CBD and Macular Degeneration: Can It Help?

CBD and Macular Degeneration: Can It Help?

What is Macular Degeneration? According to the American Macular Degeneration Association, macular degeneration (or MD) is the leading cause of vision loss in the country, currently affecting more than 10 million Americans of all ages, more than cataracts and glaucoma combined. Considered an “incurable disease,” MD is caused by the deterioration of the central portion of the retina, i.e. the inside back layer of our eye that first “records” images before they are sent to the optic nerve and brain, where they are translated into scenes we can comprehend. The job of the “macula” is to focus the central vision of the eye. It controls our ability to read, drive and recognize colors and faces. We are able to see details in objects because of the macula as well. When the cells of the macula begin to deteriorate, the result is that images are not received correctly. In the early and intermediate stages of the disease, blurred vision or waviness may occur. As MD worsens, however, central vision may become lost altogether (although peripheral sight remains). As we shall see, there are quite a few attributes of cannabis that may correlate it chemically with MD relief. But first, let’s hear about one case where the results of CBD oil in particular on Intermediate MD were crystal clear. Fabi’s Story Fabi is a small business owner and active part of the tiny, artist community of Taos, New Mexico. About a year ago, Fabi contracted a tick-born disease. At the suggestion of a friend, Fabi began using a straight CBD oil that she was able to obtain at her local herb store for the condition. She started using the CBD oil internally as instructed by the trained herbalist on staff there. While she says that her disease symptoms did seem to disappear while she has been on the CBD oil (although she couldn’t say for sure because her symptoms tend to come and go), ANOTHER healthy side effect of CBD was undeniable. Fabi had also been suffering from macular degeneration for a while (longer than the tick-born illness). About three weeks after starting to use CBD oil, Fabi went to an appointment with her eye doctor. In the beginning months of her MD diagnosis, she received the “standard of care” for someone with her condition: injections of either Lucentis, Avastin or Eylea directly into the eye. All three of these drugs, two of which are off-shoots of colorectal cancer treatment drugs, are designed to inhibit the growth of vascular endothelial growth factor (VEGF). An overabundance of VEGF proteins in the eye area are thought to contribute to abnormal blood vessel growth in the retina, one of the factors contributing to macular degeneration. Because the injections were so unpleasant for her and they weren’t improving the condition, Fabi decided to discontinue them months ago. At the time, she simply resolved to live with the condition, and possibly the loss of her eyesight, as best she could. That day, her doctor took the usual round of photos of her eyes to see how the condition was progressing. She began with the “wet” right eye, which before that day had been classified as being “Intermediate MD,” meaning some loss of vision and symptoms of MD were clearly present. Her doctor couldn’t believe what she saw. “The eye doctor treating me for macular degeneration couldn’t believe the photo of the macular,” Fabi said in a recent Facebook post about the visit. “The leaking in the blood vessel that causes lesions, bumps, swelling, etc. (which causes the loss of vision) was mostly gone.” According to Fabi, her doctor commented: “This can’t be! You haven’t been getting injections so how did the swelling go down?” Fabi wrote (and confirmed later in a brief interview with UPG), that the only thing she had changed over the course of the three weeks prior to her doctor’s appointment was the introduction of taking CBD oil sublingually (under the tongue). Fabi says that her right eye has gone down from an “Intermediate MD” to an “Early Stage MD” diagnosis. She is now excited to keep up with her CBD oil protocol, which she is confident will clear up the right eye even more and begin to work its magic on the left as time goes on. “I’m estatic!” says Fabi Do Cannabiniods Help Macular Degeneration? Was it the CBD oil that caused the macular degeneration in Fabi’s right eye to reduce so dramatically in such a short time? Since no studies have been done on cannabinoid therapy and MD directly, scientifically, no one can say for sure. However, there are some interesting correlations between certain characteristics of the healing power of cannabis and the particular mechanisms of macular degeneration: There are cannabinoid receptors in the eye area. In a ground-breaking Finnish study on glaucoma conducted in 2002 and published in the journal Pharmacology & Therapeutics, researcher Tomi Järvinena and his team discovered that the eye area has cannabinoid receptors, making this intricately complicated area of the body also a part of the all-encompassing endocannabiniod system (which helps to balance and regulate all other body systems). In the study, smoking cannabis directly was found to lower intraocular pressure in glaucoma patients, but “the discovery of ocular cannabinoid receptors implied an explanation for the induction of hypotension by topical cannabinoid applications.” Cannabis is an anti-inflammatory. The fact that cannabis is an anti-inflammatory is nothing new. But cannabidiol has also been shown to be an anti-inflammatory specifically for the retina area, especially when that inflammation is associated with endotoxin exposure and diabetes. Believe it or not, there is a direct correlation between all three of these conditions. Diabetes and macular degeneration often go hand in hand (specifically because of low glutathione levels). Exposure to bacterial endotoxins, on the other hand, can often be an initial cause of MD. And all three of these conditions are instigated by the inflammatory response, which, of course, CBD has proven to be able to mitigate quite effectively. Cannibinoids have been shown to inhibit VEGF growth. The whole point of administering the grueling injection of drugs directly into the eye for MD patients is because, supposedly, these drugs have the ability to stop the progression of vascular endothelial growth factor (VEGF). But cannabis has also been shown to do the same thing, with little to no harsh side effects. A 2004 mouse model study of gliomas (brain tumors) conducted by researchers at Comlutense University in Madrid, Spain found that cannabinoids inhibited VEGF pathways, thus slowing tumor growth in the mice. The same effect was also seen in two glioma patients as well. “Because blockade of the VEGF pathway constitutes one of the most promising anti-tumoral approaches currently available, the present findings provide a novel pharmacological target for cannabinoid-based therapies,” the final report, published in the journal Cancer Research, reported. Science may someday prove cannabinoid therapy to be the safe, effective, go-to therapy for the millions of Americans affected with macular degeneration. In the meantime, for Fabi (and others like her), perhaps the only proof she needs is the kind she can see with her own two eyes.

1 comment

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