Determination of Tear Lipid Film Thickness Based on a Reflected Placido Disk Tear Film Analyzer
نویسندگان
چکیده
منابع مشابه
A compositional based model for the tear film lipid layer.
BACKGROUND The tear film lipid layer is formed from lipids secreted by meibomian glands of the eyelid. After initial analyses of these lipids we concluded that an understanding of the function of the various classes of lipids in a normal lipid layer could only be understood after detailed investigations of both polar and nonpolar lipids of the meibomian gland. METHODS Meibomian gland secretio...
متن کاملImage-based quantitative analysis of tear film lipid layer thickness for meibomian gland evaluation
BACKGROUND Dry eye syndrome is one of the most common ocular diseases, and meibomian gland dysfunction (MGD) is the leading cause of evaporative dry eye syndrome. When the tear film lipid layer becomes thin due to obstructive or hyposecretory meibomian gland dysfunction, the excessive evaporation of the aqueous layer can occur, and this causes evaporative dry eye syndrome. Thus, measuring the l...
متن کاملTear film stability: a review.
Tear film stability can be assessed via a number of tools designed for clinical as well as research purposes. These techniques can give us insights into the tear film, and allow assessment of conditions that can lead to dry eye symptoms, and in severe cases, to significant ocular surface damage and deterioration of vision. Understanding what drives tear film instability and its assessment is al...
متن کاملLearning features on tear film lipid layer classification
Dry eye is a prevalent disease which leads to irritation of the ocular surface, and is associated with symptoms of discomfort and dryness. The Guillon tear film classification system is one of the most common procedures to diagnose this disease. Previous research has demonstrated that this classification can be automatized by means of image processing and machine learning techniques. However, a...
متن کاملTurnover rate of tear-film lipid layer determined by fluorophotometry
AIM This study was performed to independently assess the turnover rates of aqueous and lipid layers of the tear film. METHODS Two fluorescent dyes, fluorescein sodium and 5-dodecanoylaminofluorescein (DAF), which is a free-fatty-acid conjugate of fluorescein, were applied to the right eye of 12 healthy volunteers. Fluorescent intensity of the precorneal tear film was measured at the central c...
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ژورنال
عنوان ژورنال: Diagnostics
سال: 2020
ISSN: 2075-4418
DOI: 10.3390/diagnostics10060353