Results 21 to 30 of about 1,450,826 (291)

Tear film lipids [PDF]

open access: yesExperimental Eye Research, 2013
Human meibomian gland secretions (MGS, or meibum) are formed from a complex mixture of lipids of different classes such as wax esters, cholesteryl esters, (O-acyl)-ω-hydroxy fatty acids (OAHFA) and their esters, acylglycerols, diacylated diols, free fatty acids, cholesterol, and a smaller amount of other polar and nonpolar lipids, whose chemical nature
openaire   +2 more sources

Association among Blink Rate, Changes in Ocular Surface Temperature, Tear Film Stability, and Functional Visual Acuity in Patients after Cataract Surgery

open access: yesJournal of Ophthalmology, 2019
Purpose. To investigate the association among the ocular surface temperature (OST), tear film stability, functional visual acuity (FVA), and blink rate in patients after cataract surgery. Methods. We recruited 98 eyes of 69 patients (mean age, 73.7 ± 5.2 
Takashi Itokawa   +6 more
doaj   +1 more source

Osmolality and tear film dynamics [PDF]

open access: yesClinical and Experimental Optometry, 2012
The tear film is a nourishing, lubricating and protecting layer that bathes the ocular surface. It is continuously replenished through cycles of production and elimination via evaporation, absorption and drainage. These processes are often referred to as tear film dynamics.
Ulrike, Stahl   +2 more
openaire   +2 more sources

Medical treatment for dry eye in patients with keratoconus after corneal cross-linking [PDF]

open access: yesКлиническая офтальмология, 2020
I.A. Bubnova, G.B. Egorova, V.V. Averich, T.S. Mitichkina Scientific Research Institute of Eye Diseases, Moscow, Russian Federation Aim: to assess the changes in precorneal tear film in patients with keratoconus after corneal ...
I.A. Bubnova   +3 more
doaj  

Comparison of the effects of first and second generation silicone hydrogel contact lens wear on tear film osmolarity Running title:Tear film osmolarity and silicone hydrogel contact lens wear [PDF]

open access: yesInternational Journal of Ophthalmology, 2013
AIM:To compare the effects of first and second generation silicone hydrogel (SiH) contact lens wear on tear film osmolarity.METHODS:The healthy subjects who have never used contact lenses before were enrolled in the study.
Guzin Iskeleli   +5 more
doaj   +1 more source

Biological functions of tear film

open access: yesExperimental Eye Research, 2020
Tears have a vital function to protect and lubricate the ocular surface. Tear production, distribution and clearance is tightly regulated by the lacrimal functional unit (LFU) to meet ocular surface demands. The tear film consists of an aqueous-mucin layer, containing fluid and soluble factors produced by the lacrimal glands and mucin secreted by the ...
Stephen C, Pflugfelder, Michael E, Stern
openaire   +3 more sources

Peripheral Neuropathy and Tear Film Dysfunction in Type 1 Diabetes Mellitus

open access: yesJournal of Diabetes Research, 2014
Purpose. To compare tear film metrics in patients with type 1 diabetes mellitus (DM) and healthy controls and investigate the association between peripheral neuropathy and ocular surface quality. Methods.
Stuti L. Misra   +6 more
doaj   +1 more source

PENGARUH EMISI DEBU SEMEN TERHADAP STATUS TEAR FILM MASYARAKAT DI SEKITAR PABRIK PT. SEMEN PADANG

open access: yesJurnal Kesehatan Andalas, 2018
Permukaan okular rentan terhadap efek iritatif dari debu semen tersebut karena epitel konyungtiva dan kornea hanya dilapisi oleh lapisan tipis tear film.
Muhammad Syauqie   +2 more
doaj   +1 more source

The tear film and ocular mucins [PDF]

open access: yesVeterinary Ophthalmology, 2004
AbstractThe trilaminar tear film, composed of the lipid, aqueous and mucin layers, has many functions including defending the ocular surface. The aqueous layer has several soluble antimicrobial factors that protect the ocular surface. Ocular mucins have recently been studied with regard to their role in the defense of the eye as well as in dry eye ...
Harriet J, Davidson, Vanessa J, Kuonen
openaire   +2 more sources

Extensive characterization of human tear fluid collected using different techniques unravels the presence of novel lipid amphiphiles1[S]

open access: yesJournal of Lipid Research, 2014
The tear film covers the anterior eye and the precise balance of its various constituting components is critical for maintaining ocular health. The composition of the tear film amphiphilic lipid sublayer, in particular, has largely remained a matter of ...
Sin Man Lam   +5 more
doaj   +1 more source

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