Results 31 to 40 of about 2,542 (193)

Upper eyelid predominance of meibomian gland dysfunction in postmenopausal women with primary acquired nasolacrimal duct obstruction [PDF]

BMC Ophthalmology
Purpose This study aimed to investigate the differential impairment of meibomian glands (MGs) in the upper and lower eyelids among postmenopausal women with primary acquired nasolacrimal duct obstruction (PANDO).
Haili Jin, Xianjie Chen, Yin Liu
doaj   +2 more sources

Effects of Aging on Human Meibum

Investigative Opthalmology & Visual Science, 2021
The purpose of this study was to determine if aging affects meibum lipid composition in non-meibomian gland dysfunction (MGD)/non-dry eye (DE) population. Aging has been repeatedly linked to pathological changes in various tissues and organs, including the onset of MGD and DE, in a number of clinical and population-wide surveys.
Butovich, Igor A., Suzuki, Tomo
openaire   +2 more sources

Examination of Human Meibum Collection and Extraction Techniques [PDF]

Optometry and Vision Science, 2011
ABSTRACT Purpose. To compare various meibum collection methods and extraction techniques. Methods. Sixty subjects, all successful contact lens wearers, were seen on two visits.
Kristina M, Haworth, Jason J, Nichols, Mirunalni, Thangavelu, Loraine T, Sinnott, Kelly K, Nichols   +4 more
openaire   +2 more sources

Differences in Meibum and Tear Lipid Composition and Conformation [PDF]

Cornea, 2019
Purpose: The compositional, structural, and functional relationships of meibum may provide insights into the loss of tear film stability. Although the conformation of meibum lipids has been studied rigorously, that of tear lipids has not.
Douglas, Borchman, Varun, Ramakrishnan, Collin, Henry, Aparna, Ramasubramanian   +3 more
openaire   +2 more sources

Dysfunction of the meibomian glands in patients with diabetes mellitus

Сахарный диабет, 2022
The prevalence of diabetes mellitus has increased in recent decades. The most common ophthalmic manifestations of diabetes mellitus are retinopathy, epitheliopathies, corneal erosion and dry eye syndrome, the symptoms of which are more pronounced than in
T. N. Safonova, E. S. Medvedeva
doaj   +1 more source

Relative abundance of predominant meibum microbiota.

, 2023
Relative abundance of predominant meibum microbiota.
Ngamjit Kasetsuwan (483456), Tanittha Chatsuwan (8576067), Pisut Pongchaikul (580299), Ubonwan Rasaruck (17696633), Thanachaporn Kittipibul (10762425)   +4 more
core   +1 more source

Concentration dependent cholesteryl-ester and wax-ester structural relationships and meibomian gland dysfunction

Biochemistry and Biophysics Reports, 2020
Background: With dry eye, the ratio of cholesteryl ester (CE) to wax ester (WE) decreases substantially in meibum, but the functional and structural consequences of this change are speculative.
Zofia A. Hetman, Douglas Borchman
doaj   +1 more source

Identification of phospholipids in human meibum by nano-electrospray ionisation tandem mass spectrometry [PDF]

, 2010
Meibum is believed to be the major source of tear film lipids, which are vital in the prevention of excess evaporation of the aqueous phase. The complete lipid composition of meibum has yet to be established.
Todd W. Mitchell, Ariyavidana, M. A., Stephen J. Blanksby, Jennifer T. Saville, Zhenjun Zhao, Mark D.P. Willcox, Manjula A. Ariyavidana, Willcox, M. D. P., Saville, J. T., Mitchell, T. W., Zhao, Z., Blanksby, Stephen J.   +11 more
core   +1 more source

Treatment of dry eye disease due to meibomian gland dysfunction using intense pulsed light and low-level light therapy

Delta Journal of Ophthalmology, 2021
Background Meibomian gland dysfunction (MGD) is an abnormal chronic state of meibomian glands in which there is quality and quantity alternations in the meibum glandular secretion or terminal duct obstruction. Patients with MGD show imbalance in the tear
Ali A Khalifa, Mohamed M.A Ibrahim, Mahmoud S.A Abdelrahman   +2 more
doaj   +1 more source

Meibomian glands, meibum, and meibogenesis [PDF]

Experimental Eye Research, 2017
Meibum is a lipid-rich secretion that is produced by fully differentiated meibocytes in the holocrine Meibomian glands (MG) of humans and most mammals. The secretion is a part of a defense mechanism that protects the ocular surface from hazardous environmental factors, and from desiccation.
openaire   +2 more sources