Snow, snow, snow!

Blog vol 3. 34. Snow, snow, snow!


Growing up in Timmins, we had snow all winter long and then some. When I was a child, stories about the Inuit peoples of the far north building igloos, travelling by dog sled, and taking on polar bears fascinated me. These peoples of the lands of snow frequently (and wisely) wore snow-blindness goggles.


Can snow make you blind? How did the goggles work?  Some clever and resourceful person, many moons ago, designed these shields because snow blindness is a real problem. Just imagine being out on ice flows hunting or travelling and suddenly you cannot see. This is life or death in the harsh climate of the north.


The blindness is caused by exposure to ultraviolet light. We have all heard of SPF (Sun Protection Factor) 30 or 50, which is the level of protection that you slather on when you go to the beach. The north, snow, and ice do not make us run for our SPF 30 lotion but should, especially for the exposed face.


The UV reflects off the ice and snow on a bright sunny day and can cause severe UV burn on the skin and the eyes.


The Inuit people took a caribou antler, whale baleen, or a piece of driftwood and carved two narrow slits horizontally where their eyes peeked out and then strapped sinew on the goggles and tied it around their heads. The tiny slits allowed enough light through to see, actually increasing the depth of focus while reducing the eyes’ exposure to UV. (Click here to learn more)


Skiing is another instance where the risk of UV burns is high with the combination of thinner air and the reflection off the snow caps. Prevention is key. A pair of quality ski goggles with UV filters (and a rose tint if you want to really impress through the moguls) with a head strap that fits over your helmet is a must. 


Just like with sunburn, you do not feel the burns on your eyes right away but a little time after.  These burns can be very painful and can limit your vision. The good news is that they are temporary.  Use cold eye drops to lubricate and soothe the eye (keep your eye drops in the fridge, feels really good on a sore eye).  If the symptoms worsen seek medical attention.  


Now put your feet up, grab a hot cocoa, a great book, and watch the snow gently descend….or hit the hills,  but go swooshing with UV-protecting goggles.


   

til next week,


 

the good doctor


By Dr. Mark Germain May 1, 2026
The good doctor discusses how the eye is a window to the heart with the help of the OCT.
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.
More Posts