Results 11 to 20 of about 165,929 (297)

Biological functions of tear film

Experimental 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   +5 more sources

Hydrophobic Silicon Quantum Dots for Potential Imaging of Tear Film Lipid Layer [PDF]

Nanomaterials
The tear film, consisting of the aqueous and lipid layers, maintains the homeostasis of the ocular surface; therefore, when disturbed, it can cause dry eye, which affects millions of people worldwide. Understanding the dynamics of the tear film layers is
Sidra Sarwat, Fiona Stapleton, Mark D. P. Willcox, Peter B. O’Mara, Maitreyee Roy   +4 more
doaj   +2 more sources

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

The Effect of Tear Supplementation on Ocular Surface Sensations during the Interblink Interval in Patients with Dry Eye. [PDF]

, 2015
PURPOSE: To investigate the characteristics of ocular surface sensations and corneal sensitivity during the interblink interval before and after tear supplementation in dry eye patients.
A Gomis, A Parra, A Parra, A Parra, A Sharma, A Tomlinson, AJ Bron, C Begley, C Belmonte, C Belmonte, C Belmonte, CA Blackie, CS De Paiva, CW Sindt, D Schmidl, DA Benedetto, DA Schaumberg, Deepak Shukla, GN Foulks, GR Snibson, GW Ousler, Huba J. Kiss, I Hartstein, Illés Kovács, J Varikooty, J Wang, JA Vega, JI Prydal, JJ Nichols, JP Craig, JR Palakuru, JR Paugh, Juana Gallar, KL Miller, Kristóf Perényi, Lóránt Dienes, M Rolando, M Tesón, M. Carmen Acosta, MA Sánchez, MC Acosta, MC Acosta, MC Acosta, MC Acosta, MT Christensen, MT Christensen, NJ Friedman, P Argueso, P Gifford, P Gifford, P Situ, P Versura, PE King-Smith, PE King-Smith, PJ Murphy, R Montes-Mico, RN Jamison, T Bourcier, U Benelli, Zoltán Z. Nagy, Zsuzsanna Szepessy, Árpád Barsi   +61 more
core   +9 more sources

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

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

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

Study of the dynamic tear film aberrations using a curvature sensing setup [PDF]

, 2006
The advancement in adaptive optics in recent years has increased the interest in the dynamic aberrations of the eye, including those introduced by the first optical surface provided by the tear film.
Gruppetta, S., Lacombe, F., Puget, P.
core   +3 more sources