Results 21 to 30 of about 165,929 (297)
The effect of polar lipids on tear film dynamics [PDF]
, 2009 In this paper we present a mathematical model describing the effect of polar lipids on the evolution of a precorneal tear film, with the aim of explaining the interesting experimentally observed phenomenon that the tear film continues to move upwards ...
A. Heryudono +28 more
core +1 more source
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
Curvature sensor for the measurement of the static corneal topography and the dynamic tear film topography in the human eye [PDF]
, 2005 A system to measure the topography of the first optical surface of the human eye noninvasively by using a curvature sensor is described. The static corneal topography and the dynamic topography of the tear film can both be measured, and the topographies ...
Gruppetta, S. +3 more
core +3 more sources
The tear ferning test: a simple clinical technique to evaluate the ocular tear film [PDF]
, 2014 This is the peer reviewed version of the following article: Masmali, A. M., Purslow, C., & Murphy, P. J. (2014). The tear ferning test: a simple clinical technique to evaluate the ocular tear film: The tear ferning test.
Masmali, Ali M. +2 more
core +1 more source
Tear ferning in normal dogs and dogs with keratoconjunctivitis sicca [PDF]
, 2017 This study evaluates tear ferning as an ancillary technique for the evaluation of the canine tear film in normal eyes and eyes affected by keratoconjunctivitis sicca (KCS).
Hewitt, H, Williams, DL
core +2 more sources
Study of the dynamic aberrations of the human tear film [PDF]
, 2005 The dynamic aberrations introduced by the human tear film are studied by measuring the topography of the tear film surface on 14 subjects using a curvature sensing setup. The RMS wavefront error variation of the data obtained is presented showing the non-
Diaz-Santana +15 more
core +3 more sources
Journal of Ophthalmology, 2016 Purpose. To assess the tear film quantity and correlate it with the quality and stability of the tear film in diabetics and compare them to age matched controls. Introduction. Diabetes affects tear film parameters in multiple ways. Poor metabolic control
Iman M. Eissa +2 more
doaj +1 more source
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 +5 more
doaj +1 more source
Analysis of the pathogenic factors and management of dry eye in ocular surface disorders [PDF]
, 2017 The tear film represents the interface between the eye and the environment. The alteration of the delicate balance that regulates the secretion and distribution of the tear film determines the dry eye (DE) syndrome. Despite having a multifactorial origin,
Albietz +14 more
core +1 more source
Plan-View Preparation of TEM Specimens from Thin Films Using Adhesive Tape [PDF]
, 2011 A simple plan-view sample preparation technique for transmission electron microscopy (TEM) specimens is proposed for thin films by tearing-off the film with adhesive tape. The demand for very thin samples is highest for nanostructured materials where the
Czigány, Zsolt
core +1 more source