Results 21 to 30 of about 1,517,602 (292)

Correlation between tear film lipid layer thickness and transepidermal water loss from the ocular area in patients with dry eye disease and in healthy controls.

PLoS ONE, 2022
PurposeThis study aimed to evaluate the correlation between tear film lipid layer thickness and transepidermal water loss (TEWL) from the ocular area in patients with short tear break-up time (TBUT)-type dry eye and healthy controls.MethodsThis ...
Do Yeh Yoon, Jeon Hee Eun, Joon Young Hyon   +2 more
doaj   +1 more source

The Correlation between Matrix Metalloproteinase-9 Point-of-Care Immunoassay, Tear Film Osmolarity, and Ocular Surface Parameters

Journal of Ophthalmology, 2022
Background. Dry eye disease is a multifactorial disease that is difficult to diagnose due to multiple causative factors. The study aimed to evaluate the correlations between tear film matrix metalloproteinase-9 (MMP-9), tear film osmolarity, and ocular ...
Min-Ji Kang, Hyun Seung Kim, Man Soo Kim, Eun Chul Kim   +3 more
doaj   +1 more source

The Effect of Age and Gender on Tear Film Breakup Time [PDF]

Egyptian Journal of Medical Research, 2021
Background: Dry eye is a very common yet often mis-diagnosed ocular disorder. The stability of the tear film plays an important role in the integrity of ocular surface.
Yehia M. Salah Eldin Mostafa, Mohamed Yasser Sayed Saif, Mostafa Abdelnaby Saeed, Samar Ahmad Mohammad ElSaadany   +3 more
doaj   +1 more source

Dry eye syndrome - vicious circle mechanism of disease

Journal of Education, Health and Sport, 2023
The correct structure of the tear film ensures the appropriate degree of hydration of the eye surface, and has a protective and nourishing function. Irregularities in the structure of one of the three layers of the tear film can contribute to dry eye ...
Ewelina Dybała, Izabela Dybała-Przygrodzka, Artur Aghadi, Iwona Cuber, Edyta Białowąs, Magdalena Mazurek   +5 more
doaj   +1 more source

Parameter identification for tear film thinning and breakup

, 2021
Braun, Richard J.Studying and modeling the mechanisms that affect the tear film and may cause tear film breakup can lead to better understanding of dry eye disease.
Luke, Rayanne A.
core   +1 more source

Alterations in the ocular surface and tear film following keratoplasty

Scientific Reports, 2022
The purpose of this study was to evaluate any alterations in the tear film and ocular surface beyond the early postoperative period following penetrating keratoplasty (PK) and deep anterior lamellar keratoplasty (DALK).
Jay J. Meyer, Akilesh Gokul, Michael T. M. Wang, Justin Sung, Jennifer P. Craig   +4 more
doaj   +1 more source

Tear matrix metalloproteinase-9 levels may help to follow a ocular surface injury in lagophthalmic eyes.

PLoS ONE, 2022
The preocular tear film is critically important for maintaining healthy ocular surface. In lagophthalmos, increased evaporation and tear film instability can occur.
Marcela Minaříková, Zdeněk Fík, Josef Štorm, Kateřina Helisová, Květoslava Ferrová, Gabriela Mahelková   +5 more
doaj   +2 more sources

Evaluation of different treatment modalities on the efficacy of hydroxypropyl Guar (HP-Guar) formulation on tear film stability (TFS) in subjects exposed to adverse environmental conditions

BMC Ophthalmology, 2023
The study aimed to assess the efficacy of hydroxypropyl guar (HP) formulation (Systane) to protect tear film parameters under desiccating environment using protection and relief treatment modalities.
Ali Abusharha, Ian E. Pearce, Tayyaba Afsar, Ali Alsaqr, Raied Fagehi, Suhail Razak   +5 more
doaj   +1 more source

Tear film lipids [PDF]

Experimental 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

Evaluating tear film stability in the human eye with high-speed videokeratoscopy [PDF]

, 2005
High-speed videokeratoscopy (HSV) is an emerging technology that has the potential to acquire information on the dynamics of corneal topography and tear-film behavior.
Iskander, D. Robert, Davis, Brett A., Collins, Michael J.   +2 more
core   +2 more sources