What a Detached Retina Taught Me About Connection, Healing, and the Brain
One week ago, instead of running the Grindstone 100K as planned, I was undergoing emergency eye surgery for a “macula-off retinal detachment” in my right eye.
That was not on the training schedule.
For about three weeks beforehand, I had noticed blurry vision in that eye. Because I had previously developed posterior capsule opacification (PCO) after cataract surgery, I assumed that was probably the culprit and that I simply needed the relatively routine laser procedure used to clear it.
It wasn’t.
My retina was detached. And not just a little bit.
The experience has given me a completely unexpected opportunity to explore something – in a very personal way – that I’ve been talking about for years: the importance of biological connection.
In this case, quite literally.
First, what exactly detached?
Most people think of the retina as something like the film or digital sensor in a camera. That’s useful, but biologically it’s much more interesting.
The retina is neural tissue lining the inside of the back of the eye. It contains photoreceptors, rods and cones, that convert light into biological signals. Those signals are processed through layers of retinal neurons before traveling through the optic nerve to the brain.
Within the retina is the macula, the specialized region responsible for detailed central vision. At its center is the fovea, where our highest-acuity vision occurs.
Immediately beneath the photoreceptors lies another extraordinary tissue called the retinal pigment epithelium, or RPE. The RPE performs numerous housekeeping and metabolic functions essential for photoreceptor function. Beneath that is the highly vascular choroid, which helps provide oxygen and nutrients.
These tissues aren’t merely sitting next to one another.
They function as a connected biological system. The National Eye Institute describes the photoreceptor outer segments and RPE as having a particularly close anatomical relationship.
And that connection is precisely what a retinal detachment disrupts.
What happened in my eye
In a “rhegmatogenous retinal detachment”, one or more tears develop in the retina. Fluid can then move through those openings and accumulate underneath the retina, separating the neural retina from its normal position.
Mine was extensive.
During surgery, my retinal surgeon found a “macula-off” detachment extending approximately from the 1 o’clock to 11 o’clock positions, along with numerous smaller retinal breaks and several larger tears.
Some of the larger tears had rolled edges associated with Grade B proliferative vitreoretinopathy, or PVR.
PVR is especially interesting from a biochemical perspective because it represents an exaggerated wound-healing response. Retinal detachment can trigger inflammation, activation of RPE and glial cells, cytokine and growth-factor signaling, cellular migration and extracellular-matrix remodeling. In more advanced PVR, contractile membranes can develop that exert traction on the retina.
In other words, healing requires inflammation and remodeling.
But when those same processes become excessive or poorly coordinated, they can become part of the problem.
Biology is rarely about turning a pathway completely “on” or completely “off” – but is rather more about proper coordination.
Putting Humpty Dumpty back together again
My repair involved several different procedures working together.
First came a vitrectomy, removing the vitreous gel and relieving vitreous traction on the retina. Vitrectomy provides access to the retina so tears, scar tissue and detachments can be repaired.
My surgeon then carefully shaved the vitreous around the periphery, drained the fluid that had accumulated underneath the retina and performed a fluid-air exchange so the retina could flatten back into its normal position.
Then came endolaser around the retinal tears, the drainage site and around the peripheral retina.
The laser doesn’t simply “glue” the retina back into place. It creates controlled tissue injury that stimulates a healing response and ultimately produces a stronger adhesion around vulnerable areas.
Then there was the scleral buckle.
A silicone band was placed around the outside of my eye. The buckle gently indents the eye wall inward, helping support the retinal breaks from the outside. Scleral buckles generally remain permanently in place.
Finally, the surgeon filled the eye with C3F8 gas.
The gas provides temporary internal tamponade, helping hold the retina in position while the biological repair matures. Gas bubbles are commonly used following vitrectomy for exactly this purpose.
So I now have a pretty extensive rebuild of my right eye: Outside support (buckle) + biological seal (laser-mediated healing of the retina) + inside support (gas bubble).
And then came the “face-down” week
For the first week after surgery, my instructions were very specific: face-down positioning during the day and sleeping on my right side.
This isn’t some bizarre retinal hazing ritual.
A gas bubble floats. Changing the position of the head changes which portion of the retina the bubble contacts. Positioning therefore allows the surgeon to use the gas as a temporary internal support exactly where it is needed. The American Society of Retina Specialists (ASRS) explains that postoperative positioning helps the bubble press the retina into its normal position while healing occurs.
Yesterday I had my first major postoperative check.
The retina looks good.
I had one more day of face-down positioning (yesterday and last night), and now I’m cleared to resume normal daily activities according to the instructions from my eye team.
The gas bubble, however, remains.
And because I’m looking through a large bubble of gas rather than the normal transparent optical environment of the eye, I still essentially can’t see through my right eye.
That should gradually change as the bubble shrinks and is replaced by the eye’s own fluid. Vision after retinal-detachment repair can take weeks or months to improve, particularly when the macula was involved.
So right now:
Anatomical recovery is ahead of functional recovery.
That’s an important distinction.
What happens next?
My next retinal examination is October 14.
Between now and then, the experiment becomes fascinating.
The retina has been mechanically reattached. The laser-induced adhesions continue maturing. The gas continues providing temporary support. The tissues need to recover from the detachment and surgery.
And eventually we’ll find out how much visual function returns.
There is no supplement, food, biohack or recovery technique that replaces the surgical repair I needed.
But as a nutritional biochemist, I’m naturally interested in the biology of the recovery environment: photoreceptor membranes, DHA (DocoHexaenoic Acid – the “other Omega3” fatty acid along with EPA – EicosaPentaenoic Acid), macular carotenoids such as lutein and zeaxanthin, oxidative stress, inflammation, circulation, sleep, protein and overall nutritional status.
As I document this journey, I’ll separate those questions into three categories:
What we KNOW. What is biologically PLAUSIBLE. And what I’m personally DOING.
Those aren’t always the same thing.
And this brings me back to the Connected Brain
This experience has given me a rather dramatic new way to think about the concept I’ve been developing around the Connected Brain.
We tend to imagine vision as something the eye does.
It isn’t.
Photons strike photoreceptors.
Photoreceptors depend upon the RPE (retinal pigment epithelium).
The RPE and outer retina depend upon circulation and metabolic support from neighboring tissues.
Retinal neurons process information.
Ganglion cells transmit signals through the optic nerve.
And the brain integrates those signals into what we experience as seeing.
Remove one critical connection and the entire system changes.
That’s remarkably similar to what we’re learning across the rest of human biology and nutritional biochemistry.
The brain communicates with the gut, heart, immune system, endocrine system and environment. Cells communicate through neurotransmitters, hormones, metabolites, inflammatory mediators and electrical signals. Health emerges not merely from the performance of individual parts, but from their ability to remain connected, coordinated and coherent.
For years I’ve said that “biochemistry drives behavior.”
This week I’ve been reminded that biochemistry also depends upon anatomy.
Sometimes restoring function begins with restoring connection.
In my case, a retinal surgeon literally put the system back together.
Now biology gets its turn. Fingers crossed!
