The Twenty-Minute Operation

There is a calculation I find difficult to look away from.

A cataract operation takes somewhere under half an hour. In competent hands it is routine to the point of being unremarkable — an incision of around two millimetres, the clouded lens broken up and drawn out, a folded acrylic replacement pushed through the same opening and allowed to open inside the eye. No stitches, in most cases. The patient walks out the same day.

That operation takes a person who cannot see well enough to leave their house unaccompanied and returns them to work, to their family, and to the ordinary business of being an adult with agency. There is no other intervention in medicine that buys as much for as little.

And roughly a hundred million people cannot get it.

The bottleneck is not the surgery

This is the part that surprises people outside the specialty. The barrier is not that the operation is hard, or that the technique is unavailable, or that the science needs advancing. Cataract surgery was essentially solved decades ago. The barrier is that in large parts of the world there is no trained surgeon within a day’s travel, no working microscope in the district hospital, no supply of intraocular lenses, and no realistic way for the patient to pay for any of it.

It is, in other words, a distribution problem wearing a medical costume.

Which is why I have become slightly allergic to a particular kind of charitable gesture: the visiting surgical mission that flies in, operates for ten days, posts the photographs, and leaves. I understand the appeal. I have felt it. It is enormously satisfying to do a hundred operations in a fortnight and watch a hundred people see. But when the plane leaves, the district is exactly where it was, minus a fortnight.

What actually compounds

The organisations doing the most durable work are usually the least photogenic. They fund the local surgeon who is already there and already licensed — PMDC-registered in Pakistan, KKI in Indonesia, MMC in Malaysia — and they pay the accredited partner hospital directly rather than handing cash across in the field. They buy the consumables in advance. They fund the list, not the trip.

None of that makes a compelling photograph. All of it survives the plane leaving.

This is the reasoning behind the work I do with World Aid Network, and it is the reason I say yes to some invitations and no to rather more. The question I have learned to ask of any programme is a dull one: what is still here in three years? If the honest answer is “the memory of a visit”, it is a holiday with instruments.

The uncomfortable part

I perform this operation, many times a week, in West Yorkshire. My patients get it because they happen to have been born inside a health system that provides it. That is the entire difference. Not merit, not need, not urgency — postcode, scaled up to the size of a passport.

I do not have a tidy conclusion to that. It sits there, and it is the reason I find the arithmetic hard to look away from.