Effects of caffeine intake on tear film dynamics in healthy adults
Journal Title: Eye Science (Yanke Xuebao) - Year 2021, Vol 36, Issue 4
Abstract
[Objective:] To investigate the effects of high caffeine intake in a short period on tear film dynamics in healthy adults. [Methods:] The participants were 12 healthy adults (20–30 years old) with no history of ocular surface disease. Participants were given 5.0 mg/kg caffeine (preset the coffee powder according to the concentration) under constant routine conditions. Tear film parameters were assessed and tear collection was performed 2 h before and after caffeine intake. The tear meniscus height, non-invasive tear break-up time, Schirmer I test, intraocular pressure and average lipid layer thickness were all measured after a large amount of caffeine intake. [Results:] The tear meniscus height, non-invasive tear break-up time and intraocular pressure were significantly increased after caffeine intake, while the average lipid layer thickness was significantly lower than that before caffeine intake. The amount of tear fluid collected by Schirmer's I test paper was not statistically significant, and there was no gender difference in the effects of caffeine on tear secretion. [Conclusion:] After high caffeine intake, ocular tear dynamics are significantly altered and caffeine can stimulate tear secretion in healthy, non-dry-eyed subjects.
Authors and Affiliations
Yixin WANG, Li HUANG, Huping WU, Cheng LI
Keywords
Related Articles
- EP ID EP763496
- DOI 10.3978/j.issn.1000-4432.2021.03.04
- Views 17
- Downloads 0
The application of general anesthesia in the ambulatory glaucoma surgery
[Objective:] To analyze the application of general anesthesia in the ambulatory glaucoma surgery. [Methods:] This retrospective study collected 71 patients who underwent ambulatory glaucoma surgery with general anesthesi...
Research progress on diabetic keratopathy
Diabetes mellitus and its complications seriously affect the quality of life of patients. Diabetic keratopathy, one of diabetic complications, has been widely concerned for its increasing incidence. Diabetes mellitus dam...
Research status of the relationship between dry eye and mental health
Dry eye disease (DED) is a common chronic ocular surface disease. It can not only cause discomfort and damage to the eyes but also easily lead to psychological disorders in patients. The most common psychological disorde...
A qualitative study of home care and nursing needs of patients with severe acuity impairment or blindness
[Objective:] To explore the main nursing problems and demands of patients with severe visual impairment or blindness, so as to provide the basis for health staff to formulate home care support plans of high quality. [Met...
A case of Langerhans cell histiocytosis first diagnosed in ophthalmology
patient, male, 1year and 9months old, was first diagnosed as “eye tumor” in the ophthalmology department and requested for excision. But it was diagnosed as multiple Langerhans cell histiocytosis (LCH) through imaging an...