Human meibum and tear film derived cholesteryl and wax esters in meibomian gland dysfunction and tear film structure

2021 ◽  
Author(s):  
Safal Khanal ◽  
Yuqiang Bai ◽  
William Ngo ◽  
Kelly K. Nichols ◽  
Landon Wilson ◽  
...  
Keyword(s):  
Tear Film ◽  
Meibomian Gland ◽  
Film Structure ◽  
Wax Esters ◽  
Meibomian Gland Dysfunction

scholarly journals Effects of a New Eyelid Shampoo on Lid Hygiene and Eyelash Length in Patients with Meibomian Gland Dysfunction: A Comparative Open Study

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Asuka Kobayashi ◽  
Takeshi Ide ◽  
Teruki Fukumoto ◽  
Emiko Miki ◽  
Kazuo Tsubota ◽  
...  
Keyword(s):  
Dry Eye ◽  
Tear Film ◽  
Meibomian Gland ◽  
Meibomian Gland Dysfunction ◽  
Controlled Study ◽  
Subjective Symptoms ◽  
Eyelid Margin ◽  
Before And After ◽  
And Function ◽  
Lid Hygiene

Purpose. Meibomian gland dysfunction (MGD) can lead to abnormalities in the composition and function of tear film, resulting in dry eye. Eyelid hygiene is a key to management of MGD. We tested a novel eyelid shampoo (Eye Shampoo Long, ESL) for its ability to maintain lid hygiene. This shampoo is nonirritating and can potentially lengthen eyelashes. This study was aimed to evaluate the efficacy of ESL in the treatment of MGD and its effects on eyelash length. Methods. Ten patients with MGD and 10 healthy subjects without MGD applied ESL twice daily for 8 weeks. Patients were examined for lid margin and dry eye before and after the trial. Subjective symptoms were evaluated. Eyelash length was measured at baseline and at the end of the trial. Results. In the MGD group, significant improvements were observed in subjective symptoms obstruction of the meibomian orifice, secretion of meibum, eyelashes contamination, eyelid margin foam, and SPK. Eyelash length became significantly longer. Conclusions. Maintaining eyelid hygiene using ESL improved the eyelid margins and symptoms of dry eye in MGD patients and increased eyelash length. These findings are promising and warrant confirmation in a larger randomized controlled study.

scholarly journals Effects of Eyelid Warming Devices on Tear Film Parameters in Normal Subjects and Patients with Meibomian Gland Dysfunction

2015 ◽  
Vol 13 (4) ◽  
pp. 321-330 ◽  
Author(s):  
Reiko Arita ◽  
Naoyuki Morishige ◽  
Rika Shirakawa ◽  
Yoichi Sato ◽  
Shiro Amano
Keyword(s):  
Tear Film ◽  
Normal Subjects ◽  
Meibomian Gland ◽  
Meibomian Gland Dysfunction ◽  
Warming Devices

scholarly journals Androgen and meibomian gland dysfunction: from basic molecular biology to clinical applications

2021 ◽  
Vol 14 (6) ◽  
pp. 915-922
Author(s):  
Li-Xiang Wang ◽  
Keyword(s):  
Tear Film ◽  
Meibomian Gland ◽  
The Body ◽  
Meibomian Gland Dysfunction ◽  
Evidence Based ◽  
Lipid Layer ◽  
Normal Functions ◽  
Potential Applications ◽  
Eye Symptoms ◽  
Dry Eye Symptoms

Meibomian gland, the largest sebaceous gland of the body, is responsible for the biosynthesis of lipid layer of the tear film to prevent excessive evaporation. The loss of normal functions of meibomian gland, known as meibomian gland dysfunction (MGD), is a chronic disease and is the leading cause of dry eye symptoms in the clinics. Studies have found sex hormones, especially androgen, play vital roles in the regulation of the functions of meibomian gland. Recently, androgen has also been preliminarily applied in clinics for the treatment of MGD and showed promising results, especially in people with endogenous androgen deficiency. This review summarized the mechanisms of the function of androgen on meibomian gland based on molecular, animal, and clinical studies, and proposed evidence-based views about its potential applications for the treatment of MGD.

scholarly journals A Case of Sebaceous Adenitis and Concurrent Meibomian Gland Dysfunction in a Dog

2020 ◽  
Vol 7 (2) ◽  
pp. 37 ◽  
Author(s):  
Roberta Sartori ◽  
Claudio Peruccio
Keyword(s):  
Clinical Signs ◽  
Tear Film ◽  
Meibomian Gland ◽  
Meibomian Gland Dysfunction ◽  
Sebaceous Glands ◽  
Anatomy And Physiology ◽  
Exfoliative Dermatitis ◽  
Dermatological Condition ◽  
Mongrel Dog ◽  
Sebaceous Adenitis

Sebaceous adenitis and concurrent meibomian gland dysfunction (MGD) were diagnosed in a two-year-old mongrel dog presenting with hypotrichosis, exfoliative dermatitis and blepharitis. Diagnosis of sebaceous adenitis was based on history, clinical signs, the histological demonstration of multifocal lymphohistiocytic and neutrophilic inflammation targeting the sebaceous glands and sebaceous glands loss. MGD was diagnosed by non-contact infrared meibography followed by tear film lipid layer interferometric evaluation. Ciclosporin and sebolytic shampoos controlled the dermatological condition, while doxycycline, warm compresses, palpebral massages and tobramycin/dexamethasone ointment controlled the blepharitis. This case report should stimulate clinicians to investigate MGD in dogs suffering from sebaceous adenitis, because the meibomian and sebaceous glands share similar anatomy and physiology.

A study to assess the efficacy of topical cyclosporine A 0.05% in the management of dry eye with meibomiam gland dysfunction

2022 ◽  
Vol 7 (4) ◽  
pp. 667-671
Author(s):  
Prajwalli Reddy ◽  
Wajeeha Umam
Keyword(s):  
Dry Eye ◽  
Cyclosporine A ◽  
Ocular Surface ◽  
Tear Film ◽  
Meibomian Gland ◽  
Meibomian Gland Dysfunction ◽  
Control Group ◽  
Dry Eyes ◽  
Group A ◽  
Group B

: Dry eye is a multifactorial disease of the tears and ocular surface that results in symptoms of discomfort, visual disturbance, and tear film instability with potential damage to the ocular surface. It is accompanied by increased osmolarity of the tear film and inflammation of the ocular surface. Meibomian Gland Dysfunction (MGD) is an abnormality of the meibomian gland that blocks the secretion of lipids. Without sufficient lipid production, tears evaporate quickly causing Dry Eye.MGD is associated with multiple pathological mechanisms including inflammation, microbial factors and lipid deficiencies. Topical Cyclosporine A (CsA) 0.05% is a calcineurin inhibitor that reduces inflammation by specifically inhibiting T‑cell activity, which reduces ocular surface inflammation and improves tear film dynamics. This was a prospective observational study done on 100 patients at the Department of Ophthalmology Basaveshwar teaching and general hospital, on patients of dry eyes due to meibomian gland dysfunction. Patients who were diagnosed with dry eyes due to meibomian gland dysfunction were invited to take part in the study. Patients were divided randomly into two groups of 50 patients each. This study, was explained in detail to them. An informed consent was obtained. Patients fulfilling the inclusion criteria were listed.All OSDI scores (symptom intensity, frequency and aggravation) revealed decreasing patterns throughout the observation period in both the groups. In single analysis, the cyclosporine A 0.05% group showed a significant improvement for each score at 3 months (p < 0.01, p = 0.01, p = 0.02, respectively). The mean TBUT after treatment in the group A (cyclosporine A group) increased to 12.36± 3.58(p<0.001) seconds, and in the group B (Control group) the TBUT score increased to 11.01±3.06 seconds. After 3 Months, there was statistically significant improvement in the mean Schirmer’s scores in both the treatment groups, however improvement was significantly greater in Cyclosporine A group. Prior to the treatment in group A (Cyclosporine A) mean Lissamine staining score was 2.73±0.15 and post treatment it reduced to 1.32±0.15 which was statistically significant (P<0.001). In group B (Control group) score before treatment was 2.46±0.15 and after treatment it reduced to 2.39±0.27 (p=0.11), not much difference was seen. : Findings from our study showed that there were significant improvements in the dry eye conditions due to defect in meibomian gland by treatment of topical Cyclosporine A 0.05% and sodium hyaluronate 0.1%.

scholarly journals The Influence of Overnight Orthokeratology on Ocular Surface and Meibomian Gland Dysfunction in Teenagers with Myopia

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Xiu Wang ◽  
Jing Li ◽  
Rui Zhang ◽  
Na Li ◽  
Yi Pang ◽  
...  
Keyword(s):  
Ocular Surface ◽  
Tear Film ◽  
Meibomian Gland ◽  
Meibomian Gland Dysfunction ◽  
Ocular Surface Disease Index ◽  
Time Points ◽  
Meniscus Height ◽  
Significant Difference ◽  
Before And After

Purpose. The aim of this study was to investigate the effect of overnight orthokeratology (OOK) on ocular surface and meibomian gland dysfunction in teenagers with myopia. Methods. A total of 59 subjects were recruited in this prospective study. The following tests were performed before and after 1, 3, 6, 12, and 24 months of OOK lens wear, including ocular surface disease index (OSDI) questionnaire, slit-lamp examination, and Keratograph 5M. Results. No infectious keratitis occurred during the study. OSDI scores increased gradually and reached the maximum at 6 months of OOK wear (P<0.001). The meniscus height was significantly increased at 1 and 3 months after the initiation of OOK (P=0.006, P=0.035). The corneal fluorescein staining at 1, 3, 6, 12, and 24 months after wearing OOK were all increased than the prewearing level with significant difference (P=0.014, P=0.036, P<0.001, P<0.001, and P=0.008, respectively). The first and the average tear film NIKBUT were all higher than the prewearing level, but there was no significant difference between every follow-up time points (P>0.05). The lid margin abnormalities were significantly increased (P=0.003, P=0.038, and P=0.015) at 6, 12, and 24 months after the initiation of OOK. There was no significant difference in the meibomian gland orifice scores at each follow-up time points compared to the prewearing level (P>0.05). The meibomian gland lipid secretion scores after wearing OOK were higher than those of the prewearing level, however, without statistically significant difference (P>0.05). No significant differences of the degree of difficulty of lipid excretions were detected after the initiation of OOK (P>0.05). There was no significant difference in meibomian gland dropout scores between all follow-up time points and the prewearing level (P=1.000). Conclusion. OOK increased the symptoms of dry eye and decreased the function of tear film by affecting the meniscus height and BUT. OOK did not affect the function of meibomian glands.Clinical Study registration number: ChiCTR18000185708.

Sign in / Sign up

Export Citation Format

Share Document