Objective: This study aimed to analyze the research hotspots and frontiers in orthokeratology using bibliometric methods, providing a scientific and precise reference for both new and established researchers.Methods: A bibliometric analysis was conducted on literature related to orthokeratology over the past three decades within the Web of Science Core Collection (WoSCC).  Analytical tools available in the R software environment were employed, integrating a machine learning-based bibliometric approach.Results: A total of 740 articles concerning orthokeratology research were retrieved from the WoSCC. Research on orthokeratology has shown a consistent upward trend, with an annual growth rate of 18.75%. China, Australia, and the United States are the most prolific countries in this field, with China making the largest contribution. The journals with the highest number of publications are Optometry and Vision Science (n=110), Contact Lens and Anterior Eye (n=96), and Eye & Contact Lens (n=72. Meanwhile, Pauline Cho (n=76) and Cheung SW (n=47) are the most active authors. Over the past three decades, common keywords in research literature have highlighted key areas, including corneal reshaping in pediatric populations, the prevalence and progression of myopia, contact lenses, refractive errors, and changes in axial length.Conclusions: In summary, this bibliometric analysis presents a comprehensive overview of the current state of orthokeratology research. It aids in gaining a better understanding of how  this field has developed over the past 30 years.

Objective: This study aimed to analyze the research hotspots and frontiers in orthokeratology using bibliometric methods, providing a scientific and precise reference for both new and established researchers.Methods: A bibliometric analysis was conducted on literature related to orthokeratology over the past three decades within the Web of Science Core Collection (WoSCC).  Analytical tools available in the R software environment were employed, integrating a machine learning-based bibliometric approach.Results: A total of 740 articles concerning orthokeratology research were retrieved from the WoSCC. Research on orthokeratology has shown a consistent upward trend, with an annual growth rate of 18.75%. China, Australia, and the United States are the most prolific countries in this field, with China making the largest contribution. The journals with the highest number of publications are Optometry and Vision Science (n=110), Contact Lens and Anterior Eye (n=96), and Eye & Contact Lens (n=72. Meanwhile, Pauline Cho (n=76) and Cheung SW (n=47) are the most active authors. Over the past three decades, common keywords in research literature have highlighted key areas, including corneal reshaping in pediatric populations, the prevalence and progression of myopia, contact lenses, refractive errors, and changes in axial length.Conclusions: In summary, this bibliometric analysis presents a comprehensive overview of the current state of orthokeratology research. It aids in gaining a better understanding of how  this field has developed over the past 30 years.

Objectives: To evaluate the performance of orthokeratology (ortho-k) lens reordering using software-designed system, so as to determine the feasibility of ortho-k lens reordering without discontinuing lens wear. Methods: This study is a retrospective analysis of data of ortho-k lens wearers who had a history of short-term discontinuation of lens wear. A total of 94 individuals aged over 8 years with spherical equivalent refraction ranging from -0.50 to -6.50 diopters were included. The corneal topography data at baseline (before ortho-k) and after lens wear discontinuation (cessation of ortho-k treatment) were imported separately into the lens-design software, along with corresponding refraction data. Subsequently, corneal and lens parameters were generated and compared. Intraclass correlation coefficients (ICC) were calculated, and Bland and Altman analyses were conducted. Results: All 94 children were involved in the retrospective analysis. Compared with baseline data, there was a high level of consistency between Rwo (without discontinuation) and Rwith (with discontinuation), with an ICC of 0.96 (P<0.001). Furthermore, the comparison of lens parameters generated by the Easyfit software between baseline and after short-term discontinuation showed a high degree of  consistency, with all of the ICC values exceeding 0.90. Similar results were obtained using the WAVE software, as both ICC values and Bland-Altman plots demonstrated a high level of consistency in lens parameters between two conditions (nearly all data points fell within the 95% LoAs ). Conclusions: It is feasible to directly reorder new ortho-k lenses using software fitting approaches. However, further investigations are ncessary to validate their practicability in a clinical setting.

Objectives: To evaluate the performance of orthokeratology (ortho-k) lens reordering using software-designed system, so as to determine the feasibility of ortho-k lens reordering without discontinuing lens wear. Methods: This study is a retrospective analysis of data of ortho-k lens wearers who had a history of short-term discontinuation of lens wear. A total of 94 individuals aged over 8 years with spherical equivalent refraction ranging from -0.50 to -6.50 diopters were included. The corneal topography data at baseline (before ortho-k) and after lens wear discontinuation (cessation of ortho-k treatment) were imported separately into the lens-design software, along with corresponding refraction data. Subsequently, corneal and lens parameters were generated and compared. Intraclass correlation coefficients (ICC) were calculated, and Bland and Altman analyses were conducted. Results: All 94 children were involved in the retrospective analysis. Compared with baseline data, there was a high level of consistency between Rwo (without discontinuation) and Rwith (with discontinuation), with an ICC of 0.96 (P<0.001). Furthermore, the comparison of lens parameters generated by the Easyfit software between baseline and after short-term discontinuation showed a high degree of  consistency, with all of the ICC values exceeding 0.90. Similar results were obtained using the WAVE software, as both ICC values and Bland-Altman plots demonstrated a high level of consistency in lens parameters between two conditions (nearly all data points fell within the 95% LoAs ). Conclusions: It is feasible to directly reorder new ortho-k lenses using software fitting approaches. However, further investigations are ncessary to validate their practicability in a clinical setting.

The choroid is a multifunctional, highly vascular, and dynamic tissue which contributes to ocular homeostasis and the regulation of eye growth in both animals and humans. Although challenging to reliably measure, recent advances in ocular imaging (particularly optical coherence tomography) has expanded the current understanding of the role of the choroid in ageing and refractive error development during childhood. This commentary considers recent advances in the field, particularly the impact of orthokeratology on choroidal thickness and contour in myopic children, and the potential use of choroidal metrics as a biomarker for future eye growth.

The choroid is a multifunctional, highly vascular, and dynamic tissue which contributes to ocular homeostasis and the regulation of eye growth in both animals and humans. Although challenging to reliably measure, recent advances in ocular imaging (particularly optical coherence tomography) has expanded the current understanding of the role of the choroid in ageing and refractive error development during childhood. This commentary considers recent advances in the field, particularly the impact of orthokeratology on choroidal thickness and contour in myopic children, and the potential use of choroidal metrics as a biomarker for future eye growth.