There are many online posts by patients who have been desperate to try anything to relieve their dry eye symptoms. It is frustrating for patients that science has not discovered a cure for dry eye yet. It is frustrating for physicians that we do not have a cure to provide for patients. Despite what some patients say online, most physicians are honestly trying to find the needed help their patients are so desperately seeking. We have IPL and Intraductal Gland Probing in our office and have many patients who have been very happy with their treatment. Still, however, neither IPL, nor Intraductal Gland Probing, nor Lipiflow for that matter, have a 100% guarantee, which is frustrating for patients and for physicians alike who have in good faith acquired this technology or learned these techniques in the case of Intraductal Gland Probing hoping to help their patients, who often include their relatives and neighbors who they honestly want to help.
All the treatments on Step Ladder Dry Eye sheet are attempts to provide some relief to our patients even if we cannot yet provide a cure: https://drcremers.com/2015/07/new-innovations-in-dry-eye-treatments.html
One item that I have been hesitant to add is noted in a post below by a desperate patient:
“After a failed Lipiflow procedure in Feb 2014 & many other treatments since 2009, I actually listened to my mom who also had MGD and she had her DR prescribe Azithromycin 500mg about 9 months ago to use for 6 days and it worked so well for her that her dry eye symptoms improved significantly for about 9 months. When I heard this I had hard time believing it but on April 4 2014 I asked my ophthalmologist if I can try it and I have notice my eyes at night are not as dry and when I awake they open more easily and feel more moist. I have not added any other treatments recently and at least for my condition this antibiotic has been the most effective and all for $10.”
The issue with this post is that most eyeMDs try not to prescribe oral Azithromycin 500mg given potential systemic side effects and that the FDA did not technically approve Azithromycin orally for treatment of meibomian gland dysfunction:
The risks and benefits of antibacterial therapy should be considered in prescribing decisions. Pharmacologic and epidemiologic data point to lethal arrhythmias as a potential consequence of QT-interval prolongation with use of azithromycin, other macrolides, and fluoroquinolones. This possibility should give clinicians pause when they’re considering prescribing antibacterial drugs, especially for patients with preexisting cardiovascular risk factors or clinical conditions in which antibacterial drug therapy has limited benefits. http://www.nejm.org/doi/full/10.1056/NEJMp1302726
- Acute bacterial exacerbations of chronic pulmonary disease
- Acute bacterial sinusitis
- Community-acquired pneumonia
- Pharyngitis/tonsillitis
- Uncomplicated skin and skin structure infections
- Urethritis and cervicitis
- Genital ulcer disease
Abnormal Heart Activity and Sudden Cardiac Death
Hepatotoxicity (Toxic Liver Disease)
Hypersensitivity
Purpose: To evaluate the effects of oral azithromycin in patients with posterior blepharitis.
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Conclusions: The combination of multiple clinical parameters shown in this study supports the clinical efficacy of pulsed oral azithromycin therapy for the management of posterior blepharitis.
Less Systemically Invasive Options to Treat Dry Eye:
1. Intense Pulse Light Therapy
2. Lipiflow
3. Intraductal Gland Probing
Curr Opin Ophthalmol. 2015 Jul;26(4):314-8. doi: 10.1097/ICU.0000000000000166.
Intense pulsed light therapy for the treatment of evaporative dry eye disease.Author information
AbstractPURPOSE OF REVIEW:RECENT FINDINGS:SUMMARY:
Another alternative is to use:
Topical Azithromycin and Oral Doxycycline Therapy
This makes more sense as Topical Azithromycin has fewer risks. The issue I have with these “Topical Azithromycin” studies is that almost all of them have been sponsored by Inspire Pharmaceuticals which makes Azasite (Topial Azithromycin: there is no generic version yet).**
Also, I would love to do a study where only 20mg or 50mg of Doxycycline once per day is used as this is the dose Dr. Folkman at Harvard Medical School found was the best dose for Doxy’s anti-inflammatory effect.
Subjects were provided 1% topical azithromycin ophthalmic solution (Azasitetm, Inspire Pharmaceuticals, Inc, Raleigh, NC) with instructions to use one drop twice daily for two days then once daily for the four week duration of the treatment phase of the study. Subjects were instructed not to instill medication the morning of examinations. Oral doxycycline hyclate (100 mg) was taken twice a day for two months of therapy.
———————-Study——————————
Cornea. 2013 Jan; 32(1): 44–53.
PMCID: PMC4138220
NIHMSID: NIHMS369067
**Supported by Public Health Service research grant EY017094-03 (Bethesda, MD., U.S.A.), the Kentucky Lions Eye Foundation, an unrestricted grant from Research to Prevent Blindness Inc., and a grant from Inspire Pharmaceuticals, Inc.Topical Azithromycin and Oral Doxycycline Therapy of Meibomian Gland Dysfunction: A Comparative Clinical and Spectroscopic Pilot Study
———–Study————-
This study shows the benefit of Azithromycin on the Meibomian Glands though this was an in vitro study.
Effect of Azithromycin on Lipid Accumulation in Immortalized Human Meibomian Gland Epithelial Cells FREE
[–] Author Affiliations
1Schepens Eye Research Institute, Massachusetts Eye and Ear, and Harvard Medical School, Boston
Meibomian gland dysfunction (MGD) is believed to be the leading cause of dry eye disease (DED), which affects tens of millions of Americans.1 Of particular interest, the most common pharmaceutical treatment for the management of MGD in the United States is the off-label use of topical azithromycin.2 This macrolide antibiotic is presumed to be effective because of its anti-inflammatory and antibacterial actions, which may suppress the MGD-associated posterior blepharitis and growth of bacteria on the eyelid.3However, to our knowledge, no published, peer-reviewed data demonstrate that azithromycin has the ability to act directly on the human meibomian gland to enhance this tissue’s function and to ameliorate the pathophysiology of MGD.
We hypothesize that azithromycin can act directly on human meibomian gland epithelial cells to stimulate their differentiation, enhance the quality and quantity of their lipid production, and promote their holocrine secretion. Our purpose was to begin to test our hypothesis.
Immortalized human meibomian gland epithelial cells (IHMGECs; passages 20-22) were cultured in the presence or absence of 10% fetal bovine serum as previously reported.4 Cells were treated with the ethanol vehicle or azithromycin (10 µg/mL; Santa Cruz Biotechnology) for varying periods. Cellular morphological appearance was recorded, cells were counted with a hemocytometer, and lipid accumulation was assessed by staining cells with LipidTOX green neutral lipid stain (Invitrogen Corp) according to reported methods.4Staining fluorescent intensities were quantified using ImageJ software (http://rsbweb.nih.gov/ij/index.html). Statistical analyses were performed with t test (2-tailed, unpaired).
Our results show that azithromycin induces a striking, time-dependent accumulation of lipid in IHMGECs (Figure 1A). Within 3 days of azithromycin exposure, the number, size, and staining intensity of intracellular lipid-containing vesicles had markedly increased as compared with those of vehicle-treated control cells. This azithromycin effect on lipids appeared to become maximal at days 3 to 7 of the study (Figure 1B).
Figure 1.
Effect of Azithromycin on the Lipid Accumulation and Morphology of Immortalized Human Meibomian Gland Epithelial Cells
Cells were treated with ethanol vehicle or azithromycin in serum-containing media for 7 days. Results are representative of 3 separate experiments. A, Appearance of cellular lipids. Cells were fixed and stained with LipidTOX green neutral lipid stain and 4’,6-diamidino-2-phenylindole (DAPI; red nuclear stain) (Invitrogen Corp) (original magnification ×400). B, LipidTOX staining intensity. Means are reported as fold-change compared with control values on the same day. Error bars indicate standard error. C, Cellular morphology. Images were taken prior to LipidTOX staining. Azithromycin-induced cellular maturation and vesicle accumulation were often followed by cell disruption and vesicle release (arrowhead, day 7) (original magnification ×200).aSignificantly greater than control (P < .005).
Evaluation of cellular morphology indicated that azithromycin may promote terminal maturation of IHMGECs given that vesicle accumulation was often followed by a cell break-up and vesicle release (Figure 1C).
In contrast to these effects, azithromycin reduced the proliferation of IHMGECs. As shown in Figure 2, this result was found irrespective of whether IHMGECs were cultured under proliferation or differentiation conditions.
Figure 2.
Influence of Azithromycin on Proliferation of Immortalized Human Meibomian Gland Epithelial Cells
Cells were cultured in the absence (A) or presence (B) of serum for up to 7 days. Cell numbers at day 0 represent the baseline, and data are reported as mean ± standard error. Similar results were found in 2 additional studies.aSignificantly less than control (P < .005).
This study supports our hypothesis that azithromycin can act on human meibomian gland epithelial cells and stimulate their lipid accumulation. This azithromycin effect appears to be paralleled by a cellular maturation, a decreased proliferation, and a holocrine-like secretion.
This azithromycin action is quite notable because MGD is thought to be the most common cause of DED.1Typically, the meibomian glands produce and release a lipid mixture that promotes the stability and prevents the evaporation of the tear film, thereby playing an essential role in ocular surface health. Conversely, MGD destabilizes the tear film and increases its evaporation. Meibomian gland dysfunction is caused primarily by hyperkeratinization of the terminal duct epithelium and reduced secretion quality, and it leads to cystic dilatation of glandular ducts, acinar cell death, and lipid deficiency.1 The end result is DED, characterized by a cycle of tear film hyperosmolarity and ocular surface stress and leading to increased friction, inflammation, and damage to the eye.5 The effect of moderate to severe DED is analogous to conditions such as dialysis and severe angina and is associated with significant pain, role limitations, low vitality, and poor general health.5
Given our finding that azithromycin stimulates the function and differentiation of IHMGECs in vitro, it is possible that this antibiotic may prove beneficial as a treatment for MGD and its associated DED in vivo.
ARTICLE INFORMATION
Published Online: December 19, 2013. doi:10.1001/jamaophthalmol.2013.6030.
Study concept and design: Liu, Sullivan.
Acquisition of data: Liu.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Liu, Sullivan.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Liu, Sullivan.
Obtained funding: Liu, Sullivan.
Administrative, technical, or material support: Kam, Ding.
Study supervision: Liu, Sullivan.
Conflict of Interest Disclosures: Schepens Eye Research Institute is planning to submit a provisional patent based, in part, on the data presented in the article. No other disclosures were reported.
Funding/Support: This work was supported by grant EY05612 from the National Institutes of Health, the Margaret S. Sinon Scholar in Ocular Surface Research Fund, and the Guoxing Yao Research Fund.
Role of the Sponsor: The funding organizations had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
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