children with a lower socioeconomic status were more likely to engage in longer periods of outdoor and near work activities.
Article
Multidisciplinary Sciences
Tailiang Lu, Jike Song, Qiuxin Wu, Wenjun Jiang, Qingmei Tian, Xiuyan Zhang, Jing Xu, Jianfeng Wu, Yuanyuan Hu, Wei Sun, Hongsheng Bi
Summary: In Chinese children, girls have thicker lenses and higher refractive lens power compared to boys, with shorter axial lengths and smaller corneal curvature radii. Refractive lens power is positively associated with refractive error and lens thickness, and negatively associated with axial length. Changes in refractive lens power, axial length, and lens thickness are important factors in emmetropization and myopization.
SCIENTIFIC REPORTS
(2021)
Article
Ophthalmology
Olavi Parssinen, Markku Kauppinen
Summary: The study revealed that the prevalence of myopia was 3%, 15%, and 27% among 7-, 11-, and 15-year-olds, respectively. Risk factors for myopia included increased time spent on near work and decreased time spent outdoors. Outdoor activities were found to have a protective effect against myopia, especially for younger children.
ACTA OPHTHALMOLOGICA
(2022)
Article
Ophthalmology
Tong Sun, Yiyun Liu, Yufei Gao, Chuhao Tang, Qianqian Lan, Tingting Yang, Xiaorui Zhao, Hong Qi
Summary: This study evaluated the efficacy, accuracy, predictability, safety, and visual quality of a diffractive trifocal intraocular lens (IOL) and a refractive rotationally asymmetric bifocal IOL in eyes with axial myopia. The study found that both IOLs provided good results in terms of corrected distance visual acuity and visual quality, but the diffractive trifocal IOL performed better in terms of prediction error of spherical equivalent.
Article
Ophthalmology
Qian Fu, Yue Zhang, Linji Chen, Mengmeng Dong, Wenyu Tang, Si Chen, Jia Qu, Xiangtian Zhou, Zhina Zhi
Summary: This study establishes a model for near work myopia induced by short viewing distance in guinea pigs and evaluates the effect of viewing distance on myopia development. The findings suggest that short viewing distance could be a risk factor for myopia and provide a useful model for studying the underlying mechanisms.
EXPERIMENTAL EYE RESEARCH
(2022)
Article
Ophthalmology
Sargam Chhabra, Manisha Rathi, Sumit Sachdeva, Inder Mohan Rustagi, Dixit Soni, Sweety Dhania
Summary: This study found a positive association between myopia and increased hours of reading, using mobile phones, and playing video games. Additionally, reading in dim light was also correlated with myopia.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Mohamed Elsherif, Fahad Alam, Ahmed E. Salih, Bader AlQattan, Ali K. Yetisen, Haider Butt
Summary: A minimally-invasive glucose detection system based on bifocal contact lenses was developed for continuous quantitative glucose measurements. The system allows for monitoring tear glucose concentration within the physiological range of healthy individuals and diabetics. By controlling the refractive index and groove depth of the Fresnel lens, the system can detect changes in glucose concentration in tears.
Article
Ophthalmology
Hema Radhakrishnan, Carly Siu Yin Lam, W. Neil Charman
Summary: The purpose of this study was to understand and compare the optics of two multiple segment (MS) spectacle lenses (Hoya MiyoSmart and Essilor Stellest) designed to inhibit myopia progression in children. The lenses were evaluated using three techniques and were found to generally meet the design specifications provided by their manufacturers. Wearing either of these lenses will produce similar effects on retinal imagery.
OPHTHALMIC AND PHYSIOLOGICAL OPTICS
(2023)
Article
Ophthalmology
Xuewei Li, Jie Hu, Zisu Peng, Sitong Chen, Liyuan Sun, Kai Wang, Yan Li, Mingwei Zhao
Summary: The purpose of this study was to investigate choroidal and ocular biological variables that influence axial length elongation in myopic children wearing defocused incorporated multiple segments spectacle lenses. The results showed that the area of choriocapillaris flow voids and age were significantly associated with axial length elongation. Further analysis indicated that larger choriocapillaris flow voids area, age, and average K reading were associated with axial length elongation. These findings help predict axial elongation in myopic eyes.
Article
Ophthalmology
Raimundo Jimenez, Beatriz Redondo, Tomas Galan, Pedro Machado, Ruben Molina, Jesus Vera
Summary: This study investigated the short-term effects of wearing dual-focus soft contact lenses on the steady-state accommodative response and NITM for myopia control. The results showed that wearing dual-focus lenses reduces the accommodative response during near tasks and results in a small initial myopic shift after 5 minutes of near viewing.
CLINICAL AND EXPERIMENTAL OPTOMETRY
(2023)
Article
Medicine, General & Internal
Zhen Yi, Chang Hong, Huang Haikuo, Wang Xinxin
Summary: This study evaluated the accuracy of using the vergence formula to screen myopia in children and adolescents. The results showed that the vergence formula can accurately evaluate myopia without cycloplegic refraction, with relatively high sensitivity and specificity.
FRONTIERS IN MEDICINE
(2023)
Article
Public, Environmental & Occupational Health
Lihua Huang, Katrina L. Schmid, Xiao-Na Yin, Jingyu Zhang, Jianbo Wu, Guiyou Yang, Zeng-Liang Ruan, Xiao-Qin Jiang, Chuan-An Wu, Wei-Qing Chen
Summary: Evidence on the impact of screen use and outdoor activity during early childhood (aged 1-3 years) on later preschool myopia is limited. Our study found that exposure to fixed and mobile screen devices, as well as limited outdoor activity during early childhood, were associated with preschool myopia. For children with myopic parents, the interactions between outdoor activity and screen use were significant predictors of preschool myopia.
FRONTIERS IN PUBLIC HEALTH
(2021)
Article
Environmental Sciences
Lihua Huang, Katrina L. Schmid, Jingyu Zhang, Gui-You Yang, Jianbo Wu, Xiao-Na Yin, Guanhao He, Zengliang Ruan, Xiao-Qin Jiang, Chuan-An Wu, Wei-Qing Chen
Summary: The study found that higher residential greenness is associated with a reduced risk of preschool myopia and astigmatism. Increased screen time during early childhood, on the other hand, is associated with an increased risk of myopia and astigmatism. The beneficial effects of residential greenness on preschool myopia were fully mediated by a reduction in screen time, while for astigmatism, the mediating effect was only partial.
ENVIRONMENTAL RESEARCH
(2021)
Letter
Ophthalmology
Sven Jonuscheit, Andrew K. C. Lam, Katrina L. Schmid, John G. Flanagan, Raul Martin, David Troilo
OPHTHALMIC AND PHYSIOLOGICAL OPTICS
(2021)
Article
Ophthalmology
Nanyu Zhou, Katie Edwards, Luisa H. Colorado, Katrina L. Schmid
Summary: The purpose of this study was to determine the clinical ocular marker most related to meibomian area loss and its associations with confocal microscopy imaging. The lid margin score was found to be most related to meibomian area loss, making it the best predictor of undiagnosed meibomian area loss.
Article
Ophthalmology
David A. Atchison, Thien Nguyen, Katrina L. Schmid, Archayeeta Rakshit, Alex S. Baldwin, Robert F. Hess
Summary: The purpose of this study was to simulate lens-induced and screen-induced aniseikonia and evaluate their effects on stereopsis. The results showed that the screen-based method was not always successful in simulating the effects of lens-induced aniseikonia on stereopsis. However, the computer-based method was reasonably successful in neutralizing refractive aniseikonia, especially for overall and x180 meridional aniseikonia.
OPHTHALMIC AND PHYSIOLOGICAL OPTICS
(2022)
Article
Multidisciplinary Sciences
Kai Yip Choi, Ho Yin Wong, Hoi Nga Cheung, Jung Kai Tseng, Ching Chung Chen, Chieh Lin Wu, Helen Eng, George C. Woo, Allen Ming Yan Cheong
Summary: This study found a high prevalence of visual impairment among students with special educational needs, and students with better vision performed better in visual processing and balance tasks.
Article
Ophthalmology
Katrina L. Schmid, Kate L. Gifford, David A. Atchison
Summary: This study evaluated the effects of multifocal soft contact lenses on visual quality, accommodation, and vergence in young adult myopes. The results showed that the two aspheric designs had a greater impact on visual acuity, contrast sensitivity, and accommodation response compared to the concentric design.
CONTACT LENS & ANTERIOR EYE
(2023)
Article
Ophthalmology
Pradipta Bhattacharya, Katie Edwards, Katrina L. Schmid
Summary: This study aimed to develop automated cell identification and segmentation methods for morphometry of corneal epithelial cells using ImageJ software. Manual thresholding technique was reliable for identifying and segmenting intermediate cells, but less reliable for basal cells.
CONTACT LENS & ANTERIOR EYE
(2022)
Article
Ophthalmology
Dinesh Kaphle, Saulius R. Varnas, Katrina L. Schmid, Marwan Suheimat, Alexander Leube, David A. Atchison
Summary: This study aimed to compare the accommodative errors between emmetropes and myopes and investigate the effect of using different instruments and metrics. It was found that emmetropes had smaller lags of accommodation compared to myopes. There were significant differences between methods and instruments.
OPHTHALMIC AND PHYSIOLOGICAL OPTICS
(2022)
Review
Environmental Sciences
Sukanya Jaiswal, Isabelle Jalbert, Katrina Schmid, Natasha Tein, Sarah Wang, Blanka Golebiowski
Summary: This study describes the detrimental effects of wildfire smoke and air pollution on the ocular surface and proposes a mechanism for the pathophysiology of ocular surface damage. Current strategies to reduce human exposure to air pollutants and specific possible approaches to protect the ocular surface are discussed. Further research is suggested to understand the short and long-term implications of acute and chronic air pollution exposure on the ocular surface.
ENVIRONMENTAL POLLUTION
(2022)
Article
Ophthalmology
Dinesh Kaphle, Katrina L. Schmid, Marwan Suheimat, Scott A. Read, David A. Atchison
Summary: The purpose of this study was to investigate the relationship between peripheral choroid thickness and eye length changes during accommodation. The results showed that eye length increased with accommodation, while the choroid thinned. The thinning of the choroid accounted for approximately 60% of the eye length increase.
OPHTHALMIC AND PHYSIOLOGICAL OPTICS
(2023)
Article
Ophthalmology
Saulius R. Varnas, Dinesh Kaphle, Katrina L. Schmid, Marwan Suheimat, David A. Atchison
Summary: The study aimed to investigate the impact of multifocal spectacle lenses on accommodative errors and whether this impact changes over time. The results showed that progressive addition lenses (PALs) can reduce accommodative lag, but the addition power needs to be tailored to the typical working distances of individuals. Furthermore, after one year of wear, the addition power needs to be increased by at least 0.50 D to maintain efficacy.
Article
Ophthalmology
Mark A. Bullimore, Samantha Sze -Yee Lee, Katrina L. Schmid, Jos J. Rozema, Nicolas Leveziel, Edward A. H. Mallen, Nina Jacobsen, Rafael Iribarren, Pavan K. Verkicharla, Jan Roelof Polling, Paul Chamberlain
Summary: Myopia can start and progress during childhood as well as during adulthood. This review aims to summarize the published data on myopia onset and progression in young adults aged 18 to 40, to characterize myopia in this age group, and to identify gaps in the current understanding.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2023)
Article
Geriatrics & Gerontology
Jacqueline Ramke, Jennifer R. Evans, Esmael Habtamu, Nyawira Mwangi, Juan Carlos Silva, Bonnielin K. Swenor, Nathan Congdon, Hannah B. Faal, Allen Foster, David S. Friedman, Stephen Gichuhi, Jost B. Jonas, Peng T. Khaw, Fatima Kyari, Gudlavalleti V. S. Murthy, Ningli Wang, Tien Y. Wong, Richard Wormald, Mayinuer Yusufu, Hugh Taylor, Serge Resnikoff, Sheila K. West, Matthew J. Burton
Summary: Through the Grand Challenges in Global Eye Health exercise, key issues in improving eye health have been identified and specific challenges have been prioritised. This list can guide funders in investing in research and innovation in the field of eye health, and encourages collaboration among researchers, clinicians, and policy makers to address these challenges.
LANCET HEALTHY LONGEVITY
(2022)
Article
Ophthalmology
Dinesh Kaphle, Katrina L. Schmid, Leon N. Davies, Marwan Suheimat, David A. Atchison
Summary: The study aimed to investigate whether accommodation-induced changes in ciliary muscle dimensions differ between emmetropes and myopes, and to explore the effect of the image analysis method. The findings showed that myopes had longer and thicker ciliary muscles than emmetropes, and exhibited different patterns of changes during accommodation.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2022)
