scholarly journals Effects of multifocal soft contact lenses used to slow myopia progression on quality of vision in young adults

2016 ◽  
Vol 95 (1) ◽  
pp. e43-e53 ◽  
Author(s):  
Pauline Kang ◽  
Colm McAlinden ◽  
Christine F. Wildsoet
Keyword(s):  
Young Adults ◽  
Contact Lenses ◽  
Soft Contact ◽  
Myopia Progression ◽  
Soft Contact Lenses ◽  
Quality Of Vision

scholarly journals Hybrid contact lenses for the correction of primary and induced ametropias

2020 ◽  
Vol 13 (1) ◽  
pp. 102-107 ◽  
Author(s):  
V. V. Neroev ◽  
A. V. Myagkov ◽  
O. V. Guryanova ◽  
A. T. Khandzhyan ◽  
A. I. Yakunina
Keyword(s):  
Contact Lenses ◽  
Modern Method ◽  
Permeable Material ◽  
Soft Contact ◽  
Soft Contact Lenses ◽  
Quality Of Vision ◽  
Corneal Lens ◽  
Hydrophilic Material ◽  
Optical Zone

The review presents the data on the use of hybrid contact lenses (HCL), a modern method of contact correction of ametropias of diverse origins. A HCL has a central rigid optical zone made of highly gas-permeable material and a flexible peripheral part made of hydrophilic material. These lenses combine the optical effect of gas-permeable corneal lens with the comfort and stable fitting of soft contact lenses. Compared with the corneal (RGP) lenses, HCLs are more comfortable, often are better centrated and more stably fit on the eye. HCLs are successfully used in various refractive disorders: ametropias (with regular cornea), irregular astigmatism, presbyopia, including that combined with astigmatism. This type of lens is a good option of contact correction for patients who have high requirements to the quality of vision.

scholarly journals Experience in application of hybrid contact lenses for astigmatism correction

The Eye ◽  
2019 ◽  
Vol 127 (2019-3) ◽  
pp. 22-26
Author(s):  
Anush Khandjyan ◽  
Alexander Myagkov ◽  
Olga Guryanova ◽  
Olga Petrova
Keyword(s):  
Contact Lenses ◽  
Good Alternative ◽  
Permeable Material ◽  
Soft Contact ◽  
Soft Contact Lenses ◽  
Astigmatism Correction ◽  
Optical Part ◽  
Quality Of Vision ◽  
Hydrophilic Material

The review covers the issue of hybrid contact lenses application as one of the modern contact correction methods in patients with ametropias of various genesis. Hybrid contact lenses consist of a rigid central optical part made of highly gas-permeable material and a flexible peripheral part made of hydrophilic material. These lenses combine the optical correction qualities of gas-permeable corneal lenses with the comfort and stable fit usually provided by soft contact lenses. Compared to gas-permeable corneal lenses, hybrid lenses are more comfortable; often have better centration and more stable fit on the eye. Hybrid contact lenses successfully correct both types of astigmatism: regular and irregular. This type of lenses is a good alternative method of contact correction for patients who place heavy demands in terms of the quality of vision.

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.

scholarly journals STUDY OF THE OPTICAL POWER OF NANOPHOTONIC SOFT CONTACT LENSES BASED ON POLY (2- HYDROXYETHYL METHACRYLATE) AND FULLERENE

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Aleksandra Debeljković Mitrović ◽  
Dragomir Stamenković ◽  
Manuel Conte ◽  
Božica Bojović ◽  
Spomenko Mihajlović
Keyword(s):  
Contact Lens ◽  
Contact Lenses ◽  
Measurement Techniques ◽  
Optical Power ◽  
Soft Contact ◽  
Standard Material ◽  
Soft Contact Lenses ◽  
Soft Contact Lens ◽  
Power Cylinder

In this paper results of comparative study of the optical power of soft contact lenses (SCL) made of standard material for SCL and nanophotonic materials with different measurement techniques used for the final contact lens controllers are presented. Three types of nanophotonic soft contact lenses were made of standard polymacon material (Soleko SP38TM) incorporated with fullerene C60, fullerol C60(OH)24 and fullerene metformin hydroxylate C60(OH)12(OC4N5H10)12. For the purposes of material characterization for potential application as soft contact lenses, the optical properties of the soft contact lenses were measured by Rotlex and Nidek device. With Rotlex device the following optical results were obtained: optical power and map of defects, while with the Nidek device: optical power, cylinder power and cylinder axis. The obtained values of optical power and map of defects showed that the optical power of synthesized nanophotonic soft contact lens is same to the nominal value, while this was not the case for the standard soft contact lens. Also, the quality of the nanophotonic soft contact lens is better than the standard one. Hence, it is possible to synthesize new nanophotonic soft contact lenses of desired optical characteristics, implying possibilities for their application in this field.

scholarly journals Accommodation in emmetropic and myopic young adults wearing bifocal soft contact lenses

2008 ◽  
Vol 28 (1) ◽  
pp. 62-72 ◽  
Author(s):  
Janice Tarrant ◽  
Holly Severson ◽  
Christine F. Wildsoet
Keyword(s):  
Young Adults ◽  
Contact Lenses ◽  
Soft Contact ◽  
Soft Contact Lenses

scholarly journals Nonsurgical Procedures for Keratoconus Management

2017 ◽  
Vol 2017 ◽  
pp. 1-17 ◽  
Author(s):  
L. Rico-Del-Viejo ◽  
M. Garcia-Montero ◽  
J. L. Hernández-Verdejo ◽  
S. García-Lázaro ◽  
F. J. Gómez-Sanz ◽  
...  
Keyword(s):  
Contact Lens ◽  
Contact Lenses ◽  
Good Alternative ◽  
Lens System ◽  
Soft Contact ◽  
Visual Outcomes ◽  
Soft Contact Lenses ◽  
The Past ◽  
Contact Lens Fitting

Objectives. To describe the past 20 years’ correction modalities for keratoconus and their visual outcomes and possible complications.Methods. A review of the published literature related to the visual outcomes and possible complications in the context of keratoconus management using nonsurgical procedures for the last 20 years (glasses and contact lenses) was performed. Original articles that reported the outcome of any correction modalities of keratoconus management were reviewed.Results. The most nonsurgical procedure used on keratoconus management is the contact lens fitting. Soft contact lenses and soft toric contact lenses, rigid gas-permeable contact lenses, piggyback contact lens system, hybrid contact lenses, and scleral and corneoscleral contact lenses form the contemporary range of available lens types for keratoconus management with contact lenses. All of them try to restore the vision, improve the quality of life, and delay surgical procedures in patients with this disease. Complications are derived from the intolerance of using contact lens, and the use of each depends on keratoconus severity.Conclusions. In the context of nonsurgical procedures, the use of contact lenses for the management of keratoconic patients represents a good alternative to restore vision and improve the quality of live in this population.

scholarly journals Visual Performance and Optical Quality of Standardized Asymmetric Soft Contact Lenses in Patients With Keratoconus

2017 ◽  
Vol 58 (7) ◽  
pp. 2899 ◽  
Author(s):  
Asaki Suzaki ◽  
Naoyuki Maeda ◽  
Mutsumi Fuchihata ◽  
Shizuka Koh ◽  
Kohji Nishida ◽  
...  
Keyword(s):  
Contact Lenses ◽  
Optical Quality ◽  
Visual Performance ◽  
Soft Contact ◽  
Soft Contact Lenses

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

Presbyopia correction using multifocal contact lenses (through the example of Biofinity Multifocal)

The Eye ◽  
2020 ◽  
Vol 22 (129) ◽  
pp. 51-57
Author(s):  
Olga Kolchenko
Keyword(s):  
Contact Lenses ◽  
Tear Film ◽  
Population Ageing ◽  
Medicine Use ◽  
Soft Contact ◽  
Soft Contact Lenses ◽  
Vision Correction ◽  
Reading Glasses ◽  
Presbyopia Correction

Proper presbyopia correction has become increasingly relevant for clinical practice in recent years. This problem arises from both the population ageing as a whole and the need for a higher vision quality that directly affects the quality of patients’ life. There are many factors that require comfortable and high-quality vision correction with soft contact lenses, such as active sports, the desire not to change usual activities and feel younger, the reluctance to use extra reading glasses and glasses in general. We have to look for soft contact lenses with the wettest surface, lenses that can maintain tear film for as long as possible due to following reasons: disruption of eye surface’s wetting; dry eye syndrome, that sometimes arise with age; medicine use, one of the side effects of which is usually the reduction of tear production. The review provides recommendations for the fitting of multifocal contact lenses through the example of Biofinity Multifocal with different designs: distance-center and near-center. Conclusion: It is possible not only to achieve high vision quality at all distances in patients, but also to maintain their accustomed lifestyle and to minimize their astenopic complaints with the help of proper presbyopia correction.

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