Ronghan Zhang, Shengwen Chen, Anqi Ye, Lulu Peng, Minfeng Chen, Chengwei Zhu, Yanli Wang, Sijun Zhao, Jia Qu, Xinjie Mao
{"title":"Corneal asymmetry contributes decentration in both spherical and toric orthokeratology lenses.","authors":"Ronghan Zhang, Shengwen Chen, Anqi Ye, Lulu Peng, Minfeng Chen, Chengwei Zhu, Yanli Wang, Sijun Zhao, Jia Qu, Xinjie Mao","doi":"10.1111/opo.13418","DOIUrl":"https://doi.org/10.1111/opo.13418","url":null,"abstract":"<p><strong>Purpose: </strong>To discuss the characteristics of anterior corneal elevation asymmetry in myopic eyes and clarify which kind of asymmetry most influenced lens position.</p><p><strong>Methods: </strong>In this retrospective study of 199 consecutive myopic participants, corneal topography was used to analyse asymmetry in anterior corneal elevation. Amongst them, 65 participants (65 eyes) who underwent orthokeratology (31 and 34 with spherical and toric lenses, respectively) were re-evaluated. Stepwise multiple linear regression analysis was used to identify the contributing factors that influenced lens decentration. Receiver operating characteristic curve (ROC) analysis was employed to assess how the corneal asymmetry vector could predict decentration.</p><p><strong>Results: </strong>There were no significant differences in treatment zone decentration (TZDec) between participants wearing toric and spherical lenses (p = 0.60 and 0.64 for 1 week and 1 month of wear, respectively). Amongst the underlying factors, the magnitude of TZDec was only correlated with the amount of corneal asymmetry vector (standardised β = 0.44, 0.48, p < 0.001 for all) after 1 week and 1 month of wear, and the direction of TZDec after 1 month of lens wear was associated with the angle of the asymmetry vector (r = 0.25, p = 0.04). ROC analysis showed that the magnitude of corneal asymmetry vector produced accurate discrimination between non-severe and severe decentration for 1 week and 1 month of wear (area under the curve was 0.93 ± 0.04 and 0.89 ± 0.05, respectively, p < 0.001). Amongst participants whose corneal asymmetry vector exceeded 41.06 μm and was oriented inferiorly, 35.29% showed severe decentration after 1 month of lens wear.</p><p><strong>Conclusions: </strong>In myopic participants, corneal asymmetry existed in the 8.0 mm chord diameter. If the asymmetry vector >41.06 μm and the direction was oriented inferiorly, then practitioners must be vigilant about severe decentration which would not be alleviated by a toric design.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142624613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impact of proxymetacaine on the dynamics of cyclopentolate in White 6- to 7-year-olds.","authors":"Megan Doyle, Veronica O'Dwyer, Síofra Harrington","doi":"10.1111/opo.13421","DOIUrl":"https://doi.org/10.1111/opo.13421","url":null,"abstract":"<p><strong>Purpose: </strong>This study compared the efficacy of cyclopentolate hydrochloride at 10-, 20- and 30-min post-instillation in White 6- to 7-year-olds, with and without prior instillation of proxymetacaine hydrochloride. The primary aim was to determine if accurate autorefraction values can be obtained sooner than the current standard of 30-min post-cycloplegia. The secondary aim was to investigate whether proxymetacaine hydrochloride enhances the efficiency of cyclopentolate.</p><p><strong>Methods: </strong>Participants were 112 White 6- to 7-year-olds from the Child Eye Health Study. The right eye received 0.5% proxymetacaine hydrochloride and 1.0% cyclopentolate hydrochloride, and the left eye received only 1.0% cyclopentolate hydrochloride. Non-cycloplegic and cycloplegic refractive error (at 0, 10, 20 and 30 min) was measured using a binocular, open-field autorefractometer. Data were analysed through paired t-tests, concordance analysis, linear regression, equivalence testing and Bland-Altman analysis, using the 95% limits of agreement.</p><p><strong>Results: </strong>Mean spherical equivalent refraction (SER) (SD) in the right eye at 0-, 10-, 20- and 30-min post-instillation was 0.62 (1.45) D, 1.52 (1.80) D, 1.64 (1.81) D and 1.72 (1.80) D, respectively. Mean left eye SER (SD) were 0.68 (1.24) D, 1.42 (1.66) D, 1.56 (1.66) D and 1.68 (1.72) D, respectively. Bland-Altman analysis showed a high level of agreement, and equivalence testing confirmed that there was no clinically significant difference in SER at 20 and 30 min in both eyes (within ±0.50 D), with mean differences of 0.08 (0.23) D in the right eye and 0.13 (0.30) D in the left eye (p = 0.21). However, SER at 10 and 30 min were equivalent in the right eye only.</p><p><strong>Conclusions: </strong>Accurate autorefraction values can be obtained 20-min post-instillation of 1.0% cyclopentolate in white children aged 6-7 years, potentially reducing clinical testing times. Proxymetacaine pre-instillation allows for reliable measurements as early as 10-min post-instillation of cyclopentolate. Further research is needed to validate these findings in non-White populations and to determine the safe discharge time post-proxymetacaine instillation.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142624614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ebenezer Zaabaar, Randy Asiamah, Samuel Kyei, Samuel Ankamah
{"title":"Myopia control strategies: A systematic review and meta-meta-analysis.","authors":"Ebenezer Zaabaar, Randy Asiamah, Samuel Kyei, Samuel Ankamah","doi":"10.1111/opo.13417","DOIUrl":"https://doi.org/10.1111/opo.13417","url":null,"abstract":"<p><strong>Purpose: </strong>To summarise pooled estimates of the efficacies of various myopia control interventions, as drawn from published meta-analyses.</p><p><strong>Method: </strong>PubMed, SCOPUS and Web of Science were searched from inception to February 2024 for systematic reviews and meta-analyses reporting treatment effects of various myopia control strategies. The qualities of the included meta-analyses were assessed using the 16-item A MeaSurement Tool to Assess systematic Reviews (AMSTAR) 2. An intervention was defined as having a clinically significant effect if it resulted in a change in spherical equivalent refraction (SER) of ≥0.50 D/year or axial length (AL) change of ≤-0.18 mm/year.</p><p><strong>Results: </strong>A total of 38 studies were identified. The overall respective changes in SER and AL, mean difference (95% CI) were high-concentration (≥0.5%) atropine 0.67 D (0.58-0.77) and -0.24 mm (-0.36 to -0.11); moderate-concentration (>0.05% to <0.5%) atropine 0.48 D (0.34-0.62) and -0.23 mm (-0.27 to -0.19); low-concentration (0.01%, 0.025%, 0.05%) atropine 0.33 D (0.23-0.43) and -0.14 mm (-0.19 to -0.09); orthokeratology -0.47 mm (-0.66 to -0.28); peripheral plus soft contact lenses 0.30 D (0.18-0.42) and -0.35 mm (-0.62 to -0.08); peripheral plus spectacles 0.77 D (0.40-1.14) and -0.43 mm (-0.78 to -0.08); multifocal spectacles 0.21 D (0.11-0.31); repeated low-level red light therapy 0.55 D (0.46-0.65) and -0.25 mm (-0.29 to -0.20); outdoor time 0.17 D (0.16-0.18) and -0.04 mm (-0.06 to -0.01).</p><p><strong>Conclusion: </strong>High and moderate concentrations of atropine, orthokeratology, peripheral plus spectacles and repeated low-level red light demonstrated clinically significant effects on slowing AL elongation, while high and moderate concentrations of atropine, peripheral plus spectacles and repeated low-level red light demonstrated clinically significant effects on slowing SER progression.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142624634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Martin Ming-Leung Ma, Ying Kang, Mitchell Scheiman, Qiwen Chen, Xuelian Ye, Liuqing Pan, Jiayu Deng, Guangxing Su, Guohui Zhang, Xiang Chen
{"title":"Effect of office-based vergence and anti-suppression therapy on binocular vision and accommodation in small-to-moderate angle intermittent exotropia: A randomised clinical trial.","authors":"Martin Ming-Leung Ma, Ying Kang, Mitchell Scheiman, Qiwen Chen, Xuelian Ye, Liuqing Pan, Jiayu Deng, Guangxing Su, Guohui Zhang, Xiang Chen","doi":"10.1111/opo.13415","DOIUrl":"https://doi.org/10.1111/opo.13415","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the short-term (1 week after completion of treatment) effect of office-based vergence and anti-suppression therapy (OBVAT) on binocular vision and accommodative function when compared to observation alone in children with small-to-moderate angle intermittent exotropia (IXT).</p><p><strong>Methods: </strong>In this single-masked (examiner masked), two-arm, single-centre randomised clinical trial, 40 participants, 6 to <18 years of age with untreated IXT were randomly assigned to OBVAT or observation alone. Participants assigned to therapy received 16 weeks of OBVAT (60 min per visit, once per week) with home reinforcement (15 min per day, 5 days a week). Therapy included vergence, accommodation and anti-suppression techniques. This paper reports the results of clinical measures of binocular vision and accommodation, including fusional vergence, near point of convergence, vergence facility, amplitude of accommodation, the Worth 4-dot test and the Fusion Maintenance Score (FMS).</p><p><strong>Results: </strong>Treatment group differences at the primary outcome visit significantly favoured the OBVAT group (n = 20) over the observation group (n = 16) in negative fusional vergence break point at both distance (p ≤ 0.001; r = 0.58) and near (adjusted mean difference: 12.3 Δ; 95% CI: 5.3-19.3 Δ; p = 0.001; partial eta squared: 0.28), positive fusional vergence break point at both distance (p = 0.009; r = 0.43) and near (adjusted mean difference: 20.6 Δ; 95% CI: 11.8-29.4 Δ; p ≤ 0.001; partial eta squared: 0.41), vergence facility (adjusted mean difference: 5.6 cpm; 95% CI: 1.9-9.4 cpm; p = 0.005; partial eta squared: 0.22) and the FMS (p = 0.007; r = 0.44).</p><p><strong>Conclusions: </strong>In this randomised clinical trial of participants aged 6 to <18 years with IXT, those in the OBVAT group had a significantly better fusional vergence range, vergence facility, near Worth 4-dot test result and FMS than the observation group at the 17-week visit. The improvement in these areas further support the effectiveness of OBVAT for improving IXT.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142605737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Refractive development II: Modelling normal and myopic eye growth.","authors":"Jos J Rozema, Arezoo Farzanfar","doi":"10.1111/opo.13412","DOIUrl":"10.1111/opo.13412","url":null,"abstract":"<p><strong>Purpose: </strong>During refractive development, eye growth is controlled by a combination of genetically pre-programmed processes and retinal feedback to minimise the refractive error. This work presents a basic differential model of how this process may take place.</p><p><strong>Methods: </strong>The description starts from two bi-exponential descriptions of the axial power P<sub>ax</sub> (or dioptric distance) and total refractive power P<sub>eye</sub>, the difference between which corresponds with the spherical refractive error S. This description is rewritten as an ordinary differential equation and supplemented by a retinal feedback function that combines retinal blur (closed loop) with a term describing excessive axial growth (open loop). This model is controlled by a total of 18 parameters that allow for a wide variety of developmental behaviours.</p><p><strong>Results: </strong>The proposed model reproduces refractive development growth curves found in the literature for both healthy and myopic eyes. An early onset of myopisation, a large growth term and a high minimum for the crystalline lens power all lead to higher degrees of myopia. Assigning more importance to the feedback than to the pre-programmed growth makes the model more sensitive to myopogenic influences. Applying refractive corrections to the model, undercorrection is found to produce more myopia. The model compensates for a low-powered imposed lens and can return to (near) emmetropia if that imposed lens is removed quickly thereafter. Finally, simulating the effect of a diffuser leads to high myopia.</p><p><strong>Conclusion: </strong>Using a series of basic assumptions, the proposed model recreates many well-known experimental and clinical results about refractive development from the literature while placing them in a standardised context. This contributes to a broader understanding of the origins of refractive errors, and future versions may help in the development of solutions for myopia control.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142583863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"What intrinsic factors affect the central corneal thickness?","authors":"Filipe Da Silva, João M M Linhares, Madalena Lira","doi":"10.1111/opo.13414","DOIUrl":"https://doi.org/10.1111/opo.13414","url":null,"abstract":"<p><p>The cornea is one of the tissues responsible for covering and protecting the inner structures of the eye. Central corneal thickness (CCT) is defined as the distance between the anterior epithelial surface and the posterior surface of the endothelial layer. This parameter plays a very important role regarding intraocular pressure (IOP) measurement, evaluation of corneal uniformity, selection of a suitable technique for corneal refractive surgery and the planning of surgical procedures to overcome corneal disease. This comprehensive review elucidates the multifaceted factors influencing the central corneal thickness. Recognising the impact of these factors not only enhances our understanding of corneal dynamics but also contributes significantly to the refinement of diagnostic and therapeutic strategies in ophthalmology.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jing Zhai, Wei Fang, Yunjie Zhang, Hengli Lian, Lijie Hou, Meixiao Shen, Fan Lu
{"title":"Effects of orthokeratology and spectacle lenses with highly aspherical lenslets on unilateral myopic anisometropia control.","authors":"Jing Zhai, Wei Fang, Yunjie Zhang, Hengli Lian, Lijie Hou, Meixiao Shen, Fan Lu","doi":"10.1111/opo.13388","DOIUrl":"10.1111/opo.13388","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the 1-year effects of orthokeratology (OK) lenses and spectacle lenses with highly aspherical lenslets (HALs) on axial length (AL) elongation in children with unilateral myopic anisometropia.</p><p><strong>Methods: </strong>This ambispective cohort study recruited 81 children aged 8-14 years with unilateral myopic anisometropia. Of these, 42 participants (mean age 11.07 ± 1.54 years; 23 males) were treated with monocular OK lenses (OK group), and 39 (mean age 10.64 ± 1.72 years; 22 males) with binocular HALs (HAL group). Changes in AL and spherical equivalent refraction (SER) from baseline at 3, 6 and 12 months were compared between eyes and groups. Kaplan-Meier estimation and Cox proportional hazard regression were performed to analyse the risk of myopia onset in the initially non-myopic eyes.</p><p><strong>Results: </strong>Mean axial elongation in the myopic and non-myopic eyes at the 12-month follow-up visit were 0.17 ± 0.20 and 0.41 ± 0.26 mm in the OK group (p < 0.001) and 0.10 ± 0.15 and 0.12 ± 0.12 mm in the HAL group (p = 0.32), respectively. Compared with the OK group, the non-myopic eyes in the HAL group had less axial elongation, lower cumulative myopia incidence and percentage of participants with rapid myopic shift at the 6- and 12 month follow-up (all p < 0.05). Cox regression analysis showed that a higher initial SER decreased the risk of myopia onset significantly in the initially non-myopic eyes (B = -2.06; 95% CI, 0.03-0.49; p = 0.003).</p><p><strong>Conclusions: </strong>Monocular OK lenses suppressed axial elongation in the myopic eye and minimised anisometropia; however, the non-treated contralateral eye may experience faster myopia onset and myopic shift. Binocular HALs can effectively reduce axial elongation in both eyes of children with unilateral myopic anisometropia.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":"1407-1413"},"PeriodicalIF":2.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142378052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sources of reduced visual acuity and spectacle treatment options for individuals with Down syndrome: Review of current literature.","authors":"Heather A Anderson","doi":"10.1111/opo.13372","DOIUrl":"10.1111/opo.13372","url":null,"abstract":"<p><p>Individuals with Down syndrome are known to have a greater prevalence of ocular conditions such as strabismus, nystagmus, elevated refractive error, poor accommodative function, elevated higher-order optical aberrations and corneal abnormalities. Related to these conditions, individuals with Down syndrome commonly have reduced best-corrected visual acuity at both far and near viewing distances across their lifespan. This review summarises the various optical sources of visual acuity reduction in this population and describes clinical trials that have evaluated alternative spectacle prescribing strategies to minimise these optical deficits. Although refractive corrections may still have limitations in their ability to normalise visual acuity for individuals with Down syndrome, the current literature provides evidence for eye care practitioners to consider in their prescribing practices for this population to maximise visual acuity. These considerations include accounting for the presence of elevated higher-order aberrations when determining refractive corrections and considering bifocal lens prescriptions, even for young children with Down syndrome.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":"1326-1345"},"PeriodicalIF":2.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141875484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Asif Iqbal, Damien Fisher, David Alonso-Caneiro, Michael J Collins, Stephen J Vincent
{"title":"The central and peripheral corneal response to short-term hypoxia.","authors":"Asif Iqbal, Damien Fisher, David Alonso-Caneiro, Michael J Collins, Stephen J Vincent","doi":"10.1111/opo.13380","DOIUrl":"10.1111/opo.13380","url":null,"abstract":"<p><strong>Purpose: </strong>To quantify the magnitude and recovery of central and limbal corneal oedema induced by short-term unilateral eyelid closure without contact lens wear.</p><p><strong>Methods: </strong>The left eye of 10 adults with healthy corneas was patched using a folded eye pad for 30 min. High-resolution optical coherence tomography images (which captured the limbal and central corneal regions simultaneously) were obtained before patching, immediately after eye opening and again at 1, 2, 5, 6, 9, 10, 14 and 15 mins after eyelid opening. Oedema was measured from the limbus (scleral spur) to the central cornea (thinnest corneal location) along the horizontal meridian.</p><p><strong>Results: </strong>A greater amount of limbal oedema was noted (mean [SD] 3.84 [1.79] %) compared to the central cornea (2.48 [0.61] %; p = 0.04) after 30 mins of unilateral eyelid closure. Both central and limbal corneal oedema recovered rapidly following eyelid opening, with no significant differences in the rate of corneal recovery between corneal locations (p = 0.90).</p><p><strong>Conclusions: </strong>Short-term unilateral eyelid closure resulted in ~55% more relative oedema in the limbal region compared to the central cornea. Rapid recovery of oedema and corneal overshoot (thinning beyond the baseline corneal thickness) was observed within 1-2 min of eyelid opening for both central and peripheral regions.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":"1524-1529"},"PeriodicalIF":2.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142004911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Spectacle correction may affect refractive progression in children with unilateral myopic anisometropia: A retrospective study.","authors":"Shuai Wang, Beilei Zhang, Qiming Liu, Fan Zhou, Yunyun Chen, Jingjing Xu","doi":"10.1111/opo.13382","DOIUrl":"10.1111/opo.13382","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the effect of spectacle correction on refractive progression in children with unilateral myopic anisometropia (UMA).</p><p><strong>Methods: </strong>In this retrospective study, 153 children with UMA (aged 8-12 years) were recruited and classified into an uncorrected (UC) group (n = 47) and a spectacle (SP) group (n = 106). The spherical equivalent refraction (SER) of the myopic eyes ranged from -0.75 to -4.00 D; the SER of the emmetropic eyes ranged from +1.00 to -0.25 D; anisometropia was ≥1.00 D and the follow-up duration was 1 year. Nineteen subjects from the SP group with follow-up records spanning at least 6 months before and after wearing spectacles were selected as a subgroup. Changes in the SER and axial length (AL), the degree of anisometropia and interocular AL differences of the two groups and the subgroup were analysed.</p><p><strong>Results: </strong>During the 1-year follow-up period, AL and SER changes in myopic eyes were significantly greater than those in emmetropic eyes in the UC group (p < 0.001). For the UC group, the degree of anisometropia and AL change increased (all p < 0.001). For the SP group, there were no significant differences in the degree of anisometropia or AL change (all p > 0.05). When comparing the groups, AL elongation of the myopic eyes in the UC group occurred significantly faster than in the SP group (p = 0.02), and AL elongation for the emmetropic eyes in the UC group occurred significantly slower than in the SP group (p = 0.04). For the subgroup, the AL and SER changes in the myopic eyes 6 months before wearing spectacles occurred significantly faster than those after correction (p < 0.001).</p><p><strong>Conclusions: </strong>Spectacle correction could prevent increased anisometropia in uncorrected children with UMA by slowing myopia progression in the myopic eyes and accelerating the myopic shift in the contralateral eye.</p>","PeriodicalId":19522,"journal":{"name":"Ophthalmic and Physiological Optics","volume":" ","pages":"1392-1397"},"PeriodicalIF":2.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142081167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}