Results 1 to 10 of about 5,274 (261)

A Meta-Analysis of In Vitro Release of Hydrophilic Therapeutics from Contact Lenses Using Mathematical Modeling [PDF]

Pharmaceutics
Background/Objectives: A meta-analysis was conducted to study the in vitro release of hydrophilic therapeutics from contact lenses, loaded using the soaking method.
Lucia Carichino, Kara L. Maki, Narshini D. Gunputh, Chau-Minh Phan   +3 more
doaj   +3 more sources

Fabrication of Hydrophilic Surface on Rigid Gas Permeable Contact Lenses to Enhance the Wettability Using Ultraviolet Laser System

Micromachines, 2019
The widely used rigid gas permeable (RGP) contact lenses provide higher oxygen permeability and tear exchange rate than do soft contact lenses. However, their wettability warrants improvement to enhance the wearing comfort.
Hsin-Yi Tsai, Yu-Chen Hsieh, Yu-Hsuan Lin, Han-Chao Chang, Yu-Hsiang Tang, Kuo-Cheng Huang   +5 more
doaj   +4 more sources

CORNEAL CHANGES FROM HYDROPHILIC CONTACT LENSES [PDF]

Optometry and Vision Science, 1973
ABSTRACT Corneal thickness and corneal runatore were mluurrd before and after the wearing of hydmphilic contact lcwr and it wu consttently found that the thicknas incd while the curvatu virtually remainrd ululted. On removal of tbe 1cases rbc cornea rrtudtoiu normal thickness within two hours.
Bailey, Ian L., Carney, Leo G.
openaire   +3 more sources

Comparison of Adhesion of Immortalized Human Iris-Derived Cells and Fibronectin on Phakic Intraocular Lenses Made of Different Polymer Base Materials [PDF]

Medicina
Background and Objectives: Posterior chamber phakic implantable contact lenses (Phakic-ICL) are widely used for refractive correction due to their efficacy and safety, including minimal corneal endothelial cell loss.
Kei Ichikawa, Yoshiki Tanaka, Rie Horai, Yu Kato, Kazuo Ichikawa, Naoki Yamamoto   +5 more
doaj   +2 more sources

Hybrid contact lenses for the correction of primary and induced ametropias

Российский офтальмологический журнал, 2020
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 ...
V. V. Neroev, A. V. Myagkov, O. V. Guryanova, A. T. Khandzhyan, A. I. Yakunina   +4 more
doaj   +3 more sources

Chlorhexidine kinetics of hydrophilic contact lenses

Journal of Pharmacy and Pharmacology, 1978
Abstract An average chlorhexidine concentration of 4·5 μg mg−1 lens (wet weight) was measured in HEMA-based contact lenses after 16 days of the following treatment. The lenses were maintained 16 h daily in 1·5 ml of a solution containing Chlorhexidine digluconate 0·005%, and then worn by adult albino rabbits 8 h daily.
D L, Mackeen, K, Green
openaire   +3 more sources

Sustained ocular drug delivery via polydopamine chitosan curcumin nanocomposite coatings [PDF]

Discover Nano
Traditional methods of ocular drug delivery (i.e.) eye drops, have limited effectiveness, with only $$\sim $$  5% the administered dose reaching deeper ocular tissues due to rapid drainage and barriers like the corneal epithelium and blood-retinal ...
Ashley He, Vincent Chen, Jiashing Yu
doaj   +2 more sources

Enhancing Performance of Silicone Hydrogel Contact Lenses with Hydrophilic Polyphenolic Coatings [PDF]

Journal of Functional Biomaterials
This study explores the application of a dopamine-assisted co-deposition strategy to modify the surface of daily disposable silicone hydrogel contact lenses.
Paul Demian, Daichi Nagaya, Roeya Refaei, Kaoru Iwai, Daiki Hasegawa, Masaki Baba, Phillip B. Messersmith, Mouad Lamrani   +7 more
doaj   +2 more sources

Hydrophilic Contact Lenses ‐ Their Effect on the Cornea [PDF]

Clinical and Experimental Optometry, 1972
Central corneal thickness and curvature were measured before and after the wearing of hydrophilic lenses. There was a consistent increase in central corneal thickness, while the corneal curvature was not significantly altered.
Carney, Leo G., Bailey, Ian L.
openaire   +2 more sources

Calcification Potential of Intraocular Lenses (IOL). Predictive in vitro and in vivo models [PDF]

Journal of Materials Science: Materials in Medicine
Opacification of intraocular lenses (IOLs) due to the formation of calcium phosphate occurs because of their contact with the aqueous humor (AH), which is supersaturated with respect to calcium phosphate.
Brad Gray, Petros Koutsoukos, Ling C. Huang   +2 more
doaj   +2 more sources