Study on the influence of crosslinking density and free polysiloxan chain length on oxygen permeability and hydrophilicity of multicomponent silicone hydrogels

2021 ◽  
Author(s):  
Shu Wu ◽  
Xueqin Zhang ◽  
Ying Sun ◽  
Hong Yang ◽  
Baoping Lin ◽  
...  
Keyword(s):  
Chain Length ◽  
Oxygen Permeability ◽  
Crosslinking Density ◽  
Silicone Hydrogels

scholarly journals Refractive behavior changes with six months daily wear of high and low oxygen permeability hydrogel contact lenses

2006 ◽  
Vol 65 (2) ◽  
Author(s):  
W.D.H. Gillan
Keyword(s):  
Oxygen Permeability ◽  
Contact Lenses ◽  
The Other ◽  
Behavior Changes ◽  
Low Oxygen ◽  
Soft Contact ◽  
Silicone Hydrogel ◽  
Refractive State ◽  
Soft Contact Lenses ◽  
Silicone Hydrogels

Introduction: The investigation of myopia and soft contact lenses is not new. Many reports show  that  the  wearing  of  silicone  hydrogel lenses as opposed to conventional disposable hydrogel lenses results in little progression of myopia in the eyes wearing silicone hydrogels. Method: Six subjects wore a silicone hydro-gel lens on one eye while the other eye wore a habitual disposable hydrogel lens for six months of daily wear. Fifty measurements of refractive state in each eye were taken prior to the subjects wearing a silicone lens in one eye and a conven-tional hydrogel lens in the other eye. After six months of daily wear another fifty measurements of refractive state were taken for each subject. Results:  Although  there  is  no  statisti-cal  support  for  the  findings  of  this  study, comet stereo-pairs are used to show the chang-es in refractive state for each subject. Four of  the  six  subjects  showed  an  increase  in myopia in the eye wearing the silicone lens. Discussion:  The  increase  in  myopia in eyes wearing a silicone hydrogel lens is contrary  to  the  findings  of  other  studies.

Influence of silicone distribution and mobility on the oxygen permeability of model silicone hydrogels

Polymer ◽  
2017 ◽  
Vol 118 ◽  
pp. 150-162 ◽  
Author(s):  
Michelle E. Seitz ◽  
Meredith E. Wiseman ◽  
Iris Hilker ◽  
Joachim Loos ◽  
Mingwen Tian ◽  
...  
Keyword(s):  
Oxygen Permeability ◽  
Silicone Hydrogels

The Relationship between Oxygen Permeability and Phase Separation Morphology of the Multicomponent Silicone Hydrogels

2014 ◽  
Vol 118 (50) ◽  
pp. 14640-14647 ◽  
Author(s):  
Zhengbai Zhao ◽  
Haijiao Xie ◽  
Shuangshuang An ◽  
Yong Jiang
Keyword(s):  
Phase Separation ◽  
Oxygen Permeability ◽  
Silicone Hydrogels ◽  
The Relationship

Satiation in humans is modulated by fatty acid chain length

2001 ◽  
Vol 120 (5) ◽  
pp. A710-A710
Author(s):  
S LAL ◽  
J MCLAUGHLIN ◽  
O NIAZ ◽  
G DOCKRAY ◽  
A VARRO ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Chain Length ◽  
Fatty Acid Chain Length ◽  
Fatty Acid Chain
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