A New Disposable ERG Electrode Utilizing a Hydrophilic Soft Contact Lens with High Water Content

1983 ◽  
pp. 343-343 ◽  
Author(s):  
K. Yanashima ◽  
S. Okisaka ◽  
Y. Inagaki ◽  
H. Kenjyo
Keyword(s):  
Water Content ◽  
Contact Lens ◽  
High Water ◽  
High Water Content ◽  
Soft Contact ◽  
Soft Contact Lens

scholarly journals The influence of water content and ionicity on the efficacy of soft contact lens care regimens on Pseudomonas aeruginosa

2021 ◽  
Vol 80 (1) ◽  
Author(s):  
Rekha Hansraj ◽  
Siddeeqa Jhetam ◽  
Jared Haridutt ◽  
Tymon Lahner ◽  
Sthabile Madlala ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Water Content ◽  
Contact Lens ◽  
Contact Lenses ◽  
High Water ◽  
Health Science ◽  
High Water Content ◽  
Three Solutions ◽  
Soft Contact ◽  
Soft Contact Lenses

Background: Contact lens care regimens appear to be prescribed based on familiarity or by matching contact lens brands rather than consideration to efficacy.Aim: This study compared the effectiveness of multipurpose and peroxide cleaning solutions on low- and high-water content ionic and non-ionic soft contact lenses, in removing Pseudomonas aeruginosa (P. aeruginosa).Setting: The laboratory work was conducted by health science students in a graduate level programme in the microbiology laboratory at a university in south-eastern South Africa.Methods: A quantitative analytical experimental design was used. Four groups (labelled I, II, III and IV) of soft contact lenses, varied ionicity and water content were inoculated with P. aeruginosa and then exposed to three solutions containing antimicrobial ingredients, polyaminopropyl biguanide (Dymed), hydrogen peroxide (H2O2) and polyquaternium-1 (Polyquad). Each group contained 14 soft contact lenses, with the exception of Group III in which eight lenses were used. Saline served as the control. After 18 h, the remaining colony-forming units were counted using visual inspection as an indicator of efficacy against P. aeruginosa.Results: The solution containing H2O2 was found to be the most effective in removing P. aeruginosa from all Food and Drug Administration (FDA) groups of contact lenses whilst Dymed was found to be comparatively ineffective for this organism. Water content and ionicity had no effect on the efficacy of the solutions.Conclusion: Practitioners should consider the efficacy of the active ingredients against microorganisms when dispensing contact lens solutions, particularly for contact lens wearers at risk for P. aeruginosa infections.

Effects of Lens Thickness and Water Content on Dryness and Tear dynamics on Soft Contact Lens

2005 ◽  
Vol 3 ◽  
pp. S90
Author(s):  
Kunio Maruyama ◽  
Norihiko Yokoi ◽  
Hisayo Higashihara ◽  
Shigeru Kinoshita
Keyword(s):  
Water Content ◽  
Contact Lens ◽  
Soft Contact ◽  
Lens Thickness ◽  
Soft Contact Lens

Glass-transition temperatures for soft-contact-lens materials. Dependence on water content

Polymer ◽  
2005 ◽  
Vol 46 (13) ◽  
pp. 4845-4852 ◽  
Author(s):  
Francesco Fornasiero ◽  
Marie Ung ◽  
Clayton J. Radke ◽  
John M. Prausnitz
Keyword(s):  
Glass Transition ◽  
Water Content ◽  
Contact Lens ◽  
Transition Temperatures ◽  
Soft Contact ◽  
Glass Transition Temperatures ◽  
Soft Contact Lens

Comparing the microflora of the conjunctiva and contact lens in therapeutic soft contact lens wearers

2020 ◽  
Vol 89 (6) ◽  
pp. 8-13
Author(s):  
T. A Veliksar ◽  
◽  
T. B. Gaidamaka ◽  
G. I. Drozhzhina ◽  
A. L. Molodaia ◽  
...  
Keyword(s):  
Contact Lens ◽  
Soft Contact ◽  
Soft Contact Lens

Hydrogels as Antibacterial Biomaterials

2018 ◽  
Vol 24 (8) ◽  
pp. 843-854 ◽  
Author(s):  
Weiguo Xu ◽  
Shujun Dong ◽  
Yuping Han ◽  
Shuqiang Li ◽  
Yang Liu
Keyword(s):  
Mechanical Properties ◽  
Drug Delivery ◽  
Tissue Engineering ◽  
Water Content ◽  
Oxygen Permeability ◽  
Structural Diversity ◽  
High Water ◽  
Clinical Applications ◽  
High Water Content ◽  
Biomedical Field

Hydrogels, as a class of materials for tissue engineering and drug delivery, have high water content and solid-like mechanical properties. Currently, hydrogels with an antibacterial function are a research hotspot in biomedical field. Many advanced antibacterial hydrogels have been developed, each possessing unique qualities, namely high water swellability, high oxygen permeability, improved biocompatibility, ease of loading and releasing drugs and structural diversity. In this article, an overview is provided on the preparation and applications of various antibacterial hydrogels. Furthermore, the prospects in biomedical researches and clinical applications are predicted.

Prevalence of ‘sensitive eyes’ in soft contact lens wearers

2012 ◽  
Vol 35 ◽  
pp. e19-e20
Author(s):  
Sheila B. Hickson-Curran ◽  
Michael Spyridon ◽  
Chris Hunt ◽  
Graeme Young
Keyword(s):  
Contact Lens ◽  
Soft Contact ◽  
Soft Contact Lens
Sign in / Sign up

Export Citation Format

Share Document