Gerard owned a shop in the corner of a damp district in Brussels that sold nothing but clock gears and copper leaf springs. He didn’t sell watches. He didn’t sell batteries. He sold the things that allowed those objects to survive their own obsolescence. One Tuesday, a younger man, perhaps a nephew or a hired consultant with a sharp tie and a sharper tablet, convinced Gerard to stop stocking the “Triple-O” escapement springs.

The data was irrefutable. Gerard had only sold seven of them in the last three years. They occupied a drawer that could have held three hundred high-capacity lithium batteries, which sold at a rate of fifty per week. Gerard cleared the drawer.

Within a month, the master horologist from the village three towns over stopped coming. He was the only man who bought the Triple-O springs, but he was also the only man who bought the expensive, specialized oils and the hand-turned brass casing screws. When the spring was gone, the reason for the journey evaporated.

The consultant saw a victory in warehouse efficiency; Gerard saw the slow, silent death of a relationship that had funded his rent for two decades.

Recognized by Area Code

I spent most of this morning with my phone on mute, a mistake born of a distracted thumb, and missed ten calls. When I finally looked at the screen, I realized three of those calls were from people I recognize by their area codes alone. They are the regulars.

In the world of optical retail, a regular is a precious, fragile thing. They aren’t just “customers”; they are a specific set of parameters-a -4.75 spherical with a -1.25 cylinder at a 170-degree axis. They are a person who has found the one specific hydration profile that doesn’t make their eyes feel like they are filled with grit by 4:00 PM.

Last month, we implemented a new auto-cull stocking rule. The logic was cold and beautiful. If a product doesn’t move a certain number of units within a ninety-day window, it is flagged for removal. The spreadsheet doesn’t care about the story of the wearer. It only cares about the “turn.” It wants a shelf that vibrates with the friction of constant movement.

The “Laggard” in the Machine

I watched it happen to a woman we’ll call Leyla. Leyla has been coming to the physical location of Ece Naz Optik since 2008, long before we were Lensyum. She wears a very specific, low-volume toric lens. It’s a lens that most “modern” shops don’t even bother to list because the manufacturer produces it in small batches and the margins are thinner than a human hair.

To the algorithm, Leyla’s lens is a “laggard.” It’s a ghost in the machine, taking up space that could be occupied by a celebrity-endorsed color lens that sells a thousand boxes a month to teenagers. So, the system deleted it.

“I’ll see if I can find it elsewhere.”

– Leyla, a regular since 2008

When Leyla called for her quarterly reorder, we had to tell her it was no longer in stock. We offered her the “best-seller,” the high-velocity alternative that the spreadsheet promised would be a perfect fit. But the spreadsheet doesn’t have corneas. It doesn’t have nerve endings. Leyla tried the high-velocity lens for three days before returning it. It sat too high. It felt thick. It blurred at the edges of her vision.

She didn’t ask for a different recommendation. She just said, “I’ll see if I can find it elsewhere.” She didn’t sound angry; she sounded evicted.

Digital Aggression

As a handwriting analyst, my day job (if you can call it that) involves looking at the pressure of the pen, the slant of the letters, the way a signature betrays a person’s state of mind. I’ve looked at thousands of order forms over the years. I can tell when a regular is frustrated. The ink is heavier. The loops are tighter.

When I looked at the digital logs of our abandoned carts after the inventory purge, I saw the digital equivalent of an aggressive signature. People weren’t just leaving; they were being pushed out by a “smart” policy. We forget that the slow-moving products are often the anchors. They are the reason a customer feels “seen” by a brand.

In a sea of anonymous e-commerce giants, the fact that a shop carries that one weird lens you need is the only thing that separates that shop from a faceless warehouse in the middle of nowhere.

When we talk about the Aylık Lens market, we are talking about a thirty-day relationship. It is a cycle of trust. The wearer trusts that for those thirty days, their vision will be stable, their comfort will be consistent, and most importantly, that when day thirty-one arrives, the replacement will be waiting.

The Price of a Tumbleweed

Efficiency hunts for anything that looks like “waste,” but in the human world, waste is often where the soul lives. The extra five minutes a doctor spends talking to a patient is “inefficient.” The three boxes of specialized lenses that sit on a shelf for six months are “inefficient.” But those inefficiencies are the scaffolding of loyalty.

The second regular we lost was a young photographer named Caner. He used a specific tint of a monthly color lens-not to look like a movie star, but because it helped him perceive contrast in a way that he swore improved his editing process. It was a “low-velocity” SKU. The system flagged it. We stopped carrying it.

Caner didn’t just stop buying those lenses; he stopped buying his solutions, his backup glasses, and his eye drops from us. He migrated to a massive international marketplace. He saved five lira, and we lost a decade of trust. The spreadsheet doesn’t see the “basket value” of a loyal customer over ten years. It only sees the “holding cost” of a box of lenses today.

It is a form of corporate myopia-we are so focused on the clarity of the immediate profit that we have lost our depth perception.

Trade an Oak for a Thousand Tumbleweeds?

I’ve realized that the strength of Lensyum doesn’t come from acting like an algorithm. It comes from the twenty-year history of Ece Naz Optik, where the opticians actually knew the names of the people behind the prescriptions. They knew who needed the Zeiss Contact Life and who wouldn’t settle for anything less than the Zeiss Day 30 Compatic. They knew that a “slow seller” wasn’t a failure; it was a service.

When you optimize for speed, you inevitably lose the people who move slowly. And the people who move slowly-the regulars, the ones with the specific needs, the ones who have been with you since 1994-are the ones who stay. The “high-velocity” customers are the ones who will leave you the second someone else drops their price by a single cent. They have no roots. They are tumbleweeds in the digital economy.

The Empty Shelf

The third regular we lost was perhaps the most painful. He was an older man who always wrote a small note in the “comments” section of his online order. His handwriting, which I analyzed once just for my own curiosity, was full of wide, generous bowls in the ‘o’s and ‘a’s-a sign of a man who valued tradition and stability. He wore a specific multifocal lens that was notoriously difficult to stock.

When the “Velocity Veto” killed his lens, he didn’t even call. He just sent a short email: “I see you no longer have my vision in stock. Thank you for the many years of help.” The spreadsheet cleared the shelf to make room for progress, but all it really did was create a void where a person used to be.

We are currently in the process of reversing that rule. We are bringing back the “laggards.” We are restocking the “slow-movers.” Not because it makes the data look better-it doesn’t. The warehouse will look “messy” again. Our turnover rates will dip slightly. But the shelves will be full of the things that allow our regulars to survive.

Being “data-driven” is only useful if the person driving the data knows where they are going. If you are just following the numbers, you might find yourself in a very efficient, very profitable, and very empty room.

Unmuting the World

I’ve unmuted my phone now. I’m waiting for the next call from a regular. I want to be able to tell them that their “low-velocity” life is exactly what we have space for.

Because a lens isn’t just a piece of plastic; it’s the way someone sees the world. And you shouldn’t let an algorithm decide that someone’s world isn’t worth stocking.