Article
Ophthalmology
Erin S. Tomiyama, David A. Berntsen, Kathryn Richdale
Summary: This study aimed to compare the effects of toric orthokeratology (TOK) and soft toric multifocal (STM) contact lenses on peripheral refraction in patients with astigmatism and myopia. The results showed that TOK induced greater myopic shift and astigmatism compared to STM, which may impact the efficacy of myopia management.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2022)
Article
Ophthalmology
Yanxian Chen, Decai Wang, Linxing Chen, William Yan, Mingguang He
Summary: This study examined the association between ocular biometry parameters and spherical equivalent changes in a highly myopic population in China. Results showed that with age, axial length and lens thickness increased while anterior chamber depth decreased. In highly myopic eyes, lens thickness was significantly associated with changes in axial length, while vitreous chamber depth was a prominent factor in spherical equivalent changes.
CLINICAL AND EXPERIMENTAL OPTOMETRY
(2021)
Article
Multidisciplinary Sciences
Zhu Huang, Wei Zhao, Ying-zheng Mao, Shan Hu, Chi-Xin Du
Summary: This retrospective study collected axial length and corneal aberration data on 78 eyes before and after orthokeratology treatment to identify the factors influencing axial length in children with myopia. The study found that the age when wearing orthokeratology lenses, lens type, and change in the C12 of the total corneal surface were the most important factors influencing axial length.
SCIENTIFIC REPORTS
(2023)
Article
Ophthalmology
Anken Wang, Chenhao Yang, Li Shen, Jiaying Wang, Zhehuan Zhang, Weiming Yang
Summary: This study retrospectively investigated the axial length changes in myopic children wearing orthokeratology lenses and found that after initial shortening, the axial length rapidly rebounded during the washout period and shortened again when lenses were re-worn. The changes in axial length were significantly correlated with the initial axial length. Therefore, measuring axial length after the washout period can provide a more objective and accurate evaluation of orthokeratology, and the existence and degree of axial shortening can predict long-term myopia development.
Article
Neurosciences
Fan Jiang, Xiaopeng Huang, Houxue Xia, Bingqi Wang, Fan Lu, Bin Zhang, Jun Jiang
Summary: The study found that the spatial distribution of the relative corneal refractive power shift plays a significant role in myopia control. Corneal reshaping induced less axial length elongation compared to multifocal soft contact lenses, indicating that contact lenses inducing RCRPS closer to the corneal center may have a better effect on myopia control.
FRONTIERS IN NEUROSCIENCE
(2021)
Article
Ophthalmology
Li-hua Yu, Wan-qing Jin, Xin-jie Mao, Jun Jiang
Summary: This study examined the effects of Ortho-K on myopic eyes, showing that it was equally effective in reducing myopic progression in moderate and high myopic eyes. Axial elongation was greater in males than females, and regardless of the difference in myopia, the rate of change in axial length decreased at the same rate with increasing age for both sexes.
CLINICAL AND EXPERIMENTAL OPTOMETRY
(2021)
Article
Ophthalmology
Michael Mueller, Charlotte Wortmann, Julia Paul, Katarzyna Pawlowicz, Eva Hemkeppler, Thomas Kohnen, Myriam Boehm
Summary: This study compared anterior chamber depth (ACD) and lens thickness (LT) measured by two different devices and found that there were no clinically relevant differences in ACD measurements for different eye-length groups (myopic, emmetropic, and hyperopic). However, there was a clinically relevant difference in LT measurements only for the group of myopic eyes.
Article
Ophthalmology
Binbin Su, Zhishu Bao, Yue Guo, Huihu Zheng, Jiawei Zhou, Fan Lu, Jun Jiang
Summary: The purpose of this study was to investigate the impact of orthokeratology in myopic children on shape discrimination under mesopic conditions with and without glare. The study found that orthokeratology resulted in a significant decrease in shape discrimination thresholds with glare, while the thresholds without glare remained stable.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2023)
Article
Ophthalmology
Chenghai Weng, Fei Xia, Dang Xu, Xingtao Zhou, Liangcheng Wu
Summary: This study examined the effect of myopic laser ablation on axial length growth and found that ablated eyes had lower axial length elongation compared to nonablated eyes. These findings support further research on the efficacy of laser myopia ablation as a new intervention for myopia progression.
Article
Ophthalmology
Li Chun Chang, Fu Jung Li, Chi Chin Sun, Li Ling Liao
Summary: This study aimed to illustrate the trajectories of myopia control and explore orthokeratology compliance for parents of myopic children within the first year. The findings show that parents play a proactive role in deciding on ortho-K treatment and that understanding non-compliance behaviors can help eye care professionals provide necessary assistance for optimal myopia treatment outcomes.
CONTACT LENS & ANTERIOR EYE
(2021)
Article
Ophthalmology
Peike Hu, Yingying Zhao, Duya Chen, Hailong Ni
Summary: This study evaluated the safety of overnight orthokeratology wear and found that factors such as age, refraction, and allergic conjunctivitis history were associated with corneal adverse events incidence. High refraction was identified as the key risk factor for significant adverse events.
CONTACT LENS & ANTERIOR EYE
(2021)
Article
Medicine, General & Internal
Qin Zhu, Jie Yin, Xuejiao Li, Min Hu, Liping Xue, Jieying Zhang, Yuan Zhou, Xiaofan Zhang, Yingting Zhu, Hua Zhong
Summary: This study evaluated the effects of long-term wear and discontinuation of Orthokeratology lenses on the biological parameters of eyeballs in children with myopia. The results showed that Orth-K can effectively retard axial elongation, reversibly reduce central corneal thickness, and increase central lens thickness in myopic children. However, it had no obvious effect on anterior chamber depth.
INTERNATIONAL JOURNAL OF MEDICAL SCIENCES
(2023)
Article
Nanoscience & Nanotechnology
Kun-Ling Li, Jing Wang, Heng Zhao, Jie Li, Li-Ya Zheng, Jin-Tao Si, Li Li, Peng Chen, Guang Chen
Summary: This study investigated the impact of using monocular orthokeratology lenses on axial length and the progress of anisometropia in children. Thirty children aged 8-12 years with myopic anisometropia were divided into an orthokeratology-using group and a non-using group. The study found that using monocular orthokeratology lenses effectively controlled the increase in axial length and the worsening of myopia, and also corrected anisometropia.
Article
Neurosciences
Guihua Liu, Yiyuan Wu, Hua Bi, Biying Wang, Tianpu Gu, Bei Du, Jianliang Tong, Bin Zhang, Ruihua Wei
Summary: The study aimed to investigate the time course of subjective visual function changes during the first month of orthokeratology treatment in myopic children and explore the associations with objective optical quality changes and axial length growth after 1 year of treatment. Results showed that most children peaked in subjective visual function on day 1 or 1 week after lens fitting, with no significant differences in axial growth among children with different peak days.
FRONTIERS IN NEUROSCIENCE
(2021)
Article
Ophthalmology
Bobeck S. Modjtahedi, Richard L. Abbott, Donald S. Fong, Flora Lum, Donald Tan
Summary: The AAO established the Task Force on Myopia in 2019 to address the global increase in myopia prevalence and its associated complications. Led by recognized experts from various fields, the Task Force aims to formulate an action plan to improve the issue from different perspectives.
