scholarly journals Bifocal and Multifocal Contact Lenses for Presbyopia and Myopia Control

2020 ◽  
Vol 2020 ◽  
pp. 1-18 ◽  
Author(s):  
Laura Remón ◽  
Pablo Pérez-Merino ◽  
Rute J. Macedo-de-Araújo ◽  
Ana I. Amorim-de-Sousa ◽  
José M. González-Méijome
Keyword(s):  
Contact Lenses ◽  
Clinical Performance ◽  
Adult Population ◽  
Intraocular Lenses ◽  
Myopia Progression ◽  
Large Numbers ◽  
Recent Developments ◽  
Clinical Performance Assessment ◽  
Presbyopia Correction ◽  
Myopia Control

Bifocal and multifocal optical devices are intended to get images into focus from objects placed at different distances from the observer. Spectacles, contact lenses, and intraocular lenses can meet the requirements to provide such a solution. Contact lenses provide unique characteristics as a platform for implementing bifocality and multifocality. Compared to spectacles, they are closer to the eye, providing a wider field of view, less distortion, and their use is more consistent as they are not so easily removed along the day. In addition, contact lenses are also minimally invasive, can be easily exchangeable, and, therefore, suitable for conditions in which surgical procedures are not indicated. Contact lenses can remain centered with the eye despite eye movements, providing the possibility for simultaneous imaging from different object distances. The main current indications for bifocal and multifocal contact lenses include presbyopia correction in adult population and myopia control in children. Considering the large numbers of potential candidates for optical correction of presbyopia and the demographic trends in myopia, the potential impact of contact lenses for presbyopia and myopia applications is undoubtedly tremendous. However, the ocular characteristics and expectations vary significantly between young and older candidates and impose different challenges in fitting bifocal and multifocal contact lenses for the correction of presbyopia and myopia control. This review presents the recent developments in material platforms, optical designs, simulated visual performance, and the clinical performance assessment of bifocal and multifocal contact lenses for presbyopia correction and/or myopia progression control.

scholarly journals Myopia Control with Combination Low-Dose Atropine and Peripheral Defocus Soft Contact Lenses: A Case Series

2021 ◽  
pp. 548-554
Author(s):  
Nir Erdinest ◽  
Naomi London ◽  
Nadav Levinger ◽  
Yair Morad
Keyword(s):  
Low Dose ◽  
Contact Lenses ◽  
Case Series ◽  
Concentric Circle ◽  
Retrospective Case ◽  
Soft Contact ◽  
Myopia Progression ◽  
Soft Contact Lenses ◽  
Center Distance ◽  
Myopia Control

The goal of this retrospective case series is to demonstrate the effectivity of combination low-dose atropine therapy with peripheral defocus, double concentric circle design with a center distance soft contact lenses at controlling myopia progression over 1 year of treatment. Included in this series are 3 female children aged 8–10 years with progressing myopia averaging −4.37 ± 0.88 D at the beginning of treatment. Their average annual myopic progression during the 3 years prior to therapy was 1.12 ± 0.75 D. They had not attempted any myopia control treatments prior to this therapy. The children were treated with a combination of 0.01% atropine therapy with spherical peripheral defocus daily replacement soft lenses MiSight<sup>®</sup> 1 day (Cooper Vision, Phoenix, AZ, USA). They underwent cycloplegic refraction, and a slit-lamp evaluation every 6 months which confirmed no adverse reactions or staining was present. Each of the 3 children exhibited an average of 0.25 ± 0.25 D of myopia progression at the end of 1 year of treatment. To the best of the authors’ knowledge, this is the first published study exhibiting that combining low-dose atropine and peripheral defocus soft contact lenses is effective at controlling children’s moderate to severe myopia progression during 1 year of therapy.

Presbyopia Correction Using Multifocal Soft Contact Lenses in Patients With Monofocal Intraocular Lenses

2019 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Tomoko Kaida ◽  
Chie Yukawa ◽  
Shizuka Higashi ◽  
Keiichiro Minami ◽  
Kazunori Miyata
Keyword(s):  
Contact Lenses ◽  
Intraocular Lenses ◽  
Soft Contact ◽  
Soft Contact Lenses ◽  
Presbyopia Correction

Myopiekontrolle: aktuelle Strategien

2021 ◽  
Vol 1 (5) ◽  
pp. 148-155
Keyword(s):  
Contact Lenses ◽  
Long Term Effects ◽  
Soft Contact ◽  
Myopia Progression ◽  
Soft Contact Lenses ◽  
Slowing Down ◽  
The Future ◽  
Progressive Myopia ◽  
The Individual ◽  
Myopia Control

Purpose. The prevalence of myopia is increasing worldwide and its long-term effects can have major impacts on eye health. Paediatric onset of myopia leads to a higher risk for developing high levels of myopia in adulthood. Slowing down or stopping myopia progression is an important task for the future. Material and Methods. Based on a literature review, the latest developments in the field of myopia control for children were summarized. The current study situation for orthokeratology, soft contact lenses, atropine therapy and spectacle lenses for the management of myopia is discussed in detail. Results. Results on the safety and effectiveness of orthokeratology and modified soft contact lenses are exceedingly consistent. Soft multifocal contact lenses, as well as newer spectacle lenses, recently received regulatory approval for myopia control. Studies on the administration of atropine recommend a dosage of 0.01 - 0.05 %. All methods slow down myopia progression and decrease axial length growth of the eye. Side effects, adverse events or discontinuation of treatment only occur in the rarest of cases. Orthokeratology and atropine continue to deliver the best results. Conclusion. From today’s perspective, carrying out myopia control can be recommended with great certainty. The choice of method depends on the individual requirements of each patient, with all methods offering success in reducing myopia progression. In the future, even more advanced contact lens geometries, more precise atropine dosages or improved optics of spectacle lenses will further increase the success of the treatment. Keywords. Progressive myopia, myopia control, children, contact lenses, atropine, spectacle lenses

Myopia control with orthokeratology contact lenses in Spain (MCOS): predictive factors associated with myopia progression

2012 ◽  
Vol 35 ◽  
pp. e16 ◽  
Author(s):  
Jacinto Santodomingo-Rubido ◽  
César Villa-Collar ◽  
Bernard Gilmartin ◽  
Ramón Gutiérrez-Ortega
Keyword(s):  
Predictive Factors ◽  
Contact Lenses ◽  
Myopia Progression ◽  
Factors Associated ◽  
Myopia Control

scholarly journals Regarding effectiveness of atropine use in children and adolescents with progressive myopia (literature review)

The Eye ◽  
2019 ◽  
Vol 126 (2019-2) ◽  
pp. 40-50
Author(s):  
Alexander Myagkov ◽  
Tatiana Verzhanskaya ◽  
Ekaterina Shibalko
Keyword(s):  
Children And Adolescents ◽  
Adult Population ◽  
Professional Community ◽  
The United States ◽  
Myopia Progression ◽  
Pharmacological Agents ◽  
Maximum Period ◽  
Negative Side Effects ◽  
Based Medicine ◽  
Myopia Control

The issue of myopia prevention or myopia control is becoming more and more relevant every year. The approaches to myopia pathogenesis and myopia control have changed fundamentally, stereotypes have been dispelled, hypotheses and numerous studies are becom¬ing the basis of new scientific developments. However, the reality dictates the necessity to integrate the updated evidence based medicine data regarding myopia control into the clinical ophthalmological practice. The main reason that concerns the professional community is a growing prevalence of progressive my¬opia among children and adolescents around the world. The incidence of myopia among the adult population of European countries and the United States is estimat¬ed at 20-50%, whereas in Asian countries it amounts to 60-90%. In recent years, there was an increased interest towards the use of conservative methods of treatment in order to stabilize myopia, including the use of pharmacological agents. The publications from 1964 up until today were analyzed in the following review. They were focused on the results of studies that showed the ef¬fect of different concentrations of atropine on myopia progression in children and adolescents who had been observed during a maximum period of 5 years. Conclusion. According to numerous studies, low-concentration atropine (0.01%) is an effective mean to slow the progression of myopia and stabilize refraction. In addition, long-term therapeutic use of this particular concentration of atropine is associated with the least frequent occurrence of negative side effects.

CONTROLLING MYOPIA PROGRESSION IN CHILDREN

2020 ◽  
Vol 4 (8) ◽  
Author(s):  
Neelam Verma
Keyword(s):  
Systematic Review ◽  
Contact Lenses ◽  
Treatment Options ◽  
East Asian ◽  
Asian Countries ◽  
Myopia Progression ◽  
The Us ◽  
Progressive Myopia ◽  
Pharmaceutical Agents ◽  
Myopia Control

Main aim of this article was a systematic review on causes and management of Myopia progression in children. Myopia is a general disorder, affecting just about one-third of the US popula­tion and over 90% of the population in some East Asian countries. Elevated amounts of myopia are connected with a bigger risk of sight-threatening troubles, such as retinal detachment, choroidal degeneration, cataracts and glaucoma. Slowing the progression of myopia could potentially advantage millions of children in the India. Few approaches used for myopia organize have proven to be useful. Treatment options such as undercorrection of myopia, gas permeable contact lenses, and bifocal or multifocal spectacles have all been proven to be inef­fective for myopia control, although one recent randomized clinical trial using executive top bifocal spectacles on children with progressive myopia has shown to decrease the progression to nearly half of the control subjects. The most effective methods are the use of orthokeratology contact lenses, soft bifocal contact lenses, and pharmaceutical agents such as atropine, timolol or pirenzepine. Keyword: Myopia progression, pharmaceutical agents, lenses, treatment.

Slowing Down Myopia Progression with Contact Lenses – Everyday Cases from the Clinic

2021 ◽  
Vol 238 (04) ◽  
pp. 437-442
Author(s):  
Ana Paula Ribeiro Reis ◽  
Anja Palmowski-Wolfe ◽  
Ralf Beuschel
Keyword(s):  
Risk Factors ◽  
Environmental Risk ◽  
Contact Lenses ◽  
Environmental Risk Factors ◽  
World Population ◽  
Myopia Progression ◽  
Clinical Records ◽  
The Impact ◽  
Myopia Control

Abstract Background An estimated 49.8% of the world population will be myopic by 2050. Multifocal contact lenses (MFCLs) and orthokeratology (OK) reduce peripheral retinal hyperopic defocus, which animal studies have shown to positively impact eye growth. MFCLs are expected to slow myopic progression by 20 – 50% and OK by 30 – 60%, making them valuable therapeutic tools. In view of the guidelines for myopia management published by the International Myopia Institute in 2019, the aim of this retrospective data analysis of a tertiary care center was to review past experience with OK and MFCLs for myopia control and gain information to update current practice. Patients and Methods The contact lens (CL) database of the Eye Clinic of the University Hospital of Basel was searched with the label “myopia progression” between January 2012 – 2020. Patients were included if they gave informed consent, were younger than 19 years old at baseline, and had no ocular comorbidities that could potentially compromise vision. Primary outcomes were progression of spherical equivalent refraction for MFCL patients and progression of axial length (AL) for the OK group, comparing with historical data from OK trials. Secondary outcomes were the presence of risk factors for myopia, age, refractive error at baseline, follow-up duration, and adverse effects during therapy. Results Twenty-one patients could be included, with a mean age of 12.80 ± 3.32 years (y) at baseline. The majority of patients were older than 12 years and already myopic (− 3.89 ± 2.30 diopters) when control treatment was started. Overall, follow-up ranged from 0.08 to 6.33 years (2.03 ± 1.66 y). In the patients treated with MFCLs, myopia control improved significantly when patients changed from spectacles to MFCLs. In the OK group, 14% dropped out during the first year and 2 patients had multiple AL measurements during therapy, which showed a slower growth of AL when compared to other OK trials and controls with spectacles. There were two cases of non-severe keratitis. Environmental risk factors had not been documented and only 48% of clinical records had a documented family risk assessment. Conclusion Patients showed a slower myopia progression under MFCLs or OK, which supports their role as a treatment option in myopia management. In this regard, AL measurement is an important additional parameter to be included in the assessment of myopia progression in clinical practice. Identification of children at risk of developing high/pathologic myopia (family history, environmental risk factors) needs to improve so that the first stages of myopic shift can be recognized and targeted. Changes in lifestyle should be actively encouraged, especially when the impact of decreases in outdoor time secondary to COVID-19 is yet to become clear.

scholarly journals Myopia Control with a Novel Peripheral Gradient Soft Lens and Orthokeratology: A 2-Year Clinical Trial

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Jaime Pauné ◽  
Hari Morales ◽  
Jesús Armengol ◽  
Lluisa Quevedo ◽  
Miguel Faria-Ribeiro ◽  
...  
Keyword(s):  
Contact Lenses ◽  
Study Groups ◽  
Control Group ◽  
Myopia Progression ◽  
Axial Elongation ◽  
Children And Adolescent ◽  
Single Vision ◽  
The Mean ◽  
Prospective Longitudinal ◽  
Myopia Control

Objective.To evaluate the degree of axial elongation with soft radial refractive gradient (SRRG) contact lenses, orthokeratology (OK), and single vision (SV) spectacle lenses (control) during a period of 1 year before treatment and 2 years after treatment.Methods.This was a prospective, longitudinal, nonrandomized study. The study groups consisted of 30, 29, and 41 children, respectively. The axial length (AL) was measured during 2 years after recruitment and lens fitting.Results.The baseline refractive sphere was correlated significantly (Spearman’s Rho (ρ) correlation = 0.542;P< 0.0001) with the amount of myopia progression before baseline. After 2 years, the mean myopia progression values for the SRRG, OK, and SV groups were −0.56 ± 0.51, −0.32 ± 0.53, and −0.98 ± 0.58 diopter, respectively. The results represent reductions in myopic progression of 43% and 67% for the SRRG and OK groups, respectively, compared to the SV group. The AL increased 27% and 38% less in the SRRG and OK groups, respectively compared with the SV group at the 2-year visit (P< 0.05). Axial elongation was not significantly different between SRRG and OK (P= 0.430).Conclusion.The SRRG lens significantly decreased AL elongation compared to the SV control group. The SRRG lens was similarly effective to OK in preventing myopia progression in myopic children and adolescent.

scholarly journals Update and guidance on management of myopia. European Society of Ophthalmology in cooperation with International Myopia Institute

2021 ◽  
pp. 112067212199896
Author(s):  
János Németh ◽  
Beáta Tapasztó ◽  
Wagih A Aclimandos ◽  
Philippe Kestelyn ◽  
Jost B Jonas ◽  
...  
Keyword(s):  
European Society ◽  
High Myopia ◽  
Treatment Options ◽  
Vision Impairment ◽  
Pathological Myopia ◽  
Myopia Progression ◽  
Preventive Actions ◽  
Prevalence Estimates ◽  
Number Of Individuals ◽  
Myopia Control

The prevalence of myopia is increasing extensively worldwide. The number of people with myopia in 2020 is predicted to be 2.6 billion globally, which is expected to rise up to 4.9 billion by 2050, unless preventive actions and interventions are taken. The number of individuals with high myopia is also increasing substantially and pathological myopia is predicted to become the most common cause of irreversible vision impairment and blindness worldwide and also in Europe. These prevalence estimates indicate the importance of reducing the burden of myopia by means of myopia control interventions to prevent myopia onset and to slow down myopia progression. Due to the urgency of the situation, the European Society of Ophthalmology decided to publish this update of the current information and guidance on management of myopia. The pathogenesis and genetics of myopia are also summarized and epidemiology, risk factors, preventive and treatment options are discussed in details.

scholarly journals Myopia control effect of defocus incorporated multiple segments (DIMS) spectacle lens in Chinese children: results of a 3-year follow-up study

2021 ◽  
pp. bjophthalmol-2020-317664
Author(s):  
Carly SY Lam ◽  
Wing Chun Tang ◽  
Paul H Lee ◽  
Han Yu Zhang ◽  
Hua Qi ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Mean Difference ◽  
Historical Control ◽  
Control Group ◽  
Control Effect ◽  
Myopia Progression ◽  
The Third ◽  
Spherical Equivalent Refraction ◽  
Mean Differences ◽  
Myopia Control

AimsTo determine myopia progression in children who continued to wear the defocus incorporated multiple segments (DIMS) lenses or switched from single vision (SV) to DIMS lenses for a 1-year period following a 2-year myopia control trial.Methods128 children participated in this study. The children who had worn DIMS lenses continued to wear DIMS lenses (DIMS group), and children who had worn SV lenses switched to wear DIMS lenses (Control-to-DIMS group). Cycloplegic spherical equivalent refraction (SER) and axial length (AL) were measured at 6-month interval. Historical controls were age matched to the DIMS group at 24 months and used for comparing the third-year changes.ResultsOver 3 years, SER and AL changes in the DIMS group (n=65) were −0.52±0.69D and 0.31±0.26 mm; these changes were not statistically significant over time (repeated measures analysis of variance, p>0.05).SER (−0.04±0. 38D) and AL (0.08±0.12 mm) changes in the Control-to-DIMS group (n=55) in the third year were less compared with the first (mean difference=0.45 ± 0.30D, 0.21±0.11 mm, p<0.001) and second (0.34±0.30D, 0.12±0.10 mm, p<0.001) years.Changes in SER and AL in both groups over that period were significantly less than in the historical control group (DIMS vs historical control: mean difference=−0.18±0.42D, p=0.012; 0.08±0.15 mm, p=0.001; Control-to-DIMS versus historical control: adjusted mean differences=−0.30±0.42D, p<0.001; 0.12±0.16 mm, p<0.001).ConclusionsMyopia control effect was sustained in the third year in children who had used the DIMS spectacles in the previous 2 years and was also shown in the children switching from SV to DIMS lenses.

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