Results 61 to 70 of about 1,966,414 (185)

Tear pH: Hydrophilic lenses and the closed eye

, 1976
On a previous study of tear pH and the unfitted eye it was found that prolonged eye closure (i.e. overnight) resulted in a significant shift in the acid direction in 22 of the 23 patients measured.1 With the advent of continuous wear regimens, does the ...
Carney, Leo G., Hill, Richard M.
core  

Geometry of Modern Presbyopia-Correcting Intraocular Lenses and Changes in Haptic–Capsular Bag Behavior According to Compression and Different Well Diameters: A Bench Study Using Computed Tomography

Ophthalmology and Therapy
Introduction The geometry of an intraocular lens (IOL), the design of the haptics, and the optic–haptic junction play a role in initial and long-term visual outcome after cataract surgery.
Andreas F. Borkenstein, Eva-Maria Borkenstein   +1 more
doaj   +1 more source

Surfactant‐mediated electro‐dewetting of droplets in oil for liquid‐shape manipulation

Droplet
The capability to manipulate liquid shape at the microscale has enabled numerous microfluidic devices. Due to its simple electric actuation, electrowetting‐on‐dielectric has been widely used in a variety of microfluidic applications that require ...
Qining Leo Wang, Penghao Tian, Chang‐Jin “CJ” Kim   +2 more
doaj   +1 more source

Innovative Applications of Hydrogels in Contemporary Medicine

Gels
Hydrogels are hydrophilic, soft polymer networks with high water content and mechanical properties that are tunable; they are also biocompatible. Therefore, as biomaterials, they are of interest to modern medicine.
Maciej Rybicki, Karolina Czajkowska, Agata Grochowska, Bartłomiej Białas, Michał Dziatosz, Igor Karolczak, Julia Kot, Radosław Aleksander Wach, Karol Kamil Kłosiński   +8 more
doaj   +1 more source

Thermal Disinfection of Contact Lenses [PDF]

, 1987
The basic concepts associated with thermal disinfection of contact lenses are examined, and the mathematical models used to predict the probability of survival of micro-organisms are described and applied to common ocular pathogens.
Liubinas, Julius, Swenson, Graham, Carney, Leo G.   +2 more
core  

Contact lenses and the blink

, 1986
A cummulative method of analysing blink frequency and stability over time and with and without a contact lens on the eye is used to illustrate the range of responses which can occur.
Carney, Leo G., Hill, Richard M.
core  

How often are contact lenses worn?

, 2009
There are important clinical, academic and commercial reasons for seeking to develop a comprehensive understanding of the frequency of wear of different forms of contact lenses. Data that we have gathered from annual contact lens fitting surveys over the
Morgan, Philip B., Efron, Nathan
core   +1 more source

Life expectancy of rigid gas permeable and high water content contact lenses

, 1996
PURPOSE: The purpose of this study was to evaluate the life expectancy of various rigid gas permeable (RGP) lens materials used on a daily wear basis and to compare these results with the life expectancy of a matched group of soft lens wearers.
Jones, Lyndon, Efron, Nathan, Woods, Craig A.   +2 more
core  

BSA adsorption, antibiofilm and antifouling studies of N-tert-amylacrylamide based hydrogels

Hybrid Advances
Because of their special qualities—such as their high water content, softness, flexibility, and biocompatibility—hydrogels have grown in popularity. Hydrogels can be created by physically or chemically cross-linking hydrophilic polymers, both natural and
Krishnasami Jayanthi, Periyasamy Pazhanisamy, Kasi Chithra, William Shanthi, Arumugam Venkatesan, Dhurairaj Satheesh   +5 more
doaj   +1 more source

Factors influencing the prescribing of hydrogel contact lenses

, 2009
Despite the current market popularity of silicone hydrogel contact lenses, conventional hydrogel lenses still represent a significant proportion of the overall contact lens market.
Morgan, Philip B., Efron, Nathan, Philip B. Morgan, Nathan Efron   +3 more
core   +1 more source