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

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.

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Aleksandra Debeljković Mitrović ◽  
Dragomir Stamenković ◽  
Manuel Conte ◽  
Božica Bojović ◽  
Spomenko Mihajlović

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.


2019 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Tomoko Kaida ◽  
Chie Yukawa ◽  
Shizuka Higashi ◽  
Keiichiro Minami ◽  
Kazunori Miyata

2012 ◽  
Vol 90 ◽  
pp. 0-0
Author(s):  
K NIELSEN ◽  
H VORUM ◽  
N EHLERS ◽  
J HJORTDAL ◽  
B HONORé

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 ◽  
...  

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.


2017 ◽  
Vol 58 (7) ◽  
pp. 2899 ◽  
Author(s):  
Asaki Suzaki ◽  
Naoyuki Maeda ◽  
Mutsumi Fuchihata ◽  
Shizuka Koh ◽  
Kohji Nishida ◽  
...  

2014 ◽  
Vol 91 (12) ◽  
pp. 1406-1411 ◽  
Author(s):  
Dorota H. Szczesna-Iskander ◽  
D. Robert Iskander

2008 ◽  
Vol 1 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Miriam Kopf ◽  
Fan Yi ◽  
D. Robert Iskander ◽  
Michael J. Collins ◽  
Alyra J. Shaw ◽  
...  

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