the good doctor on: Vaccines, Vaccines, Vaccines

Blog #44 Vaccines, Vaccines, Vaccines

On two previous occasions I have discussed vaccines. As Freddie Mercury so aptly put it, “Give it to me one more time”.

The rollout of vaccines for Covid has been fraught with delays and political issues. In spite of this, we are making progress. Patience, our turns will come; definitely, a light at the end of the tunnel.

I want to look at the shingles vaccine again, particularly, the Shingrix vaccine, which the government is providing for free for 65-70 year olds. This past week I was reminded of the necessity for this preventive measure. A long-time patient of mine recently got shingles, and it has affected the trigeminal nerve on the side of her face and head. We were able to control the infection on the left eye, and it is quiet now, but the lasting neuralgia is driving her crazy, it is so painful. No vaccine is 100% effective, but this could likely have been prevented.

Almost all of us have the Herpes Zoster virus (fancy name for chicken pox) in our systems. Back in the day, rumour has it that parents had `chicken pox parties` to make sure that their children got the disease while young, since getting the Zoster virus when older is much more unpleasant and more risky. Basically everyone had chicken pox at some point. Problem is, all Herpes viruses infect the body, then camp out in the dorsal ganglia, and attack at a later stage in life when we are compromised.

The Herpes virus never leaves your body. Shingles is the same chicken pox virus acting up after years (and years), and unfortunately it does seem to act up when we are stressed already. The acute rash and pain lasts for 3-5 weeks with residual pain for up to three months. Permanent nerve damage will happen in up to 50% of people 60+, if untreated, and in 10-13% of younger adults.

So have your children inoculated for chicken pox. And if you are an adult, get Zostavax or the Shingrix vaccine for shingles.

There is not conclusive evidence about whether people who had the chicken pox vaccine are at risk for shingles. As the people with the vaccine get older, this will become more clear. Consult your doctor about what is best for you.

Please do consider an ounce of prevention for a possibly debilitating condition.

Til next week,

the good doctor, Dr. Mark Germain, Burlington Optometrist

The good doctor take a deeper look at how gut health is connected to eye tissues.
By Dr. Mark Germain April 29, 2026
Blog vol 6.40. The Gut and the Eyes. One of my biggest jobs is to keep abreast of new research and advances in eye health. Most recently, we have seen new stem cell research, gene therapies, as well as new drugs for dry and wet macular degeneration. In January of this year, there was an article in the journal, Cell Death and Disease, that looked at cell apoptosis, specifically with the photoreceptors of the eye. (Read the article here ). Apoptosis is the genetic programming of deliberate and constructive cell death, allowing for the maintenance of healthy structures and systems in the body. Some estimates have the body replacing 50 to 70 billion cells daily by this process. Necrosis, on the other hand, is unplanned cell death caused by injury, toxins, or other negative outside factors; this causes inflammation and disrupts the body’s balance of things. There are stressors that speed up cell turnover. The study looked at photoreceptors in the retina and were able to demonstrate cellular recovery, even in late stages of apoptosis, recovery not breakdown. When certain stressors were reduced, by working with the mitochondria, there was recovery of the photoreceptor cells. How? Mitophagy, the mitochondria’s own process of programmed breaking down and then repurposing the recycled components for new ones. This mitochondrial repair helps to reverse the sequence of apoptosis for the photoreceptors. Mitochondria, how cool. How is this helpful for our eyes? Conditions like retinitis pigmentosa or macular degeneration directly involve the photoreceptors and may be slowed or reversed by helping the mitochondria. So, let’s take care of those mitochondria. There is some evidence for nutritional support for the mitochondrial system. The nutrient, Urolithin A (UA), which is a compound made in our gut from fiber found in pomegranates, berries, and nuts is the only clinically proven substance known to trigger mitophagy, made in the gut no less. Vitamin B3 is critical for mitochondria function, however vitamin B3 based supplements are still to be clinically tested for their support of cell recovery. Nutrients Coenzyme Q10 and L-carnitine are known to help the mitochondria generate energy, and interestingly, infrared light therapy has also been shown to benefit mitochondrial function. Again, food for thought. The gut and its function needs a lot of research. How do probiotics and nutrient precursors affect eye tissues? It is so interesting that the gut can be a factor in eye health. Maybe adding Urolithin A as a supplement is wise, along with the antioxidants in Lutein and Zeaxanthin we use to combat photoreceptor degeneration. Will keep you posted on any new developments.  The good doctor
By Dr. Mark Germain April 16, 2026
The good doctor focuses in on visual processing. Why do we miss things that are right in front of our eyes?
By Dr. Mark Germain April 10, 2026
The good doctor discusses the Artemis II mission, space travels affects on the eyes, and "the dark side of the moon"
By Dr. Mark Germain April 3, 2026
The good doctor discusses exciting new and emerging options to treat nystagmus.
By Dr. Mark Germain March 27, 2026
The good doctor reflects on The Country of the Blind, a book by Andrew Leland which gives insight into the experience of vision loss.
By Dr. Mark Germain March 19, 2026
This week's blog focuses on the newest version of the Neurolens - a lens with technology that can provide relief for headaches, neck pain, and eye strain caused by trigeminal dysphoria.
More Posts